34 #if defined(POLARSSL_MD2_C)
38 #if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST)
42 #if !defined(POLARSSL_MD2_ALT)
44 static const unsigned char PI_SUBST[256] =
46 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36,
47 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3,
48 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C,
49 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16,
50 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E,
51 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E,
52 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2,
53 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
54 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E,
55 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3,
56 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56,
57 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6,
58 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D,
59 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65,
60 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0,
61 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
62 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C,
63 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E,
64 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81,
65 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA,
66 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88,
67 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE,
68 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58,
69 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
70 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99,
71 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14
79 memset( ctx->
cksum, 0, 16 );
80 memset( ctx->
state, 0, 46 );
81 memset( ctx->
buffer, 0, 16 );
90 for( i = 0; i < 16; i++ )
97 for( i = 0; i < 18; i++ )
99 for( j = 0; j < 48; j++ )
101 ctx->
state[j] = (
unsigned char)
102 ( ctx->
state[j] ^ PI_SUBST[t] );
106 t = (
unsigned char)( t + i );
111 for( i = 0; i < 16; i++ )
113 ctx->
cksum[i] = (
unsigned char)
128 if( ctx->
left + ilen > 16 )
129 fill = 16 - ctx->
left;
133 memcpy( ctx->
buffer + ctx->
left, input, fill );
139 if( ctx->
left == 16 )
155 x = (
unsigned char)( 16 - ctx->
left );
157 for( i = ctx->
left; i < 16; i++ )
165 memcpy( output, ctx->
state, 16 );
173 void md2(
const unsigned char *input,
size_t ilen,
unsigned char output[16] )
184 #if defined(POLARSSL_FS_IO)
188 int md2_file(
const char *path,
unsigned char output[16] )
193 unsigned char buf[1024];
195 if( ( f = fopen( path,
"rb" ) ) == NULL )
200 while( ( n = fread( buf, 1,
sizeof( buf ), f ) ) > 0 )
207 if( ferror( f ) != 0 )
224 unsigned char sum[16];
228 md2( key, keylen, sum );
233 memset( ctx->
ipad, 0x36, 16 );
234 memset( ctx->
opad, 0x5C, 16 );
236 for( i = 0; i < keylen; i++ )
238 ctx->
ipad[i] = (
unsigned char)( ctx->
ipad[i] ^ key[i] );
239 ctx->
opad[i] = (
unsigned char)( ctx->
opad[i] ^ key[i] );
245 memset( sum, 0,
sizeof( sum ) );
261 unsigned char tmpbuf[16];
269 memset( tmpbuf, 0,
sizeof( tmpbuf ) );
284 void md2_hmac(
const unsigned char *key,
size_t keylen,
285 const unsigned char *input,
size_t ilen,
286 unsigned char output[16] )
297 #if defined(POLARSSL_SELF_TEST)
302 static const char md2_test_str[7][81] =
307 {
"message digest" },
308 {
"abcdefghijklmnopqrstuvwxyz" },
309 {
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
310 {
"12345678901234567890123456789012345678901234567890123456789012" \
311 "345678901234567890" }
314 static const unsigned char md2_test_sum[7][16] =
316 { 0x83, 0x50, 0xE5, 0xA3, 0xE2, 0x4C, 0x15, 0x3D,
317 0xF2, 0x27, 0x5C, 0x9F, 0x80, 0x69, 0x27, 0x73 },
318 { 0x32, 0xEC, 0x01, 0xEC, 0x4A, 0x6D, 0xAC, 0x72,
319 0xC0, 0xAB, 0x96, 0xFB, 0x34, 0xC0, 0xB5, 0xD1 },
320 { 0xDA, 0x85, 0x3B, 0x0D, 0x3F, 0x88, 0xD9, 0x9B,
321 0x30, 0x28, 0x3A, 0x69, 0xE6, 0xDE, 0xD6, 0xBB },
322 { 0xAB, 0x4F, 0x49, 0x6B, 0xFB, 0x2A, 0x53, 0x0B,
323 0x21, 0x9F, 0xF3, 0x30, 0x31, 0xFE, 0x06, 0xB0 },
324 { 0x4E, 0x8D, 0xDF, 0xF3, 0x65, 0x02, 0x92, 0xAB,
325 0x5A, 0x41, 0x08, 0xC3, 0xAA, 0x47, 0x94, 0x0B },
326 { 0xDA, 0x33, 0xDE, 0xF2, 0xA4, 0x2D, 0xF1, 0x39,
327 0x75, 0x35, 0x28, 0x46, 0xC3, 0x03, 0x38, 0xCD },
328 { 0xD5, 0x97, 0x6F, 0x79, 0xD8, 0x3D, 0x3A, 0x0D,
329 0xC9, 0x80, 0x6C, 0x3C, 0x66, 0xF3, 0xEF, 0xD8 }
338 unsigned char md2sum[16];
340 for( i = 0; i < 7; i++ )
343 printf(
" MD2 test #%d: ", i + 1 );
345 md2( (
unsigned char *) md2_test_str[i],
346 strlen( md2_test_str[i] ), md2sum );
348 if( memcmp( md2sum, md2_test_sum[i], 16 ) != 0 )
351 printf(
"failed\n" );
357 printf(
"passed\n" );
void md2_update(md2_context *ctx, const unsigned char *input, size_t ilen)
MD2 process buffer.
void md2_process(md2_context *ctx)
void md2_hmac_update(md2_context *ctx, const unsigned char *input, size_t ilen)
MD2 HMAC process buffer.
Configuration options (set of defines)
void md2(const unsigned char *input, size_t ilen, unsigned char output[16])
Output = MD2( input buffer )
void md2_hmac_finish(md2_context *ctx, unsigned char output[16])
MD2 HMAC final digest.
int md2_file(const char *path, unsigned char output[16])
Output = MD2( file contents )
#define POLARSSL_ERR_MD2_FILE_IO_ERROR
Read/write error in file.
int md2_self_test(int verbose)
Checkup routine.
void md2_starts(md2_context *ctx)
MD2 context setup.
void md2_hmac_starts(md2_context *ctx, const unsigned char *key, size_t keylen)
MD2 HMAC context setup.
void md2_hmac(const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[16])
Output = HMAC-MD2( hmac key, input buffer )
void md2_hmac_reset(md2_context *ctx)
MD2 HMAC context reset.
void md2_finish(md2_context *ctx, unsigned char output[16])
MD2 final digest.
MD2 message digest algorithm (hash function)