diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/CryptoPP/crypto/md2.cpp | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/CryptoPP/crypto/md2.cpp')
| -rw-r--r-- | plugins/CryptoPP/crypto/md2.cpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/md2.cpp b/plugins/CryptoPP/crypto/md2.cpp new file mode 100644 index 0000000000..f4331dad86 --- /dev/null +++ b/plugins/CryptoPP/crypto/md2.cpp @@ -0,0 +1,120 @@ +// md2.cpp - modified by Wei Dai from Andrew M. Kuchling's md2.c
+// The original code and all modifications are in the public domain.
+
+// This is the original introductory comment:
+
+/*
+ * md2.c : MD2 hash algorithm.
+ *
+ * Part of the Python Cryptography Toolkit, version 1.1
+ *
+ * Distribute and use freely; there are no restrictions on further
+ * dissemination and usage except those imposed by the laws of your
+ * country of residence.
+ *
+ */
+
+#include "pch.h"
+#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
+#include "md2.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+namespace Weak1 {
+
+MD2::MD2()
+ : m_X(48), m_C(16), m_buf(16)
+{
+ Init();
+}
+
+void MD2::Init()
+{
+ memset(m_X, 0, 48);
+ memset(m_C, 0, 16);
+ memset(m_buf, 0, 16);
+ m_count = 0;
+}
+
+void MD2::Update(const byte *buf, size_t len)
+{
+ static const byte S[256] = {
+ 41, 46, 67, 201, 162, 216, 124, 1, 61, 54, 84, 161, 236, 240, 6,
+ 19, 98, 167, 5, 243, 192, 199, 115, 140, 152, 147, 43, 217, 188,
+ 76, 130, 202, 30, 155, 87, 60, 253, 212, 224, 22, 103, 66, 111, 24,
+ 138, 23, 229, 18, 190, 78, 196, 214, 218, 158, 222, 73, 160, 251,
+ 245, 142, 187, 47, 238, 122, 169, 104, 121, 145, 21, 178, 7, 63,
+ 148, 194, 16, 137, 11, 34, 95, 33, 128, 127, 93, 154, 90, 144, 50,
+ 39, 53, 62, 204, 231, 191, 247, 151, 3, 255, 25, 48, 179, 72, 165,
+ 181, 209, 215, 94, 146, 42, 172, 86, 170, 198, 79, 184, 56, 210,
+ 150, 164, 125, 182, 118, 252, 107, 226, 156, 116, 4, 241, 69, 157,
+ 112, 89, 100, 113, 135, 32, 134, 91, 207, 101, 230, 45, 168, 2, 27,
+ 96, 37, 173, 174, 176, 185, 246, 28, 70, 97, 105, 52, 64, 126, 15,
+ 85, 71, 163, 35, 221, 81, 175, 58, 195, 92, 249, 206, 186, 197,
+ 234, 38, 44, 83, 13, 110, 133, 40, 132, 9, 211, 223, 205, 244, 65,
+ 129, 77, 82, 106, 220, 55, 200, 108, 193, 171, 250, 36, 225, 123,
+ 8, 12, 189, 177, 74, 120, 136, 149, 139, 227, 99, 232, 109, 233,
+ 203, 213, 254, 59, 0, 29, 57, 242, 239, 183, 14, 102, 88, 208, 228,
+ 166, 119, 114, 248, 235, 117, 75, 10, 49, 68, 80, 180, 143, 237,
+ 31, 26, 219, 153, 141, 51, 159, 17, 131, 20
+ };
+
+ while (len)
+ {
+ unsigned int L = UnsignedMin(16U-m_count, len);
+ memcpy(m_buf+m_count, buf, L);
+ m_count+=L;
+ buf+=L;
+ len-=L;
+ if (m_count==16)
+ {
+ byte t;
+ int i,j;
+
+ m_count=0;
+ memcpy(m_X+16, m_buf, 16);
+ t=m_C[15];
+ for(i=0; i<16; i++)
+ {
+ m_X[32+i]=m_X[16+i]^m_X[i];
+ t=m_C[i]^=S[m_buf[i]^t];
+ }
+
+ t=0;
+ for(i=0; i<18; i++)
+ {
+ for(j=0; j<48; j+=8)
+ {
+ t=m_X[j+0]^=S[t];
+ t=m_X[j+1]^=S[t];
+ t=m_X[j+2]^=S[t];
+ t=m_X[j+3]^=S[t];
+ t=m_X[j+4]^=S[t];
+ t=m_X[j+5]^=S[t];
+ t=m_X[j+6]^=S[t];
+ t=m_X[j+7]^=S[t];
+ }
+ t=(t+i) & 0xFF;
+ }
+ }
+ }
+}
+
+void MD2::TruncatedFinal(byte *hash, size_t size)
+{
+ ThrowIfInvalidTruncatedSize(size);
+
+ byte padding[16];
+ word32 padlen;
+ unsigned int i;
+
+ padlen= 16-m_count;
+ for(i=0; i<padlen; i++) padding[i]=(byte)padlen;
+ Update(padding, padlen);
+ Update(m_C, 16);
+ memcpy(hash, m_X, size);
+
+ Init();
+}
+
+}
+NAMESPACE_END
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