diff options
Diffstat (limited to 'crypto/src/crypto/digests/MD5Digest.cs')
| -rw-r--r-- | crypto/src/crypto/digests/MD5Digest.cs | 141 |
1 files changed, 64 insertions, 77 deletions
diff --git a/crypto/src/crypto/digests/MD5Digest.cs b/crypto/src/crypto/digests/MD5Digest.cs index 062d7bb46..3a0967bc3 100644 --- a/crypto/src/crypto/digests/MD5Digest.cs +++ b/crypto/src/crypto/digests/MD5Digest.cs @@ -182,16 +182,6 @@ namespace Org.BouncyCastle.Crypto.Digests private static readonly int S44 = 21; /* - * rotate int x left n bits. - */ - private static uint RotateLeft( - uint x, - int n) - { - return (x << n) | (x >> (32 - n)); - } - - /* * F, G, H and I are the basic MD5 functions. */ private static uint F( @@ -236,82 +226,82 @@ namespace Org.BouncyCastle.Crypto.Digests // // Round 1 - F cycle, 16 times. // - a = RotateLeft((a + F(b, c, d) + X[0] + 0xd76aa478), S11) + b; - d = RotateLeft((d + F(a, b, c) + X[1] + 0xe8c7b756), S12) + a; - c = RotateLeft((c + F(d, a, b) + X[2] + 0x242070db), S13) + d; - b = RotateLeft((b + F(c, d, a) + X[3] + 0xc1bdceee), S14) + c; - a = RotateLeft((a + F(b, c, d) + X[4] + 0xf57c0faf), S11) + b; - d = RotateLeft((d + F(a, b, c) + X[5] + 0x4787c62a), S12) + a; - c = RotateLeft((c + F(d, a, b) + X[6] + 0xa8304613), S13) + d; - b = RotateLeft((b + F(c, d, a) + X[7] + 0xfd469501), S14) + c; - a = RotateLeft((a + F(b, c, d) + X[8] + 0x698098d8), S11) + b; - d = RotateLeft((d + F(a, b, c) + X[9] + 0x8b44f7af), S12) + a; - c = RotateLeft((c + F(d, a, b) + X[10] + 0xffff5bb1), S13) + d; - b = RotateLeft((b + F(c, d, a) + X[11] + 0x895cd7be), S14) + c; - a = RotateLeft((a + F(b, c, d) + X[12] + 0x6b901122), S11) + b; - d = RotateLeft((d + F(a, b, c) + X[13] + 0xfd987193), S12) + a; - c = RotateLeft((c + F(d, a, b) + X[14] + 0xa679438e), S13) + d; - b = RotateLeft((b + F(c, d, a) + X[15] + 0x49b40821), S14) + c; + a = Integers.RotateLeft((a + F(b, c, d) + X[0] + 0xd76aa478), S11) + b; + d = Integers.RotateLeft((d + F(a, b, c) + X[1] + 0xe8c7b756), S12) + a; + c = Integers.RotateLeft((c + F(d, a, b) + X[2] + 0x242070db), S13) + d; + b = Integers.RotateLeft((b + F(c, d, a) + X[3] + 0xc1bdceee), S14) + c; + a = Integers.RotateLeft((a + F(b, c, d) + X[4] + 0xf57c0faf), S11) + b; + d = Integers.RotateLeft((d + F(a, b, c) + X[5] + 0x4787c62a), S12) + a; + c = Integers.RotateLeft((c + F(d, a, b) + X[6] + 0xa8304613), S13) + d; + b = Integers.RotateLeft((b + F(c, d, a) + X[7] + 0xfd469501), S14) + c; + a = Integers.RotateLeft((a + F(b, c, d) + X[8] + 0x698098d8), S11) + b; + d = Integers.RotateLeft((d + F(a, b, c) + X[9] + 0x8b44f7af), S12) + a; + c = Integers.RotateLeft((c + F(d, a, b) + X[10] + 0xffff5bb1), S13) + d; + b = Integers.RotateLeft((b + F(c, d, a) + X[11] + 0x895cd7be), S14) + c; + a = Integers.RotateLeft((a + F(b, c, d) + X[12] + 0x6b901122), S11) + b; + d = Integers.RotateLeft((d + F(a, b, c) + X[13] + 0xfd987193), S12) + a; + c = Integers.RotateLeft((c + F(d, a, b) + X[14] + 0xa679438e), S13) + d; + b = Integers.RotateLeft((b + F(c, d, a) + X[15] + 0x49b40821), S14) + c; // // Round 2 - G cycle, 16 times. // - a = RotateLeft((a + G(b, c, d) + X[1] + 0xf61e2562), S21) + b; - d = RotateLeft((d + G(a, b, c) + X[6] + 0xc040b340), S22) + a; - c = RotateLeft((c + G(d, a, b) + X[11] + 0x265e5a51), S23) + d; - b = RotateLeft((b + G(c, d, a) + X[0] + 0xe9b6c7aa), S24) + c; - a = RotateLeft((a + G(b, c, d) + X[5] + 0xd62f105d), S21) + b; - d = RotateLeft((d + G(a, b, c) + X[10] + 0x02441453), S22) + a; - c = RotateLeft((c + G(d, a, b) + X[15] + 0xd8a1e681), S23) + d; - b = RotateLeft((b + G(c, d, a) + X[4] + 0xe7d3fbc8), S24) + c; - a = RotateLeft((a + G(b, c, d) + X[9] + 0x21e1cde6), S21) + b; - d = RotateLeft((d + G(a, b, c) + X[14] + 0xc33707d6), S22) + a; - c = RotateLeft((c + G(d, a, b) + X[3] + 0xf4d50d87), S23) + d; - b = RotateLeft((b + G(c, d, a) + X[8] + 0x455a14ed), S24) + c; - a = RotateLeft((a + G(b, c, d) + X[13] + 0xa9e3e905), S21) + b; - d = RotateLeft((d + G(a, b, c) + X[2] + 0xfcefa3f8), S22) + a; - c = RotateLeft((c + G(d, a, b) + X[7] + 0x676f02d9), S23) + d; - b = RotateLeft((b + G(c, d, a) + X[12] + 0x8d2a4c8a), S24) + c; + a = Integers.RotateLeft((a + G(b, c, d) + X[1] + 0xf61e2562), S21) + b; + d = Integers.RotateLeft((d + G(a, b, c) + X[6] + 0xc040b340), S22) + a; + c = Integers.RotateLeft((c + G(d, a, b) + X[11] + 0x265e5a51), S23) + d; + b = Integers.RotateLeft((b + G(c, d, a) + X[0] + 0xe9b6c7aa), S24) + c; + a = Integers.RotateLeft((a + G(b, c, d) + X[5] + 0xd62f105d), S21) + b; + d = Integers.RotateLeft((d + G(a, b, c) + X[10] + 0x02441453), S22) + a; + c = Integers.RotateLeft((c + G(d, a, b) + X[15] + 0xd8a1e681), S23) + d; + b = Integers.RotateLeft((b + G(c, d, a) + X[4] + 0xe7d3fbc8), S24) + c; + a = Integers.RotateLeft((a + G(b, c, d) + X[9] + 0x21e1cde6), S21) + b; + d = Integers.RotateLeft((d + G(a, b, c) + X[14] + 0xc33707d6), S22) + a; + c = Integers.RotateLeft((c + G(d, a, b) + X[3] + 0xf4d50d87), S23) + d; + b = Integers.RotateLeft((b + G(c, d, a) + X[8] + 0x455a14ed), S24) + c; + a = Integers.RotateLeft((a + G(b, c, d) + X[13] + 0xa9e3e905), S21) + b; + d = Integers.RotateLeft((d + G(a, b, c) + X[2] + 0xfcefa3f8), S22) + a; + c = Integers.RotateLeft((c + G(d, a, b) + X[7] + 0x676f02d9), S23) + d; + b = Integers.RotateLeft((b + G(c, d, a) + X[12] + 0x8d2a4c8a), S24) + c; // // Round 3 - H cycle, 16 times. // - a = RotateLeft((a + H(b, c, d) + X[5] + 0xfffa3942), S31) + b; - d = RotateLeft((d + H(a, b, c) + X[8] + 0x8771f681), S32) + a; - c = RotateLeft((c + H(d, a, b) + X[11] + 0x6d9d6122), S33) + d; - b = RotateLeft((b + H(c, d, a) + X[14] + 0xfde5380c), S34) + c; - a = RotateLeft((a + H(b, c, d) + X[1] + 0xa4beea44), S31) + b; - d = RotateLeft((d + H(a, b, c) + X[4] + 0x4bdecfa9), S32) + a; - c = RotateLeft((c + H(d, a, b) + X[7] + 0xf6bb4b60), S33) + d; - b = RotateLeft((b + H(c, d, a) + X[10] + 0xbebfbc70), S34) + c; - a = RotateLeft((a + H(b, c, d) + X[13] + 0x289b7ec6), S31) + b; - d = RotateLeft((d + H(a, b, c) + X[0] + 0xeaa127fa), S32) + a; - c = RotateLeft((c + H(d, a, b) + X[3] + 0xd4ef3085), S33) + d; - b = RotateLeft((b + H(c, d, a) + X[6] + 0x04881d05), S34) + c; - a = RotateLeft((a + H(b, c, d) + X[9] + 0xd9d4d039), S31) + b; - d = RotateLeft((d + H(a, b, c) + X[12] + 0xe6db99e5), S32) + a; - c = RotateLeft((c + H(d, a, b) + X[15] + 0x1fa27cf8), S33) + d; - b = RotateLeft((b + H(c, d, a) + X[2] + 0xc4ac5665), S34) + c; + a = Integers.RotateLeft((a + H(b, c, d) + X[5] + 0xfffa3942), S31) + b; + d = Integers.RotateLeft((d + H(a, b, c) + X[8] + 0x8771f681), S32) + a; + c = Integers.RotateLeft((c + H(d, a, b) + X[11] + 0x6d9d6122), S33) + d; + b = Integers.RotateLeft((b + H(c, d, a) + X[14] + 0xfde5380c), S34) + c; + a = Integers.RotateLeft((a + H(b, c, d) + X[1] + 0xa4beea44), S31) + b; + d = Integers.RotateLeft((d + H(a, b, c) + X[4] + 0x4bdecfa9), S32) + a; + c = Integers.RotateLeft((c + H(d, a, b) + X[7] + 0xf6bb4b60), S33) + d; + b = Integers.RotateLeft((b + H(c, d, a) + X[10] + 0xbebfbc70), S34) + c; + a = Integers.RotateLeft((a + H(b, c, d) + X[13] + 0x289b7ec6), S31) + b; + d = Integers.RotateLeft((d + H(a, b, c) + X[0] + 0xeaa127fa), S32) + a; + c = Integers.RotateLeft((c + H(d, a, b) + X[3] + 0xd4ef3085), S33) + d; + b = Integers.RotateLeft((b + H(c, d, a) + X[6] + 0x04881d05), S34) + c; + a = Integers.RotateLeft((a + H(b, c, d) + X[9] + 0xd9d4d039), S31) + b; + d = Integers.RotateLeft((d + H(a, b, c) + X[12] + 0xe6db99e5), S32) + a; + c = Integers.RotateLeft((c + H(d, a, b) + X[15] + 0x1fa27cf8), S33) + d; + b = Integers.RotateLeft((b + H(c, d, a) + X[2] + 0xc4ac5665), S34) + c; // // Round 4 - K cycle, 16 times. // - a = RotateLeft((a + K(b, c, d) + X[0] + 0xf4292244), S41) + b; - d = RotateLeft((d + K(a, b, c) + X[7] + 0x432aff97), S42) + a; - c = RotateLeft((c + K(d, a, b) + X[14] + 0xab9423a7), S43) + d; - b = RotateLeft((b + K(c, d, a) + X[5] + 0xfc93a039), S44) + c; - a = RotateLeft((a + K(b, c, d) + X[12] + 0x655b59c3), S41) + b; - d = RotateLeft((d + K(a, b, c) + X[3] + 0x8f0ccc92), S42) + a; - c = RotateLeft((c + K(d, a, b) + X[10] + 0xffeff47d), S43) + d; - b = RotateLeft((b + K(c, d, a) + X[1] + 0x85845dd1), S44) + c; - a = RotateLeft((a + K(b, c, d) + X[8] + 0x6fa87e4f), S41) + b; - d = RotateLeft((d + K(a, b, c) + X[15] + 0xfe2ce6e0), S42) + a; - c = RotateLeft((c + K(d, a, b) + X[6] + 0xa3014314), S43) + d; - b = RotateLeft((b + K(c, d, a) + X[13] + 0x4e0811a1), S44) + c; - a = RotateLeft((a + K(b, c, d) + X[4] + 0xf7537e82), S41) + b; - d = RotateLeft((d + K(a, b, c) + X[11] + 0xbd3af235), S42) + a; - c = RotateLeft((c + K(d, a, b) + X[2] + 0x2ad7d2bb), S43) + d; - b = RotateLeft((b + K(c, d, a) + X[9] + 0xeb86d391), S44) + c; + a = Integers.RotateLeft((a + K(b, c, d) + X[0] + 0xf4292244), S41) + b; + d = Integers.RotateLeft((d + K(a, b, c) + X[7] + 0x432aff97), S42) + a; + c = Integers.RotateLeft((c + K(d, a, b) + X[14] + 0xab9423a7), S43) + d; + b = Integers.RotateLeft((b + K(c, d, a) + X[5] + 0xfc93a039), S44) + c; + a = Integers.RotateLeft((a + K(b, c, d) + X[12] + 0x655b59c3), S41) + b; + d = Integers.RotateLeft((d + K(a, b, c) + X[3] + 0x8f0ccc92), S42) + a; + c = Integers.RotateLeft((c + K(d, a, b) + X[10] + 0xffeff47d), S43) + d; + b = Integers.RotateLeft((b + K(c, d, a) + X[1] + 0x85845dd1), S44) + c; + a = Integers.RotateLeft((a + K(b, c, d) + X[8] + 0x6fa87e4f), S41) + b; + d = Integers.RotateLeft((d + K(a, b, c) + X[15] + 0xfe2ce6e0), S42) + a; + c = Integers.RotateLeft((c + K(d, a, b) + X[6] + 0xa3014314), S43) + d; + b = Integers.RotateLeft((b + K(c, d, a) + X[13] + 0x4e0811a1), S44) + c; + a = Integers.RotateLeft((a + K(b, c, d) + X[4] + 0xf7537e82), S41) + b; + d = Integers.RotateLeft((d + K(a, b, c) + X[11] + 0xbd3af235), S42) + a; + c = Integers.RotateLeft((c + K(d, a, b) + X[2] + 0x2ad7d2bb), S43) + d; + b = Integers.RotateLeft((b + K(c, d, a) + X[9] + 0xeb86d391), S44) + c; H1 += a; H2 += b; @@ -332,8 +322,5 @@ namespace Org.BouncyCastle.Crypto.Digests CopyIn(d); } - } - } - |