36 lines
761 B
Go
36 lines
761 B
Go
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// +build !without_openssl
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package stupidgcm
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import (
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"crypto/cipher"
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"log"
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"golang.org/x/crypto/chacha20poly1305"
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)
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/*
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#include <openssl/evp.h>
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*/
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import "C"
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type stupidChacha20poly1305 struct {
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stupidAEADCommon
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}
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// Verify that we satisfy the cipher.AEAD interface
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var _ cipher.AEAD = &stupidChacha20poly1305{}
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func newChacha20poly1305(key []byte) *stupidChacha20poly1305 {
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if len(key) != chacha20poly1305.KeySize {
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log.Panicf("Only %d-byte keys are supported, you passed %d bytes", chacha20poly1305.KeySize, len(key))
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}
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return &stupidChacha20poly1305{
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stupidAEADCommon{
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key: append([]byte{}, key...), // private copy
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openSSLEVPCipher: C.EVP_chacha20_poly1305(),
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nonceSize: chacha20poly1305.NonceSize,
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},
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}
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}
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