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author | Malfurious <m@lfurio.us> | 2024-10-21 11:09:00 -0400 |
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committer | Malfurious <m@lfurio.us> | 2024-10-24 06:41:41 -0400 |
commit | 5494fc310acf0aabb9d828451331e44483eb21c7 (patch) | |
tree | 77280a586d52470fca89b9ed73f5f1faaf7907c6 /cryptopp562/strciphr.cpp | |
parent | 428471d39fb8c205a9fad899c88c30a2cb7df685 (diff) | |
download | compass-5494fc310acf0aabb9d828451331e44483eb21c7.tar.gz compass-5494fc310acf0aabb9d828451331e44483eb21c7.zip |
Remove Crypto++ library
The tracked version of Crypto++ is going on 10 years old and doesn't
always compile properly on modern tooling.
This removes the entire subdirectory as well as references to files in
the build script. Due to the number of files touched by this commit, I
opt to add its replacement in the next commit.
Signed-off-by: Malfurious <m@lfurio.us>
Diffstat (limited to '')
-rw-r--r-- | cryptopp562/strciphr.cpp | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/cryptopp562/strciphr.cpp b/cryptopp562/strciphr.cpp deleted file mode 100644 index 53e0073..0000000 --- a/cryptopp562/strciphr.cpp +++ /dev/null @@ -1,252 +0,0 @@ -// strciphr.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "strciphr.h" - -NAMESPACE_BEGIN(CryptoPP) - -template <class S> -void AdditiveCipherTemplate<S>::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms) -{ - PolicyInterface &policy = this->AccessPolicy(); - policy.CipherSetKey(params, key, length); - m_leftOver = 0; - unsigned int bufferByteSize = policy.CanOperateKeystream() ? GetBufferByteSize(policy) : RoundUpToMultipleOf(1024U, GetBufferByteSize(policy)); - m_buffer.New(bufferByteSize); - - if (this->IsResynchronizable()) - { - size_t ivLength; - const byte *iv = this->GetIVAndThrowIfInvalid(params, ivLength); - policy.CipherResynchronize(m_buffer, iv, ivLength); - } -} - -template <class S> -void AdditiveCipherTemplate<S>::GenerateBlock(byte *outString, size_t length) -{ - if (m_leftOver > 0) - { - size_t len = STDMIN(m_leftOver, length); - memcpy(outString, KeystreamBufferEnd()-m_leftOver, len); - length -= len; - m_leftOver -= len; - outString += len; - - if (!length) - return; - } - assert(m_leftOver == 0); - - PolicyInterface &policy = this->AccessPolicy(); - unsigned int bytesPerIteration = policy.GetBytesPerIteration(); - - if (length >= bytesPerIteration) - { - size_t iterations = length / bytesPerIteration; - policy.WriteKeystream(outString, iterations); - outString += iterations * bytesPerIteration; - length -= iterations * bytesPerIteration; - } - - if (length > 0) - { - size_t bufferByteSize = RoundUpToMultipleOf(length, bytesPerIteration); - size_t bufferIterations = bufferByteSize / bytesPerIteration; - - policy.WriteKeystream(KeystreamBufferEnd()-bufferByteSize, bufferIterations); - memcpy(outString, KeystreamBufferEnd()-bufferByteSize, length); - m_leftOver = bufferByteSize - length; - } -} - -template <class S> -void AdditiveCipherTemplate<S>::ProcessData(byte *outString, const byte *inString, size_t length) -{ - if (m_leftOver > 0) - { - size_t len = STDMIN(m_leftOver, length); - xorbuf(outString, inString, KeystreamBufferEnd()-m_leftOver, len); - length -= len; - m_leftOver -= len; - inString += len; - outString += len; - - if (!length) - return; - } - assert(m_leftOver == 0); - - PolicyInterface &policy = this->AccessPolicy(); - unsigned int bytesPerIteration = policy.GetBytesPerIteration(); - - if (policy.CanOperateKeystream() && length >= bytesPerIteration) - { - size_t iterations = length / bytesPerIteration; - unsigned int alignment = policy.GetAlignment(); - KeystreamOperation operation = KeystreamOperation((IsAlignedOn(inString, alignment) * 2) | (int)IsAlignedOn(outString, alignment)); - - policy.OperateKeystream(operation, outString, inString, iterations); - - inString += iterations * bytesPerIteration; - outString += iterations * bytesPerIteration; - length -= iterations * bytesPerIteration; - - if (!length) - return; - } - - size_t bufferByteSize = m_buffer.size(); - size_t bufferIterations = bufferByteSize / bytesPerIteration; - - while (length >= bufferByteSize) - { - policy.WriteKeystream(m_buffer, bufferIterations); - xorbuf(outString, inString, KeystreamBufferBegin(), bufferByteSize); - length -= bufferByteSize; - inString += bufferByteSize; - outString += bufferByteSize; - } - - if (length > 0) - { - bufferByteSize = RoundUpToMultipleOf(length, bytesPerIteration); - bufferIterations = bufferByteSize / bytesPerIteration; - - policy.WriteKeystream(KeystreamBufferEnd()-bufferByteSize, bufferIterations); - xorbuf(outString, inString, KeystreamBufferEnd()-bufferByteSize, length); - m_leftOver = bufferByteSize - length; - } -} - -template <class S> -void AdditiveCipherTemplate<S>::Resynchronize(const byte *iv, int length) -{ - PolicyInterface &policy = this->AccessPolicy(); - m_leftOver = 0; - m_buffer.New(GetBufferByteSize(policy)); - policy.CipherResynchronize(m_buffer, iv, this->ThrowIfInvalidIVLength(length)); -} - -template <class BASE> -void AdditiveCipherTemplate<BASE>::Seek(lword position) -{ - PolicyInterface &policy = this->AccessPolicy(); - unsigned int bytesPerIteration = policy.GetBytesPerIteration(); - - policy.SeekToIteration(position / bytesPerIteration); - position %= bytesPerIteration; - - if (position > 0) - { - policy.WriteKeystream(KeystreamBufferEnd()-bytesPerIteration, 1); - m_leftOver = bytesPerIteration - (unsigned int)position; - } - else - m_leftOver = 0; -} - -template <class BASE> -void CFB_CipherTemplate<BASE>::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms) -{ - PolicyInterface &policy = this->AccessPolicy(); - policy.CipherSetKey(params, key, length); - - if (this->IsResynchronizable()) - { - size_t ivLength; - const byte *iv = this->GetIVAndThrowIfInvalid(params, ivLength); - policy.CipherResynchronize(iv, ivLength); - } - - m_leftOver = policy.GetBytesPerIteration(); -} - -template <class BASE> -void CFB_CipherTemplate<BASE>::Resynchronize(const byte *iv, int length) -{ - PolicyInterface &policy = this->AccessPolicy(); - policy.CipherResynchronize(iv, this->ThrowIfInvalidIVLength(length)); - m_leftOver = policy.GetBytesPerIteration(); -} - -template <class BASE> -void CFB_CipherTemplate<BASE>::ProcessData(byte *outString, const byte *inString, size_t length) -{ - assert(length % this->MandatoryBlockSize() == 0); - - PolicyInterface &policy = this->AccessPolicy(); - unsigned int bytesPerIteration = policy.GetBytesPerIteration(); - unsigned int alignment = policy.GetAlignment(); - byte *reg = policy.GetRegisterBegin(); - - if (m_leftOver) - { - size_t len = STDMIN(m_leftOver, length); - CombineMessageAndShiftRegister(outString, reg + bytesPerIteration - m_leftOver, inString, len); - m_leftOver -= len; - length -= len; - inString += len; - outString += len; - } - - if (!length) - return; - - assert(m_leftOver == 0); - - if (policy.CanIterate() && length >= bytesPerIteration && IsAlignedOn(outString, alignment)) - { - if (IsAlignedOn(inString, alignment)) - policy.Iterate(outString, inString, GetCipherDir(*this), length / bytesPerIteration); - else - { - memcpy(outString, inString, length); - policy.Iterate(outString, outString, GetCipherDir(*this), length / bytesPerIteration); - } - inString += length - length % bytesPerIteration; - outString += length - length % bytesPerIteration; - length %= bytesPerIteration; - } - - while (length >= bytesPerIteration) - { - policy.TransformRegister(); - CombineMessageAndShiftRegister(outString, reg, inString, bytesPerIteration); - length -= bytesPerIteration; - inString += bytesPerIteration; - outString += bytesPerIteration; - } - - if (length > 0) - { - policy.TransformRegister(); - CombineMessageAndShiftRegister(outString, reg, inString, length); - m_leftOver = bytesPerIteration - length; - } -} - -template <class BASE> -void CFB_EncryptionTemplate<BASE>::CombineMessageAndShiftRegister(byte *output, byte *reg, const byte *message, size_t length) -{ - xorbuf(reg, message, length); - memcpy(output, reg, length); -} - -template <class BASE> -void CFB_DecryptionTemplate<BASE>::CombineMessageAndShiftRegister(byte *output, byte *reg, const byte *message, size_t length) -{ - for (unsigned int i=0; i<length; i++) - { - byte b = message[i]; - output[i] = reg[i] ^ b; - reg[i] = b; - } -} - -NAMESPACE_END - -#endif |