diff options
| author | Kirill Volinsky <mataes2007@gmail.com> | 2013-02-25 10:15:31 +0000 | 
|---|---|---|
| committer | Kirill Volinsky <mataes2007@gmail.com> | 2013-02-25 10:15:31 +0000 | 
| commit | dcce39da3e6f7485dca39950dfc835563de3c3ea (patch) | |
| tree | 0f0269e524cc83e41e4614e3c84abe3580ad2c9c /plugins/FTPFileYM/curl-7.29.0/lib/md4.c | |
| parent | d395ad5aceb634b5ccfcb8d31b4b1574e557469e (diff) | |
1 step: libcurl static link
git-svn-id: http://svn.miranda-ng.org/main/trunk@3763 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/FTPFileYM/curl-7.29.0/lib/md4.c')
| -rw-r--r-- | plugins/FTPFileYM/curl-7.29.0/lib/md4.c | 282 | 
1 files changed, 282 insertions, 0 deletions
diff --git a/plugins/FTPFileYM/curl-7.29.0/lib/md4.c b/plugins/FTPFileYM/curl-7.29.0/lib/md4.c new file mode 100644 index 0000000000..6930e021af --- /dev/null +++ b/plugins/FTPFileYM/curl-7.29.0/lib/md4.c @@ -0,0 +1,282 @@ +/*- +   Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved. + +   License to copy and use this software is granted provided that it +   is identified as the "RSA Data Security, Inc. MD4 Message-Digest +   Algorithm" in all material mentioning or referencing this software +   or this function. + +   License is also granted to make and use derivative works provided +   that such works are identified as "derived from the RSA Data +   Security, Inc. MD4 Message-Digest Algorithm" in all material +   mentioning or referencing the derived work. + +   RSA Data Security, Inc. makes no representations concerning either +   the merchantability of this software or the suitability of this +   software for any particular purpose. It is provided "as is" +   without express or implied warranty of any kind. + +   These notices must be retained in any copies of any part of this +   documentation and/or software. + */ + +#include "curl_setup.h" + +/* NSS crypto library does not provide the MD4 hash algorithm, so that we have + * a local implementation of it */ +#ifdef USE_NSS + +#include "curl_md4.h" +#include "warnless.h" + +typedef unsigned int UINT4; + +typedef struct MD4Context { +  UINT4 state[4];               /* state (ABCD) */ +  UINT4 count[2];               /* number of bits, modulo 2^64 (lsb first) */ +  unsigned char buffer[64];     /* input buffer */ +} MD4_CTX; + +/* Constants for MD4Transform routine. + */ +#define S11 3 +#define S12 7 +#define S13 11 +#define S14 19 +#define S21 3 +#define S22 5 +#define S23 9 +#define S24 13 +#define S31 3 +#define S32 9 +#define S33 11 +#define S34 15 + +static void MD4Transform(UINT4 [4], const unsigned char [64]); +static void Encode(unsigned char *, UINT4 *, unsigned int); +static void Decode(UINT4 *, const unsigned char *, unsigned int); + +static unsigned char PADDING[64] = { +  0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* F, G and H are basic MD4 functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z))) +#define H(x, y, z) ((x) ^ (y) ^ (z)) + +/* ROTATE_LEFT rotates x left n bits. + */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG and HH are transformations for rounds 1, 2 and 3 */ +/* Rotation is separate from addition to prevent recomputation */ +#define FF(a, b, c, d, x, s) { \ +    (a) += F ((b), (c), (d)) + (x); \ +    (a) = ROTATE_LEFT ((a), (s)); \ +  } +#define GG(a, b, c, d, x, s) { \ +    (a) += G ((b), (c), (d)) + (x) + (UINT4)0x5a827999; \ +    (a) = ROTATE_LEFT ((a), (s)); \ +  } +#define HH(a, b, c, d, x, s) { \ +    (a) += H ((b), (c), (d)) + (x) + (UINT4)0x6ed9eba1; \ +    (a) = ROTATE_LEFT ((a), (s)); \ +  } + +/* MD4 initialization. Begins an MD4 operation, writing a new context. + */ +static void MD4Init(MD4_CTX *context) +{ +  context->count[0] = context->count[1] = 0; + +  /* Load magic initialization constants. +   */ +  context->state[0] = 0x67452301; +  context->state[1] = 0xefcdab89; +  context->state[2] = 0x98badcfe; +  context->state[3] = 0x10325476; +} + +/* MD4 block update operation. Continues an MD4 message-digest +     operation, processing another message block, and updating the +     context. + */ +static void MD4Update(MD4_CTX *context, const unsigned char *input, +                      unsigned int inputLen) +{ +  unsigned int i, bufindex, partLen; + +  /* Compute number of bytes mod 64 */ +  bufindex = (unsigned int)((context->count[0] >> 3) & 0x3F); +  /* Update number of bits */ +  if((context->count[0] += ((UINT4)inputLen << 3)) +     < ((UINT4)inputLen << 3)) +    context->count[1]++; +  context->count[1] += ((UINT4)inputLen >> 29); + +  partLen = 64 - bufindex; +  /* Transform as many times as possible. +   */ +  if(inputLen >= partLen) { +    memcpy(&context->buffer[bufindex], input, partLen); +    MD4Transform (context->state, context->buffer); + +    for(i = partLen; i + 63 < inputLen; i += 64) +      MD4Transform (context->state, &input[i]); + +    bufindex = 0; +  } +  else +    i = 0; + +  /* Buffer remaining input */ +  memcpy(&context->buffer[bufindex], &input[i], inputLen-i); +} + +/* MD4 padding. */ +static void MD4Pad(MD4_CTX *context) +{ +  unsigned char bits[8]; +  unsigned int bufindex, padLen; + +  /* Save number of bits */ +  Encode (bits, context->count, 8); + +  /* Pad out to 56 mod 64. +   */ +  bufindex = (unsigned int)((context->count[0] >> 3) & 0x3f); +  padLen = (bufindex < 56) ? (56 - bufindex) : (120 - bufindex); +  MD4Update (context, PADDING, padLen); + +  /* Append length (before padding) */ +  MD4Update (context, bits, 8); +} + +/* MD4 finalization. Ends an MD4 message-digest operation, writing the +     the message digest and zeroizing the context. + */ +static void MD4Final (unsigned char digest[16], MD4_CTX *context) +{ +  /* Do padding */ +  MD4Pad (context); + +  /* Store state in digest */ +  Encode (digest, context->state, 16); + +  /* Zeroize sensitive information. +   */ +  memset(context, 0, sizeof(*context)); +} + +/* MD4 basic transformation. Transforms state based on block. + */ +static void MD4Transform (UINT4 state[4], const unsigned char block[64]) +{ +  UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; + +  Decode (x, block, 64); + +  /* Round 1 */ +  FF (a, b, c, d, x[ 0], S11); /* 1 */ +  FF (d, a, b, c, x[ 1], S12); /* 2 */ +  FF (c, d, a, b, x[ 2], S13); /* 3 */ +  FF (b, c, d, a, x[ 3], S14); /* 4 */ +  FF (a, b, c, d, x[ 4], S11); /* 5 */ +  FF (d, a, b, c, x[ 5], S12); /* 6 */ +  FF (c, d, a, b, x[ 6], S13); /* 7 */ +  FF (b, c, d, a, x[ 7], S14); /* 8 */ +  FF (a, b, c, d, x[ 8], S11); /* 9 */ +  FF (d, a, b, c, x[ 9], S12); /* 10 */ +  FF (c, d, a, b, x[10], S13); /* 11 */ +  FF (b, c, d, a, x[11], S14); /* 12 */ +  FF (a, b, c, d, x[12], S11); /* 13 */ +  FF (d, a, b, c, x[13], S12); /* 14 */ +  FF (c, d, a, b, x[14], S13); /* 15 */ +  FF (b, c, d, a, x[15], S14); /* 16 */ + +  /* Round 2 */ +  GG (a, b, c, d, x[ 0], S21); /* 17 */ +  GG (d, a, b, c, x[ 4], S22); /* 18 */ +  GG (c, d, a, b, x[ 8], S23); /* 19 */ +  GG (b, c, d, a, x[12], S24); /* 20 */ +  GG (a, b, c, d, x[ 1], S21); /* 21 */ +  GG (d, a, b, c, x[ 5], S22); /* 22 */ +  GG (c, d, a, b, x[ 9], S23); /* 23 */ +  GG (b, c, d, a, x[13], S24); /* 24 */ +  GG (a, b, c, d, x[ 2], S21); /* 25 */ +  GG (d, a, b, c, x[ 6], S22); /* 26 */ +  GG (c, d, a, b, x[10], S23); /* 27 */ +  GG (b, c, d, a, x[14], S24); /* 28 */ +  GG (a, b, c, d, x[ 3], S21); /* 29 */ +  GG (d, a, b, c, x[ 7], S22); /* 30 */ +  GG (c, d, a, b, x[11], S23); /* 31 */ +  GG (b, c, d, a, x[15], S24); /* 32 */ + +  /* Round 3 */ +  HH (a, b, c, d, x[ 0], S31); /* 33 */ +  HH (d, a, b, c, x[ 8], S32); /* 34 */ +  HH (c, d, a, b, x[ 4], S33); /* 35 */ +  HH (b, c, d, a, x[12], S34); /* 36 */ +  HH (a, b, c, d, x[ 2], S31); /* 37 */ +  HH (d, a, b, c, x[10], S32); /* 38 */ +  HH (c, d, a, b, x[ 6], S33); /* 39 */ +  HH (b, c, d, a, x[14], S34); /* 40 */ +  HH (a, b, c, d, x[ 1], S31); /* 41 */ +  HH (d, a, b, c, x[ 9], S32); /* 42 */ +  HH (c, d, a, b, x[ 5], S33); /* 43 */ +  HH (b, c, d, a, x[13], S34); /* 44 */ +  HH (a, b, c, d, x[ 3], S31); /* 45 */ +  HH (d, a, b, c, x[11], S32); /* 46 */ +  HH (c, d, a, b, x[ 7], S33); /* 47 */ +  HH (b, c, d, a, x[15], S34); /* 48 */ + +  state[0] += a; +  state[1] += b; +  state[2] += c; +  state[3] += d; + +  /* Zeroize sensitive information. +   */ +  memset(x, 0, sizeof(x)); +} + +/* Encodes input (UINT4) into output (unsigned char). Assumes len is +     a multiple of 4. + */ +static void Encode(unsigned char *output, UINT4 *input, unsigned int len) +{ +  unsigned int i, j; + +  for(i = 0, j = 0; j < len; i++, j += 4) { +    output[j] = (unsigned char)(input[i] & 0xff); +    output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); +    output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); +    output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); +  } +} + +/* Decodes input (unsigned char) into output (UINT4). Assumes len is +     a multiple of 4. + */ +static void Decode (UINT4 *output, const unsigned char *input, +                    unsigned int len) +{ +  unsigned int i, j; + +  for(i = 0, j = 0; j < len; i++, j += 4) +    output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) | +      (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24); +} + +void Curl_md4it(unsigned char *output, const unsigned char *input, size_t len) +{ +  MD4_CTX ctx; +  MD4Init(&ctx); +  MD4Update(&ctx, input, curlx_uztoui(len)); +  MD4Final(output, &ctx); +} +#endif /* USE_NSS */  | 
