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b902736621
f6ee177f7 Remove unused AES-128 code (practicalswift)
Pull request description:
Remove unused AES-128 code.
As far as I can tell this AES-128 code has never been in use in the project (outside of testing/benchmarking).
The AES-256 code is used in `CCrypter::Encrypt`/`CCrypter::Decrypt` (`src/wallet/crypter.cpp`).
Trivia: 0.15% of the project's C++ LOC count (excluding dependencies) is trimmed off:
```
$ LOC_BEFORE=$(git grep -I "" HEAD~1 -- "*.cpp" "*.h" ":(exclude)src/leveldb/" ":(exclude)src/secp256k1/" ":(exclude)src/univalue/" | wc -l)
$ LOC_AFTER=$(git grep -I "" -- "*.cpp" "*.h" ":(exclude)src/leveldb/" ":(exclude)src/secp256k1/" ":(exclude)src/univalue/" | wc -l)
$ bc <<< "scale=4; ${LOC_AFTER}/${LOC_BEFORE}"
.9985
```
:-)
Tree-SHA512: 9588a3cd795a89ef658b8ee7323865f57723cb4ed9560c21de793f82d35e2835059e7d6d0705e99e3d16bf6b2a444b4bf19568d50174ff3776caf8a3168f5c85
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
// Copyright (c) 2015 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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//
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// C++ wrapper around ctaes, a constant-time AES implementation
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#ifndef BITCOIN_CRYPTO_AES_H
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#define BITCOIN_CRYPTO_AES_H
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extern "C" {
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#include <crypto/ctaes/ctaes.h>
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}
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static const int AES_BLOCKSIZE = 16;
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static const int AES256_KEYSIZE = 32;
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/** An encryption class for AES-256. */
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class AES256Encrypt
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{
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private:
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AES256_ctx ctx;
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public:
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explicit AES256Encrypt(const unsigned char key[32]);
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~AES256Encrypt();
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void Encrypt(unsigned char ciphertext[16], const unsigned char plaintext[16]) const;
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};
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/** A decryption class for AES-256. */
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class AES256Decrypt
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{
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private:
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AES256_ctx ctx;
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public:
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explicit AES256Decrypt(const unsigned char key[32]);
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~AES256Decrypt();
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void Decrypt(unsigned char plaintext[16], const unsigned char ciphertext[16]) const;
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};
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class AES256CBCEncrypt
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{
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public:
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AES256CBCEncrypt(const unsigned char key[AES256_KEYSIZE], const unsigned char ivIn[AES_BLOCKSIZE], bool padIn);
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~AES256CBCEncrypt();
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int Encrypt(const unsigned char* data, int size, unsigned char* out) const;
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private:
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const AES256Encrypt enc;
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const bool pad;
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unsigned char iv[AES_BLOCKSIZE];
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};
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class AES256CBCDecrypt
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{
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public:
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AES256CBCDecrypt(const unsigned char key[AES256_KEYSIZE], const unsigned char ivIn[AES_BLOCKSIZE], bool padIn);
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~AES256CBCDecrypt();
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int Decrypt(const unsigned char* data, int size, unsigned char* out) const;
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private:
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const AES256Decrypt dec;
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const bool pad;
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unsigned char iv[AES_BLOCKSIZE];
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};
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#endif // BITCOIN_CRYPTO_AES_H
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