Genesis
This commit is contained in:
commit
796a01376e
GPG Key ID:
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3
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vendored
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3
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||||
/target
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369
Cargo.lock
generated
Normal file
369
Cargo.lock
generated
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@ -0,0 +1,369 @@
|
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26
Cargo.toml
Normal file
26
Cargo.toml
Normal file
@ -0,0 +1,26 @@
|
||||
[package]
|
||||
name = "doby"
|
||||
version = "0.1.0"
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||||
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|
||||
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|
||||
license = "GPL-3.0-or-later"
|
||||
description = "Secure symmetric encryption from the command line"
|
||||
readme = "README.md"
|
||||
|
||||
[profile.release]
|
||||
lto = true
|
||||
codegen-units = 1
|
||||
|
||||
[profile.dev.package.argon2]
|
||||
opt-level = 3
|
||||
|
||||
[dependencies]
|
||||
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|
||||
rand = "0.8"
|
||||
aes = { version = "0.7", features = ["ctr", "armv8"] }
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||||
hmac = "0.11"
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||||
blake3 = "0.3"
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||||
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|
||||
argon2 = "0.2"
|
||||
rpassword = "5.0"
|
||||
zeroize = "1.3"
|
||||
674
LICENSE
Normal file
674
LICENSE
Normal file
@ -0,0 +1,674 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
||||
software and other kinds of works.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users. We, the Free Software Foundation, use the
|
||||
GNU General Public License for most of our software; it applies also to
|
||||
any other work released this way by its authors. You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to prevent others from denying you
|
||||
these rights or asking you to surrender the rights. Therefore, you have
|
||||
certain responsibilities if you distribute copies of the software, or if
|
||||
you modify it: responsibilities to respect the freedom of others.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must pass on to the recipients the same
|
||||
freedoms that you received. You must make sure that they, too, receive
|
||||
or can get the source code. And you must show them these terms so they
|
||||
know their rights.
|
||||
|
||||
Developers that use the GNU GPL protect your rights with two steps:
|
||||
(1) assert copyright on the software, and (2) offer you this License
|
||||
giving you legal permission to copy, distribute and/or modify it.
|
||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
|
||||
authors' sake, the GPL requires that modified versions be marked as
|
||||
changed, so that their problems will not be attributed erroneously to
|
||||
authors of previous versions.
|
||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
can do so. This is fundamentally incompatible with the aim of
|
||||
protecting users' freedom to change the software. The systematic
|
||||
pattern of such abuse occurs in the area of products for individuals to
|
||||
use, which is precisely where it is most unacceptable. Therefore, we
|
||||
have designed this version of the GPL to prohibit the practice for those
|
||||
products. If such problems arise substantially in other domains, we
|
||||
stand ready to extend this provision to those domains in future versions
|
||||
of the GPL, as needed to protect the freedom of users.
|
||||
|
||||
Finally, every program is threatened constantly by software patents.
|
||||
States should not allow patents to restrict development and use of
|
||||
software on general-purpose computers, but in those that do, we wish to
|
||||
avoid the special danger that patents applied to a free program could
|
||||
make it effectively proprietary. To prevent this, the GPL assures that
|
||||
patents cannot be used to render the program non-free.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
||||
207
README.md
Normal file
207
README.md
Normal file
@ -0,0 +1,207 @@
|
||||
|
||||
# doby
|
||||
|
||||
Secure symmetric encryption from the command line
|
||||
|
||||
## Features
|
||||
|
||||
* Fast: written in [rust](https://www.rust-lang.org), encrypts with [AES-256-CTR](https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Counter_(CTR))
|
||||
* [HMAC](https://en.wikipedia.org/wiki/HMAC) ciphertext authentication
|
||||
* Password brute-force resistance with [Argon2](https://en.wikipedia.org/wiki/Argon2)
|
||||
* Encryption from STDIN/STDOUT or from files
|
||||
* Adjustable performance & secuity parameters
|
||||
|
||||
## Disclamer
|
||||
doby is provided "as is", without any warranty of any kind. I'm not a professional cryptographer. This program didn't receive any security audit and therefore __shouldn't be considered fully secure__.
|
||||
|
||||
## Usage
|
||||
|
||||
Encryption
|
||||
|
||||
```bash
|
||||
doby my-super-secret-source-code.rs encrypted.doby
|
||||
```
|
||||
|
||||
Decryption
|
||||
|
||||
```bash
|
||||
doby encrypted.doby decrypted.rs
|
||||
```
|
||||
|
||||
If you ommit file path or use `-`, doby operates from `stdin/stdout`
|
||||
|
||||
```bash
|
||||
# Read from stdin and write to stdout
|
||||
cat my-super-secret-music.flac | doby > encrypted.doby
|
||||
|
||||
# Read from a file and output to stdout
|
||||
doby encrypted.doby > decrypted.flac
|
||||
|
||||
# Read from stdin and save to a file
|
||||
cat my-super-secret-logs-file.log | doby - logs.doby
|
||||
```
|
||||
|
||||
Speicfy password from the command line
|
||||
|
||||
```bash
|
||||
doby -p "A super very ultra strong passphrase" my-super-secret-document.pdf document.doby
|
||||
```
|
||||
|
||||
Double encryption
|
||||
|
||||
```bash
|
||||
doby -p "first password" my-super-secret-database.db | doby -f - double-encrypted.doby
|
||||
```
|
||||
|
||||
Increase password brute-force resistance
|
||||
|
||||
```bash
|
||||
echo "you-will-never-break-this" | doby --memory-cost 524288 --threads 16 --iterations 40 > my-super-secret-password.doby
|
||||
```
|
||||
|
||||
## Full Options
|
||||
|
||||
```
|
||||
USAGE:
|
||||
doby [FLAGS] [OPTIONS] [ARGS]
|
||||
|
||||
FLAGS:
|
||||
-f, --force-encrypt Encrypt even if doby format is recognized
|
||||
-h, --help Prints help information
|
||||
-V, --version Prints version information
|
||||
|
||||
OPTIONS:
|
||||
-p, --password <password>
|
||||
-b, --block-size <blocksize> Size of file chunk (in bytes) [default: 65536]
|
||||
-m, --memory-cost <memory cost> Argon2 memory cost (in kilobytes) [default: 4096]
|
||||
-t, --threads <threads> Argon2 parallelism (between 1 and 255) [default: 4]
|
||||
-i, --iterations <iterations> Argon2 time cost [default: 10]
|
||||
|
||||
ARGS:
|
||||
<INPUT> <PATH> | "-" or empty for stdin
|
||||
<OUTPUT> <PATH> | "-" or empty for stdout
|
||||
```
|
||||
|
||||
## Build
|
||||
|
||||
You should verify commits before building the binary. You can download my PGP key from keyservers:
|
||||
|
||||
```
|
||||
gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 007F84120107191E
|
||||
```
|
||||
Fingerprint: `BD56 2147 9E7B 74D3 6A40 5BE8 007F 8412 0107 191E` \
|
||||
Email: `Hardcore Sushi <hardcore.sushi@disroot.org>`
|
||||
|
||||
Once imported:
|
||||
|
||||
```bash
|
||||
git clone --depth=1 https://forge.chapril.org/hardcoresushi/doby.git
|
||||
cd doby
|
||||
git verify-commit HEAD
|
||||
cargo build --release #outputs to ./target/release/doby
|
||||
```
|
||||
|
||||
## Cryptographic details
|
||||
|
||||
### Encryption
|
||||
|
||||
doby first derives your password with Argon2 (version 19) in Argon2id mode with a 64 bytes long random salt. A `master_key` of 32 bytes is thus generated.
|
||||
|
||||
```rust
|
||||
let master_key: [u8; 32] = argon2id(
|
||||
password,
|
||||
random_password_salt,
|
||||
argon2_time_cost,
|
||||
argon2_memory_cost,
|
||||
argon2_parallelism,
|
||||
);
|
||||
```
|
||||
|
||||
Then, doby uses [HKDF](https://en.wikipedia.org/wiki/HKDF) with a new random salt to compute the `encryption_key` and the `authentication_key`.
|
||||
|
||||
```rust
|
||||
let hkdf = Hkdf::new(
|
||||
random_hkdf_salt,
|
||||
master_key, //ikm
|
||||
blake3, //hash function
|
||||
);
|
||||
let encryption_key: [u8; 32] = hkdf.expand(b"doby_encryption_key");
|
||||
let authentication_key: [u8; 32] = hkdf.expand(b"doby_authentication_key");
|
||||
```
|
||||
|
||||
Next, doby initializes a [BLAKE3](https://en.wikipedia.org/wiki/BLAKE_%28hash_function%29#BLAKE3) HMAC with `authentication_key` and add all public encryption parameters to it.
|
||||
|
||||
```rust
|
||||
let hmac = Hmac::new(
|
||||
authentication_key,
|
||||
blake3, //hash function
|
||||
);
|
||||
hmac.update(random_password_salt);
|
||||
hmac.update(argon2_time_cost);
|
||||
hmac.update(argon2_memory_cost);
|
||||
hmac.update(argon2_parallelism);
|
||||
hmac.update(random_hkdf_salt);
|
||||
hmac.update(random_nonce); //16 bytes random nonce used in AES-CTR cipher
|
||||
```
|
||||
|
||||
All this parameters are also written in plain text in the header of the doby output.
|
||||
|
||||
Now, doby initializes an AES-CTR cipher with `encryption_key` and `random_nonce` and starts the actual encryption. It reads chunks from the plaintext (according to the `--block-size` parameter), encrypts them with the cipher and updates the HMAC with the ciphertext.
|
||||
|
||||
```rust
|
||||
let cipher = Aes256Ctr::new(encryption_key, random_nonce);
|
||||
let mut n = 1;
|
||||
let mut chunk: [u8; block_size] = [0; block_size];
|
||||
while n != 0 {
|
||||
n = input.read(&mut chunk); //read plaintext
|
||||
cipher.apply_keystream(&mut chunk[..n]); //encrypt
|
||||
hmac.update(chunk[..n]);
|
||||
output.write(chunk[..n]); //write ciphertext
|
||||
}
|
||||
```
|
||||
|
||||
Once the whole plaintext is encrypted, doby computes and appends the HMAC to the ciphertext.
|
||||
|
||||
```rust
|
||||
output.write(hmac.digest());
|
||||
```
|
||||
|
||||
### Decryption
|
||||
|
||||
doby reads the public encryption values from the input header to get all parameters needed to re-derive the `master_key` from the password with Argon2.
|
||||
|
||||
```rust
|
||||
let master_key: [u8; 32] = argon2id(
|
||||
password,
|
||||
password_salt_read_from_input,
|
||||
argon2_time_cost_read_from_input,
|
||||
argon2_memory_cost_read_from_input,
|
||||
argon2_parallelism_read_from_input,
|
||||
);
|
||||
```
|
||||
|
||||
`encryption_key` and `authentication_key` are computed from `master_key` and the HKDF salt in the same way as during encryption. The HMAC is also initialized and updated with the values read from the header.
|
||||
|
||||
Then, doby starts decryption.
|
||||
|
||||
```rust
|
||||
let cipher = Aes256Ctr::new(encryption_key, nonce_read_from_input);
|
||||
let mut n = 1;
|
||||
let mut chunk: [u8; block_size] = [0; block_size];
|
||||
while n != 0 {
|
||||
n = input.read(&mut chunk); //read ciphertext
|
||||
hmac.update(chunk[..n]);
|
||||
cipher.apply_keystream(&mut chunk[..n]); //decrypt
|
||||
output.write(chunk[..n]); //write plaintext
|
||||
}
|
||||
```
|
||||
|
||||
Once the whole ciphertext is decrypted, doby computes and verifies the HMAC.
|
||||
|
||||
```rust
|
||||
hmac.digest() == last_32_bytes_read
|
||||
```
|
||||
|
||||
If the verification success, the file is successfully decrypted and authenticated.
|
||||
|
||||
_If you find any weakness or security issue is this protocol, please open an issue._
|
||||
84
src/bin/blocksize.rs
Normal file
84
src/bin/blocksize.rs
Normal file
@ -0,0 +1,84 @@
|
||||
use std::{
|
||||
io::{self, BufWriter, BufReader, Write, Seek, SeekFrom},
|
||||
time::Instant,
|
||||
env,
|
||||
fs::{File, OpenOptions}
|
||||
};
|
||||
use doby::{
|
||||
encrypt, decrypt,
|
||||
crypto::{ArgonParams, EncryptionParams, Cipher}
|
||||
};
|
||||
|
||||
const MAX_BLOCK_SIZE: usize = 1_073_741_824; //1GB
|
||||
const PASSWORD: &[u8] = b"HARDCORE music is the best music of all time";
|
||||
|
||||
fn set_if_better(best_time: &mut Option<u128>, time: u128, best_block_size: &mut Option<usize>, block_size: usize) {
|
||||
let mut better = true;
|
||||
if let Some(best_time) = best_time {
|
||||
better = time < *best_time;
|
||||
}
|
||||
if better {
|
||||
*best_time = Some(time);
|
||||
*best_block_size = Some(block_size);
|
||||
}
|
||||
}
|
||||
|
||||
fn reset<I: Seek>(i: &mut I) -> io::Result<u64> {
|
||||
i.seek(SeekFrom::Start(0))
|
||||
}
|
||||
|
||||
fn main() -> io::Result<()> {
|
||||
let args: Vec<String> = env::args().collect();
|
||||
|
||||
let input = File::open(&args[1])?;
|
||||
let output = OpenOptions::new().create(true).truncate(true).write(true).open(&args[2])?;
|
||||
|
||||
let params = EncryptionParams::new(ArgonParams{
|
||||
t_cost: 1,
|
||||
m_cost: 8,
|
||||
parallelism: 1,
|
||||
});
|
||||
|
||||
let mut best_encrypt_time = None;
|
||||
let mut best_encrypt_block_size = None;
|
||||
let mut best_decrypt_time = None;
|
||||
let mut best_decrypt_block_size = None;
|
||||
|
||||
let mut block_size = 1024;
|
||||
while block_size <= MAX_BLOCK_SIZE {
|
||||
let mut reader = BufReader::with_capacity(block_size, &input);
|
||||
let mut writer = BufWriter::with_capacity(block_size, &output);
|
||||
|
||||
let cipher = Cipher::new(PASSWORD, ¶ms).unwrap();
|
||||
let t_encrypt = Instant::now();
|
||||
encrypt(&mut reader, &mut writer, ¶ms, cipher, block_size, None)?;
|
||||
writer.flush()?;
|
||||
let encrypt_time = t_encrypt.elapsed().as_millis();
|
||||
println!("Encrypted in {}ms with block size of {}B", encrypt_time, block_size);
|
||||
set_if_better(&mut best_encrypt_time, encrypt_time, &mut best_encrypt_block_size, block_size);
|
||||
reset(&mut reader)?;
|
||||
reset(&mut writer)?;
|
||||
|
||||
let cipher = Cipher::new(PASSWORD, ¶ms).unwrap();
|
||||
let t_decrypt = Instant::now();
|
||||
decrypt(&mut reader, &mut writer, cipher, block_size)?;
|
||||
writer.flush()?;
|
||||
let decrypt_time = t_decrypt.elapsed().as_millis();
|
||||
println!("Decrypted in {}ms with block size of {}B", decrypt_time, block_size);
|
||||
set_if_better(&mut best_decrypt_time, decrypt_time, &mut best_decrypt_block_size, block_size);
|
||||
reset(&mut reader)?;
|
||||
reset(&mut writer)?;
|
||||
|
||||
block_size *= 2;
|
||||
}
|
||||
|
||||
println!("
|
||||
Best block size for encryption: {}B
|
||||
Time: {}ms
|
||||
|
||||
Best block size for decryption: {}B
|
||||
Time: {}ms
|
||||
", best_encrypt_block_size.unwrap(), best_encrypt_time.unwrap(), best_decrypt_block_size.unwrap(), best_decrypt_time.unwrap());
|
||||
|
||||
Ok(())
|
||||
}
|
||||
125
src/cli.rs
Normal file
125
src/cli.rs
Normal file
@ -0,0 +1,125 @@
|
||||
use std::{
|
||||
path::Path,
|
||||
fs::File,
|
||||
str::FromStr,
|
||||
io::{stdin, stdout, Read, Write},
|
||||
};
|
||||
use clap::{crate_name, crate_version, App, Arg};
|
||||
use crate::crypto::ArgonParams;
|
||||
|
||||
pub struct CliArgs {
|
||||
pub password: String,
|
||||
pub force_encrypt: bool,
|
||||
pub argon2_params: ArgonParams,
|
||||
pub block_size: usize,
|
||||
pub reader: Box<dyn Read>,
|
||||
pub writer: Box<dyn Write>,
|
||||
}
|
||||
|
||||
pub fn parse() -> Option<CliArgs> {
|
||||
let app = App::new(crate_name!())
|
||||
.version(crate_version!())
|
||||
.arg(Arg::with_name("INPUT").help("<PATH> | \"-\" or empty for stdin"))
|
||||
.arg(Arg::with_name("OUTPUT").help("<PATH> | \"-\" or empty for stdout"))
|
||||
.arg(
|
||||
Arg::with_name("force-encrypt")
|
||||
.short("f")
|
||||
.long("force-encrypt")
|
||||
.help(&format!("Encrypt even if {} format is recognized", crate_name!()))
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name("password")
|
||||
.short("p")
|
||||
.long("password")
|
||||
.value_name("password")
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name("t_cost")
|
||||
.short("i")
|
||||
.long("iterations")
|
||||
.value_name("iterations")
|
||||
.help("Argon2 time cost")
|
||||
.default_value("10")
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name("m_cost")
|
||||
.short("m")
|
||||
.long("memory-cost")
|
||||
.value_name("memory cost")
|
||||
.help("Argon2 memory cost (in kilobytes)")
|
||||
.default_value("4096")
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name("parallelism")
|
||||
.short("t")
|
||||
.long("threads")
|
||||
.value_name("threads")
|
||||
.help("Argon2 parallelism (between 1 and 255)")
|
||||
.default_value("4")
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name("blocksize")
|
||||
.short("b")
|
||||
.long("block-size")
|
||||
.help("Size of file chunk (in bytes)")
|
||||
.default_value("65536")
|
||||
)
|
||||
.get_matches();
|
||||
|
||||
let params = {
|
||||
let t_cost = number(app.value_of("t_cost").unwrap())?;
|
||||
let m_cost = number(app.value_of("m_cost").unwrap())?;
|
||||
let parallelism = number(app.value_of("parallelism").unwrap())?;
|
||||
|
||||
ArgonParams {
|
||||
t_cost,
|
||||
m_cost,
|
||||
parallelism,
|
||||
}
|
||||
};
|
||||
|
||||
let block_size = number(app.value_of("blocksize").unwrap())?;
|
||||
|
||||
let input = app
|
||||
.value_of("INPUT")
|
||||
.and_then(|s| if s == "-" { None } else { Some(s) })
|
||||
.map(|s| Box::new(File::open(s).unwrap()) as Box<dyn Read>)
|
||||
.unwrap_or_else(|| Box::new(stdin()));
|
||||
|
||||
let output = app
|
||||
.value_of("OUTPUT")
|
||||
.and_then(|s| if s == "-" { None } else { Some(s) })
|
||||
.map(|s| {
|
||||
if Path::new(s).exists() {
|
||||
eprintln!("{} already exists", s);
|
||||
None
|
||||
} else {
|
||||
Some(Box::new(File::create(s).unwrap()) as Box<dyn Write>)
|
||||
}
|
||||
})
|
||||
.unwrap_or_else(|| Some(Box::new(stdout())));
|
||||
|
||||
let password = match app.value_of("password") {
|
||||
Some(s) => s.to_string(),
|
||||
None => rpassword::read_password_from_tty(Some("Password: ")).unwrap(),
|
||||
};
|
||||
|
||||
Some(CliArgs {
|
||||
password,
|
||||
force_encrypt: app.is_present("force-encrypt"),
|
||||
argon2_params: params,
|
||||
block_size,
|
||||
reader: input,
|
||||
writer: output?,
|
||||
})
|
||||
}
|
||||
|
||||
fn number<T: FromStr>(val: &str) -> Option<T> {
|
||||
match val.parse::<T>() {
|
||||
Ok(n) => Some(n),
|
||||
Err(_) => {
|
||||
eprintln!("Cannot parse '{}' to '{}'", val, std::any::type_name::<T>());
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
146
src/crypto.rs
Normal file
146
src/crypto.rs
Normal file
@ -0,0 +1,146 @@
|
||||
use std::io::{self, Read, Write};
|
||||
use aes::{Aes256Ctr, cipher::{NewCipher, StreamCipher}};
|
||||
use hmac::{Hmac, Mac, NewMac};
|
||||
use rand::{Rng, rngs::OsRng};
|
||||
use argon2::{Argon2, Version, Algorithm};
|
||||
use hkdf::Hkdf;
|
||||
use zeroize::Zeroize;
|
||||
|
||||
const SALT_LEN: usize = 64;
|
||||
const NONCE_LEN: usize = 16;
|
||||
const HASH_LEN: usize = 32;
|
||||
const KEY_LEN: usize = HASH_LEN;
|
||||
|
||||
pub struct ArgonParams {
|
||||
pub t_cost: u32,
|
||||
pub m_cost: u32,
|
||||
pub parallelism: u8,
|
||||
}
|
||||
|
||||
pub struct EncryptionParams {
|
||||
password_salt: [u8; SALT_LEN],
|
||||
argon2: ArgonParams,
|
||||
hkdf_salt: [u8; SALT_LEN],
|
||||
nonce: [u8; NONCE_LEN],
|
||||
}
|
||||
|
||||
impl EncryptionParams {
|
||||
const PARAMS_LEN: usize = SALT_LEN*2 + 4*2 + 1 + NONCE_LEN;
|
||||
|
||||
pub fn new(argon2_params: ArgonParams) -> EncryptionParams {
|
||||
let mut password_salt = [0; SALT_LEN];
|
||||
OsRng.fill(&mut password_salt);
|
||||
let mut hkdf_salt = [0; SALT_LEN];
|
||||
OsRng.fill(&mut hkdf_salt);
|
||||
let mut nonce = [0; NONCE_LEN];
|
||||
OsRng.fill(&mut nonce);
|
||||
EncryptionParams {
|
||||
password_salt,
|
||||
argon2: argon2_params,
|
||||
hkdf_salt,
|
||||
nonce,
|
||||
}
|
||||
}
|
||||
pub fn write<W: Write>(&self, writer: &mut W) -> io::Result<()> {
|
||||
writer.write_all(&self.password_salt)?;
|
||||
writer.write_all(&self.argon2.t_cost.to_be_bytes())?;
|
||||
writer.write_all(&self.argon2.m_cost.to_be_bytes())?;
|
||||
writer.write_all(&self.argon2.parallelism.to_be_bytes())?;
|
||||
writer.write_all(&self.hkdf_salt)?;
|
||||
writer.write_all(&self.nonce)?;
|
||||
Ok(())
|
||||
}
|
||||
pub fn read<R: Read>(reader: &mut R) -> io::Result<Self> {
|
||||
let mut password_salt = [0; SALT_LEN];
|
||||
reader.read_exact(&mut password_salt)?;
|
||||
let mut t_cost_buf = [0; 4];
|
||||
reader.read_exact(&mut t_cost_buf)?;
|
||||
let mut m_cost_buf = [0; 4];
|
||||
reader.read_exact(&mut m_cost_buf)?;
|
||||
let mut parallelism_buf = [0; 1];
|
||||
reader.read_exact(&mut parallelism_buf)?;
|
||||
let mut hkdf_salt = [0; SALT_LEN];
|
||||
reader.read_exact(&mut hkdf_salt)?;
|
||||
let mut nonce = [0; NONCE_LEN];
|
||||
reader.read_exact(&mut nonce)?;
|
||||
|
||||
let argon2_params = ArgonParams {
|
||||
t_cost: u32::from_be_bytes(t_cost_buf),
|
||||
m_cost: u32::from_be_bytes(m_cost_buf),
|
||||
parallelism: u8::from_be_bytes(parallelism_buf),
|
||||
};
|
||||
|
||||
Ok(EncryptionParams {
|
||||
password_salt,
|
||||
argon2: argon2_params,
|
||||
hkdf_salt,
|
||||
nonce,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Cipher {
|
||||
cipher: Aes256Ctr,
|
||||
hmac: Hmac<blake3::Hasher>,
|
||||
buffer: Vec<u8>,
|
||||
}
|
||||
|
||||
impl Cipher {
|
||||
pub fn new(password: &[u8], params: &EncryptionParams) -> Result<Self, argon2::Error> {
|
||||
|
||||
let argon = Argon2::new(None, params.argon2.t_cost, params.argon2.m_cost, params.argon2.parallelism.into(), Version::V0x13)?;
|
||||
let mut master_key = [0; KEY_LEN];
|
||||
argon.hash_password_into(Algorithm::Argon2id, password, ¶ms.password_salt, &[], &mut master_key)?;
|
||||
|
||||
let hkdf = Hkdf::<blake3::Hasher>::new(Some(¶ms.hkdf_salt), &master_key);
|
||||
let mut encryption_key = [0; KEY_LEN];
|
||||
hkdf.expand(b"doby_encryption_key", &mut encryption_key).unwrap();
|
||||
let mut authentication_key = [0; KEY_LEN];
|
||||
hkdf.expand(b"doby_authentication_key", &mut authentication_key).unwrap();
|
||||
master_key.zeroize();
|
||||
|
||||
let mut encoded_params = Vec::with_capacity(EncryptionParams::PARAMS_LEN);
|
||||
params.write(&mut encoded_params).unwrap();
|
||||
let mut hmac = Hmac::new_from_slice(&authentication_key).unwrap();
|
||||
hmac.update(&encoded_params);
|
||||
|
||||
Ok(Cipher {
|
||||
cipher: Aes256Ctr::new_from_slices(&encryption_key, ¶ms.nonce).unwrap(),
|
||||
hmac,
|
||||
buffer: Vec::new(),
|
||||
})
|
||||
}
|
||||
|
||||
pub fn encrypt_chunk<W: Write>(&mut self, buff: &mut [u8], writer: &mut W) -> io::Result<()> {
|
||||
self.cipher.apply_keystream(buff);
|
||||
self.hmac.update(buff);
|
||||
writer.write_all(buff)
|
||||
}
|
||||
|
||||
pub fn write_hmac<W: Write>(self, writer: &mut W) -> io::Result<usize> {
|
||||
let tag = self.hmac.finalize().into_bytes();
|
||||
writer.write(&tag)
|
||||
}
|
||||
|
||||
pub fn decrypt_chunk<R: Read>(&mut self, reader: &mut R, buff: &mut [u8]) -> io::Result<usize> {
|
||||
let buffer_len = self.buffer.len();
|
||||
buff[..buffer_len].clone_from_slice(&self.buffer);
|
||||
let read = reader.read(&mut buff[buffer_len..])?;
|
||||
|
||||
self.buffer.clear();
|
||||
let n = if buffer_len + read >= HASH_LEN {
|
||||
buffer_len + read - HASH_LEN
|
||||
} else {
|
||||
0
|
||||
};
|
||||
self.buffer.extend_from_slice(&buff[n..buffer_len+read]);
|
||||
|
||||
self.hmac.update(&buff[..n]);
|
||||
self.cipher.apply_keystream(&mut buff[..n]);
|
||||
Ok(n)
|
||||
}
|
||||
|
||||
pub fn verify_hmac(self) -> bool {
|
||||
self.hmac.verify(&self.buffer).is_ok()
|
||||
}
|
||||
}
|
||||
44
src/lib.rs
Normal file
44
src/lib.rs
Normal file
@ -0,0 +1,44 @@
|
||||
pub mod cli;
|
||||
pub mod crypto;
|
||||
|
||||
use std::io::{self, Read, Write};
|
||||
use crypto::{Cipher, EncryptionParams};
|
||||
|
||||
pub const MAGIC_BYTES: &[u8; 4] = b"DOBY";
|
||||
|
||||
pub fn encrypt<R: Read, W: Write>(reader: &mut R, writer: &mut W, params: &EncryptionParams, mut cipher: Cipher, block_size: usize, already_read: Option<Vec<u8>>) -> io::Result<()> {
|
||||
writer.write_all(MAGIC_BYTES)?;
|
||||
params.write(writer)?;
|
||||
let mut buff = vec![0; block_size];
|
||||
let mut n = 1;
|
||||
if let Some(already_read) = already_read {
|
||||
buff[..already_read.len()].clone_from_slice(&already_read);
|
||||
n = reader.read(&mut buff[already_read.len()..])?;
|
||||
cipher.encrypt_chunk(&mut buff[..n+already_read.len()], writer)?;
|
||||
}
|
||||
if n > 0 {
|
||||
loop {
|
||||
n = reader.read(&mut buff)?;
|
||||
if n == 0 {
|
||||
break;
|
||||
} else {
|
||||
cipher.encrypt_chunk(&mut buff[..n], writer)?;
|
||||
}
|
||||
}
|
||||
cipher.write_hmac(writer)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn decrypt<R: Read, W: Write>(reader: &mut R, writer: &mut W, mut cipher: Cipher, block_size: usize) -> io::Result<bool> {
|
||||
let mut buff = vec![0; block_size];
|
||||
loop {
|
||||
let n = cipher.decrypt_chunk(reader, &mut buff)?;
|
||||
if n == 0 {
|
||||
break;
|
||||
} else {
|
||||
writer.write(&buff[..n])?;
|
||||
}
|
||||
}
|
||||
Ok(cipher.verify_hmac())
|
||||
}
|
||||
64
src/main.rs
Normal file
64
src/main.rs
Normal file
@ -0,0 +1,64 @@
|
||||
use std::io::{BufWriter, BufReader, Read};
|
||||
use zeroize::Zeroize;
|
||||
use doby::{
|
||||
cli,
|
||||
crypto::{EncryptionParams, Cipher},
|
||||
MAGIC_BYTES,
|
||||
decrypt,
|
||||
encrypt,
|
||||
};
|
||||
|
||||
fn main() {
|
||||
if let Some(mut cli_args) = cli::parse() {
|
||||
let mut reader = BufReader::with_capacity(cli_args.block_size, cli_args.reader);
|
||||
let mut writer = BufWriter::with_capacity(cli_args.block_size, cli_args.writer);
|
||||
|
||||
let mut magic_bytes = vec![0; MAGIC_BYTES.len()];
|
||||
match reader.read(&mut magic_bytes) {
|
||||
Ok(n) => {
|
||||
if n < magic_bytes.len() {
|
||||
magic_bytes.truncate(n);
|
||||
}
|
||||
if magic_bytes == MAGIC_BYTES && !cli_args.force_encrypt { //we probably want to decrypt
|
||||
match EncryptionParams::read(&mut reader) {
|
||||
Ok(params) => {
|
||||
match Cipher::new(cli_args.password.as_bytes(), ¶ms) {
|
||||
Ok(cipher) => {
|
||||
match decrypt(&mut reader, &mut writer, cipher, cli_args.block_size) {
|
||||
Ok(verified) => {
|
||||
if !verified {
|
||||
eprintln!("WARNING: HMAC verification failed !\nEither your password is incorrect or the file has been corrupted.\nOpen with caution, it could have been infected by an attacker.");
|
||||
}
|
||||
}
|
||||
Err(e) => eprintln!("I/O error while decrypting: {}", e)
|
||||
}
|
||||
}
|
||||
Err(e) => eprintln!("Invalid argon2 params: {}", e)
|
||||
}
|
||||
}
|
||||
Err(e) => eprintln!("I/O error while reading headers: {}", e)
|
||||
}
|
||||
} else { //otherwise, encrypt
|
||||
let params = EncryptionParams::new(cli_args.argon2_params);
|
||||
match Cipher::new(cli_args.password.as_bytes(), ¶ms) {
|
||||
Ok(cipher) => {
|
||||
if let Err(e) = encrypt(
|
||||
&mut reader,
|
||||
&mut writer,
|
||||
¶ms,
|
||||
cipher,
|
||||
cli_args.block_size,
|
||||
Some(magic_bytes)
|
||||
) {
|
||||
eprintln!("I/O error while encrypting: {}", e);
|
||||
}
|
||||
}
|
||||
Err(e) => eprintln!("Invalid argon2 params: {}", e)
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => eprintln!("I/O error while reading magic bytes: {}", e),
|
||||
}
|
||||
cli_args.password.zeroize();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user