Doxygen Source Code Documentation
niml_md5.c File Reference
#include "niml_private.h"Go to the source code of this file.
Defines | |
| #define | S11 7 |
| #define | S12 12 |
| #define | S13 17 |
| #define | S14 22 |
| #define | S21 5 |
| #define | S22 9 |
| #define | S23 14 |
| #define | S24 20 |
| #define | S31 4 |
| #define | S32 11 |
| #define | S33 16 |
| #define | S34 23 |
| #define | S41 6 |
| #define | S42 10 |
| #define | S43 15 |
| #define | S44 21 |
| #define | F(x, y, z) (((x) & (y)) | ((~x) & (z))) |
| #define | G(x, y, z) (((x) & (z)) | ((y) & (~z))) |
| #define | H(x, y, z) ((x) ^ (y) ^ (z)) |
| #define | I(x, y, z) ((y) ^ ((x) | (~z))) |
| #define | ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) |
| #define | FF(a, b, c, d, x, s, ac) |
| #define | GG(a, b, c, d, x, s, ac) |
| #define | HH(a, b, c, d, x, s, ac) |
| #define | II(a, b, c, d, x, s, ac) |
Functions | |
| void | MD5Transform (UINT4[4], unsigned char[64]) |
| void | Encode (unsigned char *, UINT4 *, unsigned int) |
| void | Decode (UINT4 *, unsigned char *, unsigned int) |
| void | MD5Init (MD5_CTX *context) |
| void | MD5Update (MD5_CTX *context, unsigned char *input, unsigned int inputLen) |
| void | MD5Final (unsigned char digest[16], MD5_CTX *context) |
| char * | MD5_static_printf (unsigned char digest[16]) |
| char * | MD5_static_array (int n, char *bytes) |
| char * | MD5_malloc_array (int n, char *bytes) |
| char * | MD5_static_string (char *string) |
| char * | MD5_malloc_string (char *string) |
| char * | MD5_static_file (char *filename) |
| char * | MD5_malloc_file (char *filename) |
| char * | MD5_to_B64 (unsigned char digest[16]) |
| char * | MD5_B64_array (int n, char *bytes) |
| char * | MD5_B64_string (char *string) |
| char * | MD5_B64_file (char *filename) |
Variables | |
| unsigned char | PADDING [64] |
Define Documentation
|
|
Definition at line 67 of file niml_md5.c. |
|
|
Value: { \
(a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}Definition at line 79 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 68 of file niml_md5.c. |
|
|
Value: { \
(a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}Definition at line 85 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 69 of file niml_md5.c. |
|
|
Value: { \
(a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}Definition at line 91 of file niml_md5.c. Referenced by MD5Transform(), and pfit(). |
|
|
Definition at line 70 of file niml_md5.c. |
|
|
Value: { \
(a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}Definition at line 97 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 74 of file niml_md5.c. |
|
|
Definition at line 42 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 43 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 44 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 45 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 46 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 47 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 48 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 49 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 50 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 51 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 52 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 53 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 54 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 55 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 56 of file niml_md5.c. Referenced by MD5Transform(). |
|
|
Definition at line 57 of file niml_md5.c. Referenced by MD5Transform(). |
Function Documentation
|
||||||||||||||||
|
Decodes input (unsigned char) into output (UINT4). Assumes len is a multiple of 4. ------------------------------------------------------------------------ Definition at line 316 of file niml_md5.c. References i.
|
|
||||||||||||||||
|
Encodes input (UINT4) into output (unsigned char). Assumes len is a multiple of 4. ------------------------------------------------------------------------ Definition at line 299 of file niml_md5.c. References i.
00300 {
00301 unsigned int i, j;
00302
00303 for (i = 0, j = 0; j < len; i++, j += 4) {
00304 output[j] = (unsigned char)(input[i] & 0xff);
00305 output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
00306 output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
00307 output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
00308 }
00309 }
|
|
||||||||||||
|
Return the MD5 hash of an array as a Base64 string, instead of a hex string. strlen(result) is 22 instead of 32 result is malloc()-ed and should be free()-d when appropriate ------------------------------------------------------------------------------ Definition at line 466 of file niml_md5.c. References MD5_to_B64(), MD5Final(), MD5Init(), and MD5Update().
00467 {
00468 MD5_CTX context;
00469 unsigned char digest[16];
00470
00471 if( n < 0 || bytes == NULL ) return NULL ;
00472
00473 MD5Init( &context ) ;
00474 MD5Update( &context, (unsigned char *)bytes, n ) ;
00475 MD5Final( digest, &context ) ;
00476
00477 return MD5_to_B64( digest ) ;
00478 }
|
|
|
Return the MD5 hash of a file as a Base64 string, instead of a hex string.
Definition at line 500 of file niml_md5.c. References file, MD5_to_B64(), MD5Final(), MD5Init(), and MD5Update().
00501 {
00502 FILE *file;
00503 MD5_CTX context;
00504 int len;
00505 unsigned char buffer[1024] ;
00506 unsigned char digest[16] ;
00507
00508 if( (file=fopen (filename, "rb")) == NULL ) return NULL ;
00509
00510 MD5Init( &context ) ;
00511
00512 while( len = fread(buffer, 1, 1024, file) )
00513 MD5Update( &context, buffer, len ) ;
00514
00515 MD5Final( digest, &context );
00516 fclose (file);
00517
00518 return MD5_to_B64( digest ) ;
00519 }
|
|
|
Return the MD5 hash of a C string as a Base64 string, instead of a hex string. strlen(result) is 22 instead of 32 result is malloc()-ed and should be free()-d when appropriate ------------------------------------------------------------------------------ Definition at line 487 of file niml_md5.c. References MD5_B64_array().
00488 {
00489 if( string == NULL ) string = "ElvisTheKing" ;
00490 return MD5_B64_array( strlen(string) , string ) ;
00491 }
|
|
||||||||||||
|
Digest an array and returns the printable string of the result, stored in a malloc()-ed array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 372 of file niml_md5.c. References malloc, and MD5_static_array().
00373 {
00374 char *st , *dy ;
00375 st = MD5_static_array( n , bytes ) ;
00376 if( st == NULL ) return NULL ;
00377 dy = (char *) malloc(33) ; strcpy(dy,st) ; return dy ;
00378 }
|
|
|
Digests a file and prints the result, stored in a malloc()-ed array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 433 of file niml_md5.c. References malloc, and MD5_static_file().
00434 {
00435 char *st , *dy ;
00436
00437 st = MD5_static_file( filename ) ;
00438 if( st == NULL ) return NULL ;
00439 dy = (char *) malloc(33) ; strcpy(dy,st) ; return dy ;
00440 }
|
|
|
Digest a C string and returns the printable string of the result, stored in a malloc()-ed array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 396 of file niml_md5.c. References MD5_malloc_array().
00397 {
00398 if( string == NULL ) string = "ElvisTheKing" ;
00399 return MD5_malloc_array( strlen(string)+1 , string ) ;
00400 }
|
|
||||||||||||
|
Digest an array and returns the printable string of the result, stored in a static array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 353 of file niml_md5.c. References MD5_static_printf(), MD5Final(), MD5Init(), and MD5Update().
00354 {
00355 MD5_CTX context;
00356 unsigned char digest[16];
00357
00358 if( n < 0 || bytes == NULL ) return NULL ;
00359
00360 MD5Init( &context ) ;
00361 MD5Update( &context, (unsigned char *)bytes, n ) ;
00362 MD5Final( digest, &context ) ;
00363
00364 return MD5_static_printf(digest) ;
00365 }
|
|
|
Digests a file and prints the result, stored in a static array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 407 of file niml_md5.c. References file, MD5_static_printf(), MD5Final(), MD5Init(), and MD5Update().
00408 {
00409 FILE *file;
00410 MD5_CTX context;
00411 int len;
00412 unsigned char buffer[1024] ;
00413 unsigned char digest[16] ;
00414
00415 if( (file = fopen(filename, "rb")) == NULL ) return NULL ;
00416
00417 MD5Init( &context ) ;
00418
00419 while( len = fread(buffer, 1, 1024, file) )
00420 MD5Update( &context, buffer, len ) ;
00421
00422 MD5Final( digest, &context );
00423 fclose (file);
00424
00425 return MD5_static_printf( digest ) ;
00426 }
|
|
|
Function to print a 128 bit digest into a static 32 char string. ------------------------------------------------------------------------ Definition at line 333 of file niml_md5.c.
00334 {
00335 static char st[33] ;
00336
00337 sprintf(st,
00338 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" ,
00339 digest[0] , digest[1] , digest[2] , digest[3] , digest[4] ,
00340 digest[5] , digest[6] , digest[7] , digest[8] , digest[9] ,
00341 digest[10], digest[11], digest[12], digest[13], digest[14],
00342 digest[15]
00343 ) ;
00344
00345 return st ;
00346 }
|
|
|
Digest a C string and returns the printable string of the result, stored in a static array (length=32+1 bytes). ------------------------------------------------------------------------ Definition at line 385 of file niml_md5.c. References MD5_static_array().
00386 {
00387 if( string == NULL ) string = "ElvisTheKing" ;
00388 return MD5_static_array( strlen(string) , string ) ;
00389 }
|
|
|
Convert a MD5 hex string to a Base64-ed string. strlen(result) is 22 instead of 32 result is malloc()-ed and should be free()-d when appropriate ------------------------------------------------------------------------------ Definition at line 448 of file niml_md5.c. References B64_to_base64().
00449 {
00450 int nb64=0 ; byte *b64=NULL ;
00451
00452 B64_to_base64( 16 , (byte *)digest , &nb64 , &b64 ) ;
00453 if( nb64 <= 0 || b64 == NULL ) return NULL ;
00454 b64[nb64-3] = '\0' ; /* remove trailing "==" */
00455 if( isspace(b64[nb64-4]) ) b64[nb64-4]='\0' ;
00456 return (char *)b64 ;
00457 }
|
|
||||||||||||
|
MD5 finalization. Ends an MD5 message-digest operation, writing the the message digest and zeroizing the context. ------------------------------------------------------------------------ Definition at line 170 of file niml_md5.c. References MD5_CTX::count, Encode(), MD5Update(), PADDING, POINTER, and MD5_CTX::state. Referenced by MD5_B64_array(), MD5_B64_file(), MD5_static_array(), MD5_static_file(), and UUID_hashcode().
00171 {
00172 unsigned char bits[8];
00173 unsigned int index, padLen;
00174
00175 /* Save number of bits */
00176
00177 Encode (bits, context->count, 8);
00178
00179 /* Pad out to 56 mod 64. */
00180
00181 index = (unsigned int)((context->count[0] >> 3) & 0x3f);
00182 padLen = (index < 56) ? (56 - index) : (120 - index);
00183 MD5Update (context, PADDING, padLen);
00184
00185 /* Append length (before padding) */
00186
00187 MD5Update (context, bits, 8);
00188
00189 /* Store state in digest */
00190
00191 Encode (digest, context->state, 16);
00192
00193 /* Zeroize sensitive information. */
00194
00195 memset ((POINTER)context, 0, sizeof (*context));
00196 }
|
|
|
MD5 initialization. Begins an MD5 operation, writing a new context. ------------------------------------------------------------------------ Definition at line 107 of file niml_md5.c. References MD5_CTX::count, and MD5_CTX::state. Referenced by MD5_B64_array(), MD5_B64_file(), MD5_static_array(), MD5_static_file(), and UUID_hashcode().
|
|
||||||||||||
|
MD5 basic transformation. Transforms state based on block. ------------------------------------------------------------------------ Definition at line 202 of file niml_md5.c. References a, c, Decode(), FF, GG, HH, II, S11, S12, S13, S14, S21, S22, S23, S24, S31, S32, S33, S34, S41, S42, S43, and S44.
00203 {
00204 UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
00205
00206 Decode (x, block, 64);
00207
00208 /* Round 1 */
00209
00210 FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
00211 FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
00212 FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
00213 FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
00214 FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
00215 FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
00216 FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
00217 FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
00218 FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
00219 FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
00220 FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
00221 FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
00222 FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
00223 FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
00224 FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
00225 FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
00226
00227 /* Round 2 */
00228
00229 GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
00230 GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
00231 GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
00232 GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
00233 GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
00234 GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
00235 GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
00236 GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
00237 GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
00238 GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
00239 GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
00240 GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
00241 GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
00242 GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
00243 GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
00244 GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
00245
00246 /* Round 3 */
00247
00248 HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
00249 HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
00250 HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
00251 HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
00252 HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
00253 HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
00254 HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
00255 HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
00256 HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
00257 HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
00258 HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
00259 HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
00260 HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
00261 HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
00262 HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
00263 HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
00264
00265 /* Round 4 */
00266
00267 II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
00268 II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
00269 II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
00270 II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
00271 II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
00272 II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
00273 II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
00274 II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
00275 II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
00276 II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
00277 II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
00278 II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
00279 II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
00280 II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
00281 II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
00282 II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
00283
00284 state[0] += a;
00285 state[1] += b;
00286 state[2] += c;
00287 state[3] += d;
00288
00289 /* Zeroize sensitive information. */
00290
00291 memset ((POINTER)x, 0, sizeof (x));
00292 }
|
|
||||||||||||||||
|
MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. ------------------------------------------------------------------------ Definition at line 125 of file niml_md5.c. References MD5_CTX::buffer, MD5_CTX::count, i, MD5Transform(), POINTER, and MD5_CTX::state. Referenced by MD5_B64_array(), MD5_B64_file(), MD5_static_array(), MD5_static_file(), MD5Final(), and UUID_hashcode().
00127 {
00128 unsigned int i, index, partLen;
00129
00130 /* Compute number of bytes mod 64 */
00131
00132 index = (unsigned int)((context->count[0] >> 3) & 0x3F);
00133
00134 /* Update number of bits */
00135
00136 if( (context->count[0] += ((UINT4)inputLen << 3)) < ((UINT4)inputLen << 3) )
00137 context->count[1]++;
00138
00139 context->count[1] += ((UINT4)inputLen >> 29);
00140
00141 partLen = 64 - index;
00142
00143 /* Transform as many times as possible. */
00144
00145 if (inputLen >= partLen) {
00146
00147 memcpy ((POINTER)&context->buffer[index], (POINTER)input, partLen);
00148
00149 MD5Transform (context->state, context->buffer);
00150
00151 for (i = partLen; i + 63 < inputLen; i += 64)
00152 MD5Transform (context->state, &input[i]);
00153
00154 index = 0;
00155 }
00156 else
00157 i = 0;
00158
00159 /* Buffer remaining input */
00160
00161 memcpy ((POINTER)&context->buffer[index], (POINTER)&input[i],
00162 inputLen-i);
00163 }
|
Variable Documentation
|
|
Initial value: {
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
}Definition at line 59 of file niml_md5.c. Referenced by MD5Final(). |