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authorMalfurious <m@lfurio.us>2024-10-21 11:09:00 -0400
committerMalfurious <m@lfurio.us>2024-10-24 06:41:41 -0400
commit5494fc310acf0aabb9d828451331e44483eb21c7 (patch)
tree77280a586d52470fca89b9ed73f5f1faaf7907c6 /cryptopp562/ccm.cpp
parent428471d39fb8c205a9fad899c88c30a2cb7df685 (diff)
downloadcompass-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 'cryptopp562/ccm.cpp')
-rw-r--r--cryptopp562/ccm.cpp140
1 files changed, 0 insertions, 140 deletions
diff --git a/cryptopp562/ccm.cpp b/cryptopp562/ccm.cpp
deleted file mode 100644
index 0368787..0000000
--- a/cryptopp562/ccm.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-// ccm.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "ccm.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void CCM_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params)
-{
- BlockCipher &blockCipher = AccessBlockCipher();
-
- blockCipher.SetKey(userKey, keylength, params);
-
- if (blockCipher.BlockSize() != REQUIRED_BLOCKSIZE)
- throw InvalidArgument(AlgorithmName() + ": block size of underlying block cipher is not 16");
-
- m_digestSize = params.GetIntValueWithDefault(Name::DigestSize(), DefaultDigestSize());
- if (m_digestSize % 2 > 0 || m_digestSize < 4 || m_digestSize > 16)
- throw InvalidArgument(AlgorithmName() + ": DigestSize must be 4, 6, 8, 10, 12, 14, or 16");
-
- m_buffer.Grow(2*REQUIRED_BLOCKSIZE);
- m_L = 8;
-}
-
-void CCM_Base::Resync(const byte *iv, size_t len)
-{
- BlockCipher &cipher = AccessBlockCipher();
-
- m_L = REQUIRED_BLOCKSIZE-1-(int)len;
- assert(m_L >= 2);
- if (m_L > 8)
- m_L = 8;
-
- m_buffer[0] = byte(m_L-1); // flag
- memcpy(m_buffer+1, iv, len);
- memset(m_buffer+1+len, 0, REQUIRED_BLOCKSIZE-1-len);
-
- if (m_state >= State_IVSet)
- m_ctr.Resynchronize(m_buffer, REQUIRED_BLOCKSIZE);
- else
- m_ctr.SetCipherWithIV(cipher, m_buffer);
-
- m_ctr.Seek(REQUIRED_BLOCKSIZE);
- m_aadLength = 0;
- m_messageLength = 0;
-}
-
-void CCM_Base::UncheckedSpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength)
-{
- if (m_state != State_IVSet)
- throw BadState(AlgorithmName(), "SpecifyDataLengths", "or after State_IVSet");
-
- m_aadLength = headerLength;
- m_messageLength = messageLength;
-
- byte *cbcBuffer = CBC_Buffer();
- const BlockCipher &cipher = GetBlockCipher();
-
- cbcBuffer[0] = byte(64*(headerLength>0) + 8*((m_digestSize-2)/2) + (m_L-1)); // flag
- PutWord<word64>(true, BIG_ENDIAN_ORDER, cbcBuffer+REQUIRED_BLOCKSIZE-8, m_messageLength);
- memcpy(cbcBuffer+1, m_buffer+1, REQUIRED_BLOCKSIZE-1-m_L);
- cipher.ProcessBlock(cbcBuffer);
-
- if (headerLength>0)
- {
- assert(m_bufferedDataLength == 0);
-
- if (headerLength < ((1<<16) - (1<<8)))
- {
- PutWord<word16>(true, BIG_ENDIAN_ORDER, m_buffer, (word16)headerLength);
- m_bufferedDataLength = 2;
- }
- else if (headerLength < (W64LIT(1)<<32))
- {
- m_buffer[0] = 0xff;
- m_buffer[1] = 0xfe;
- PutWord<word32>(false, BIG_ENDIAN_ORDER, m_buffer+2, (word32)headerLength);
- m_bufferedDataLength = 6;
- }
- else
- {
- m_buffer[0] = 0xff;
- m_buffer[1] = 0xff;
- PutWord<word64>(false, BIG_ENDIAN_ORDER, m_buffer+2, headerLength);
- m_bufferedDataLength = 10;
- }
- }
-}
-
-size_t CCM_Base::AuthenticateBlocks(const byte *data, size_t len)
-{
- byte *cbcBuffer = CBC_Buffer();
- const BlockCipher &cipher = GetBlockCipher();
- return cipher.AdvancedProcessBlocks(cbcBuffer, data, cbcBuffer, len, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
-}
-
-void CCM_Base::AuthenticateLastHeaderBlock()
-{
- byte *cbcBuffer = CBC_Buffer();
- const BlockCipher &cipher = GetBlockCipher();
-
- if (m_aadLength != m_totalHeaderLength)
- throw InvalidArgument(AlgorithmName() + ": header length doesn't match that given in SpecifyDataLengths");
-
- if (m_bufferedDataLength > 0)
- {
- xorbuf(cbcBuffer, m_buffer, m_bufferedDataLength);
- cipher.ProcessBlock(cbcBuffer);
- m_bufferedDataLength = 0;
- }
-}
-
-void CCM_Base::AuthenticateLastConfidentialBlock()
-{
- byte *cbcBuffer = CBC_Buffer();
- const BlockCipher &cipher = GetBlockCipher();
-
- if (m_messageLength != m_totalMessageLength)
- throw InvalidArgument(AlgorithmName() + ": message length doesn't match that given in SpecifyDataLengths");
-
- if (m_bufferedDataLength > 0)
- {
- xorbuf(cbcBuffer, m_buffer, m_bufferedDataLength);
- cipher.ProcessBlock(cbcBuffer);
- m_bufferedDataLength = 0;
- }
-}
-
-void CCM_Base::AuthenticateLastFooterBlock(byte *mac, size_t macSize)
-{
- m_ctr.Seek(0);
- m_ctr.ProcessData(mac, CBC_Buffer(), macSize);
-}
-
-NAMESPACE_END
-
-#endif