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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/pkcspad.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 'cryptopp562/pkcspad.cpp')
-rw-r--r-- | cryptopp562/pkcspad.cpp | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/cryptopp562/pkcspad.cpp b/cryptopp562/pkcspad.cpp deleted file mode 100644 index e1f1d1e..0000000 --- a/cryptopp562/pkcspad.cpp +++ /dev/null @@ -1,124 +0,0 @@ -// pkcspad.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" - -#ifndef CRYPTOPP_PKCSPAD_CPP // SunCC workaround: compiler could cause this file to be included twice -#define CRYPTOPP_PKCSPAD_CPP - -#include "pkcspad.h" -#include <assert.h> - -NAMESPACE_BEGIN(CryptoPP) - -// more in dll.cpp -template<> const byte PKCS_DigestDecoration<Weak1::MD2>::decoration[] = {0x30,0x20,0x30,0x0c,0x06,0x08,0x2a,0x86,0x48,0x86,0xf7,0x0d,0x02,0x02,0x05,0x00,0x04,0x10}; -template<> const unsigned int PKCS_DigestDecoration<Weak1::MD2>::length = sizeof(PKCS_DigestDecoration<Weak1::MD2>::decoration); - -template<> const byte PKCS_DigestDecoration<Weak1::MD5>::decoration[] = {0x30,0x20,0x30,0x0c,0x06,0x08,0x2a,0x86,0x48,0x86,0xf7,0x0d,0x02,0x05,0x05,0x00,0x04,0x10}; -template<> const unsigned int PKCS_DigestDecoration<Weak1::MD5>::length = sizeof(PKCS_DigestDecoration<Weak1::MD5>::decoration); - -template<> const byte PKCS_DigestDecoration<RIPEMD160>::decoration[] = {0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x24,0x03,0x02,0x01,0x05,0x00,0x04,0x14}; -template<> const unsigned int PKCS_DigestDecoration<RIPEMD160>::length = sizeof(PKCS_DigestDecoration<RIPEMD160>::decoration); - -template<> const byte PKCS_DigestDecoration<Tiger>::decoration[] = {0x30,0x29,0x30,0x0D,0x06,0x09,0x2B,0x06,0x01,0x04,0x01,0xDA,0x47,0x0C,0x02,0x05,0x00,0x04,0x18}; -template<> const unsigned int PKCS_DigestDecoration<Tiger>::length = sizeof(PKCS_DigestDecoration<Tiger>::decoration); - -size_t PKCS_EncryptionPaddingScheme::MaxUnpaddedLength(size_t paddedLength) const -{ - return SaturatingSubtract(paddedLength/8, 10U); -} - -void PKCS_EncryptionPaddingScheme::Pad(RandomNumberGenerator &rng, const byte *input, size_t inputLen, byte *pkcsBlock, size_t pkcsBlockLen, const NameValuePairs ¶meters) const -{ - assert (inputLen <= MaxUnpaddedLength(pkcsBlockLen)); // this should be checked by caller - - // convert from bit length to byte length - if (pkcsBlockLen % 8 != 0) - { - pkcsBlock[0] = 0; - pkcsBlock++; - } - pkcsBlockLen /= 8; - - pkcsBlock[0] = 2; // block type 2 - - // pad with non-zero random bytes - for (unsigned i = 1; i < pkcsBlockLen-inputLen-1; i++) - pkcsBlock[i] = (byte)rng.GenerateWord32(1, 0xff); - - pkcsBlock[pkcsBlockLen-inputLen-1] = 0; // separator - memcpy(pkcsBlock+pkcsBlockLen-inputLen, input, inputLen); -} - -DecodingResult PKCS_EncryptionPaddingScheme::Unpad(const byte *pkcsBlock, size_t pkcsBlockLen, byte *output, const NameValuePairs ¶meters) const -{ - bool invalid = false; - size_t maxOutputLen = MaxUnpaddedLength(pkcsBlockLen); - - // convert from bit length to byte length - if (pkcsBlockLen % 8 != 0) - { - invalid = (pkcsBlock[0] != 0) || invalid; - pkcsBlock++; - } - pkcsBlockLen /= 8; - - // Require block type 2. - invalid = (pkcsBlock[0] != 2) || invalid; - - // skip past the padding until we find the separator - size_t i=1; - while (i<pkcsBlockLen && pkcsBlock[i++]) { // null body - } - assert(i==pkcsBlockLen || pkcsBlock[i-1]==0); - - size_t outputLen = pkcsBlockLen - i; - invalid = (outputLen > maxOutputLen) || invalid; - - if (invalid) - return DecodingResult(); - - memcpy (output, pkcsBlock+i, outputLen); - return DecodingResult(outputLen); -} - -// ******************************************************** - -#ifndef CRYPTOPP_IMPORTS - -void PKCS1v15_SignatureMessageEncodingMethod::ComputeMessageRepresentative(RandomNumberGenerator &rng, - const byte *recoverableMessage, size_t recoverableMessageLength, - HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty, - byte *representative, size_t representativeBitLength) const -{ - assert(representativeBitLength >= MinRepresentativeBitLength(hashIdentifier.second, hash.DigestSize())); - - size_t pkcsBlockLen = representativeBitLength; - // convert from bit length to byte length - if (pkcsBlockLen % 8 != 0) - { - representative[0] = 0; - representative++; - } - pkcsBlockLen /= 8; - - representative[0] = 1; // block type 1 - - unsigned int digestSize = hash.DigestSize(); - byte *pPadding = representative + 1; - byte *pDigest = representative + pkcsBlockLen - digestSize; - byte *pHashId = pDigest - hashIdentifier.second; - byte *pSeparator = pHashId - 1; - - // pad with 0xff - memset(pPadding, 0xff, pSeparator-pPadding); - *pSeparator = 0; - memcpy(pHashId, hashIdentifier.first, hashIdentifier.second); - hash.Final(pDigest); -} - -#endif - -NAMESPACE_END - -#endif |