mirror of
https://github.com/nillerusr/source-engine.git
synced 2026-08-30 14:09:19 +00:00
update thirdparty, add build script
This commit is contained in:
Vendored
+59
-59
@@ -1,59 +1,59 @@
|
||||
// eax.cpp - originally written and placed in the public domain by Wei Dai
|
||||
|
||||
#include "pch.h"
|
||||
#include "eax.h"
|
||||
|
||||
NAMESPACE_BEGIN(CryptoPP)
|
||||
|
||||
void EAX_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms)
|
||||
{
|
||||
AccessMAC().SetKey(userKey, keylength, params);
|
||||
m_buffer.New(2*AccessMAC().TagSize());
|
||||
}
|
||||
|
||||
void EAX_Base::Resync(const byte *iv, size_t len)
|
||||
{
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
unsigned int blockSize = mac.TagSize();
|
||||
|
||||
memset(m_buffer, 0, blockSize);
|
||||
mac.Update(m_buffer, blockSize);
|
||||
mac.CalculateDigest(m_buffer+blockSize, iv, len);
|
||||
|
||||
m_buffer[blockSize-1] = 1;
|
||||
mac.Update(m_buffer, blockSize);
|
||||
|
||||
m_ctr.SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize);
|
||||
}
|
||||
|
||||
size_t EAX_Base::AuthenticateBlocks(const byte *data, size_t len)
|
||||
{
|
||||
AccessMAC().Update(data, len);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void EAX_Base::AuthenticateLastHeaderBlock()
|
||||
{
|
||||
CRYPTOPP_ASSERT(m_bufferedDataLength == 0);
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
const unsigned int blockSize = mac.TagSize();
|
||||
|
||||
mac.Final(m_buffer);
|
||||
xorbuf(m_buffer+blockSize, m_buffer, blockSize);
|
||||
|
||||
memset(m_buffer, 0, blockSize);
|
||||
m_buffer[blockSize-1] = 2;
|
||||
mac.Update(m_buffer, blockSize);
|
||||
}
|
||||
|
||||
void EAX_Base::AuthenticateLastFooterBlock(byte *tag, size_t macSize)
|
||||
{
|
||||
CRYPTOPP_ASSERT(m_bufferedDataLength == 0);
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
unsigned int blockSize = mac.TagSize();
|
||||
|
||||
mac.TruncatedFinal(m_buffer, macSize);
|
||||
xorbuf(tag, m_buffer, m_buffer+blockSize, macSize);
|
||||
}
|
||||
|
||||
NAMESPACE_END
|
||||
// eax.cpp - written and placed in the public domain by Wei Dai
|
||||
|
||||
#include "pch.h"
|
||||
#include "eax.h"
|
||||
|
||||
NAMESPACE_BEGIN(CryptoPP)
|
||||
|
||||
void EAX_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms)
|
||||
{
|
||||
AccessMAC().SetKey(userKey, keylength, params);
|
||||
m_buffer.New(2*AccessMAC().TagSize());
|
||||
}
|
||||
|
||||
void EAX_Base::Resync(const byte *iv, size_t len)
|
||||
{
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
unsigned int blockSize = mac.TagSize();
|
||||
|
||||
memset(m_buffer, 0, blockSize);
|
||||
mac.Update(m_buffer, blockSize);
|
||||
mac.CalculateDigest(m_buffer+blockSize, iv, len);
|
||||
|
||||
m_buffer[blockSize-1] = 1;
|
||||
mac.Update(m_buffer, blockSize);
|
||||
|
||||
m_ctr.SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize);
|
||||
}
|
||||
|
||||
size_t EAX_Base::AuthenticateBlocks(const byte *data, size_t len)
|
||||
{
|
||||
AccessMAC().Update(data, len);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void EAX_Base::AuthenticateLastHeaderBlock()
|
||||
{
|
||||
assert(m_bufferedDataLength == 0);
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
unsigned int blockSize = mac.TagSize();
|
||||
|
||||
mac.Final(m_buffer);
|
||||
xorbuf(m_buffer+blockSize, m_buffer, blockSize);
|
||||
|
||||
memset(m_buffer, 0, blockSize);
|
||||
m_buffer[blockSize-1] = 2;
|
||||
mac.Update(m_buffer, blockSize);
|
||||
}
|
||||
|
||||
void EAX_Base::AuthenticateLastFooterBlock(byte *tag, size_t macSize)
|
||||
{
|
||||
assert(m_bufferedDataLength == 0);
|
||||
MessageAuthenticationCode &mac = AccessMAC();
|
||||
unsigned int blockSize = mac.TagSize();
|
||||
|
||||
mac.TruncatedFinal(m_buffer, macSize);
|
||||
xorbuf(tag, m_buffer, m_buffer+blockSize, macSize);
|
||||
}
|
||||
|
||||
NAMESPACE_END
|
||||
|
||||
Reference in New Issue
Block a user