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author | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
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committer | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
commit | 48809d4e85c125814425c621d8d0d89f95405924 (patch) | |
tree | 1010fd16c4b1199f3d27dd726dda241a2bd29f83 /cbcmac.cpp | |
parent | 025337a94aceb75d188149db70c2094673772816 (diff) | |
download | cryptopp-git-48809d4e85c125814425c621d8d0d89f95405924.tar.gz |
CRYPTOPP 5.6.3 RC6 checkin
Diffstat (limited to 'cbcmac.cpp')
-rw-r--r-- | cbcmac.cpp | 124 |
1 files changed, 62 insertions, 62 deletions
@@ -1,62 +1,62 @@ -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "cbcmac.h" - -NAMESPACE_BEGIN(CryptoPP) - -void CBC_MAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms) -{ - AccessCipher().SetKey(key, length, params); - m_reg.CleanNew(AccessCipher().BlockSize()); - m_counter = 0; -} - -void CBC_MAC_Base::Update(const byte *input, size_t length) -{ - unsigned int blockSize = AccessCipher().BlockSize(); - - while (m_counter && length) - { - m_reg[m_counter++] ^= *input++; - if (m_counter == blockSize) - ProcessBuf(); - length--; - } - - if (length >= blockSize) - { - size_t leftOver = AccessCipher().AdvancedProcessBlocks(m_reg, input, m_reg, length, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput); - input += (length - leftOver); - length = leftOver; - } - - while (length--) - { - m_reg[m_counter++] ^= *input++; - if (m_counter == blockSize) - ProcessBuf(); - } -} - -void CBC_MAC_Base::TruncatedFinal(byte *mac, size_t size) -{ - ThrowIfInvalidTruncatedSize(size); - - if (m_counter) - ProcessBuf(); - - memcpy(mac, m_reg, size); - memset(m_reg, 0, AccessCipher().BlockSize()); -} - -void CBC_MAC_Base::ProcessBuf() -{ - AccessCipher().ProcessBlock(m_reg); - m_counter = 0; -} - -NAMESPACE_END - -#endif +#include "pch.h"
+
+#ifndef CRYPTOPP_IMPORTS
+
+#include "cbcmac.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+void CBC_MAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms)
+{
+ AccessCipher().SetKey(key, length, params);
+ m_reg.CleanNew(AccessCipher().BlockSize());
+ m_counter = 0;
+}
+
+void CBC_MAC_Base::Update(const byte *input, size_t length)
+{
+ unsigned int blockSize = AccessCipher().BlockSize();
+
+ while (m_counter && length)
+ {
+ m_reg[m_counter++] ^= *input++;
+ if (m_counter == blockSize)
+ ProcessBuf();
+ length--;
+ }
+
+ if (length >= blockSize)
+ {
+ size_t leftOver = AccessCipher().AdvancedProcessBlocks(m_reg, input, m_reg, length, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
+ input += (length - leftOver);
+ length = leftOver;
+ }
+
+ while (length--)
+ {
+ m_reg[m_counter++] ^= *input++;
+ if (m_counter == blockSize)
+ ProcessBuf();
+ }
+}
+
+void CBC_MAC_Base::TruncatedFinal(byte *mac, size_t size)
+{
+ ThrowIfInvalidTruncatedSize(size);
+
+ if (m_counter)
+ ProcessBuf();
+
+ memcpy(mac, m_reg, size);
+ memset(m_reg, 0, AccessCipher().BlockSize());
+}
+
+void CBC_MAC_Base::ProcessBuf()
+{
+ AccessCipher().ProcessBlock(m_reg);
+ m_counter = 0;
+}
+
+NAMESPACE_END
+
+#endif
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