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author | Mattes D <github@xoft.cz> | 2014-01-25 22:05:16 +0100 |
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committer | Mattes D <github@xoft.cz> | 2014-01-25 22:05:16 +0100 |
commit | 437a9c8d1f13cc7770a95534dbf71b78685edfe7 (patch) | |
tree | 68b0e13a46f3936bb772106c0ca8d8e74aba2b8e /lib/cryptopp/adler32.cpp | |
parent | Merge pull request #581 from worktycho/strerror (diff) | |
parent | ProtoProxy: Modified to use PolarSSL. (diff) | |
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Diffstat (limited to 'lib/cryptopp/adler32.cpp')
-rw-r--r-- | lib/cryptopp/adler32.cpp | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/lib/cryptopp/adler32.cpp b/lib/cryptopp/adler32.cpp deleted file mode 100644 index 0d52c0838..000000000 --- a/lib/cryptopp/adler32.cpp +++ /dev/null @@ -1,77 +0,0 @@ -// adler32.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" -#include "adler32.h" - -NAMESPACE_BEGIN(CryptoPP) - -void Adler32::Update(const byte *input, size_t length) -{ - const unsigned long BASE = 65521; - - unsigned long s1 = m_s1; - unsigned long s2 = m_s2; - - if (length % 8 != 0) - { - do - { - s1 += *input++; - s2 += s1; - length--; - } while (length % 8 != 0); - - if (s1 >= BASE) - s1 -= BASE; - s2 %= BASE; - } - - while (length > 0) - { - s1 += input[0]; s2 += s1; - s1 += input[1]; s2 += s1; - s1 += input[2]; s2 += s1; - s1 += input[3]; s2 += s1; - s1 += input[4]; s2 += s1; - s1 += input[5]; s2 += s1; - s1 += input[6]; s2 += s1; - s1 += input[7]; s2 += s1; - - length -= 8; - input += 8; - - if (s1 >= BASE) - s1 -= BASE; - if (length % 0x8000 == 0) - s2 %= BASE; - } - - assert(s1 < BASE); - assert(s2 < BASE); - - m_s1 = (word16)s1; - m_s2 = (word16)s2; -} - -void Adler32::TruncatedFinal(byte *hash, size_t size) -{ - ThrowIfInvalidTruncatedSize(size); - - switch (size) - { - default: - hash[3] = byte(m_s1); - case 3: - hash[2] = byte(m_s1 >> 8); - case 2: - hash[1] = byte(m_s2); - case 1: - hash[0] = byte(m_s2 >> 8); - case 0: - ; - } - - Reset(); -} - -NAMESPACE_END |