43 lines
838 B
Go
43 lines
838 B
Go
//go:build !without_openssl
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// +build !without_openssl
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package stupidgcm
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// #include <openssl/evp.h>
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import "C"
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import (
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"crypto/cipher"
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"log"
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)
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const (
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// BuiltWithoutOpenssl indicates if openssl been disabled at compile-time
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BuiltWithoutOpenssl = false
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keyLen = 32
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ivLen = 16
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tagLen = 16
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)
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type stupidGCM struct {
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stupidAEADCommon
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}
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// NewAES256GCM returns a new AES-256-GCM cipher that satisfies the cipher.AEAD interface.
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//
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// Only 32-bytes keys and 16-byte IVs are supported.
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func NewAES256GCM(keyIn []byte) cipher.AEAD {
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if len(keyIn) != keyLen {
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log.Panicf("Only %d-byte keys are supported", keyLen)
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}
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return &stupidGCM{
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stupidAEADCommon{
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// Create a private copy of the key
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key: append([]byte{}, keyIn...),
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openSSLEVPCipher: C.EVP_aes_256_gcm(),
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nonceSize: ivLen,
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},
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}
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}
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