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1: //*********************************************************
2: // プロジェクト: TOOLS::MD4 - Message-Digest Algorithm
3: // ファイル名: md4.cpp
4: //*********************************************************
5: #include <misc/md4.h> //
6: #include <header/tooldbg.h> // ASSERT(),
7: #include <header/toolbase.h> //
8: #include <header/snprintf.h> // snprintf(), vsnprintf(),
9: #include <limits.h> // CHAR_BIT,
10:
11:
12: //---------------------------------------------------------
13: // テスト関数 の 宣言
14: //---------------------------------------------------------
15: DECLARE_TESTPROC( test_md4 );
16:
17:
18: //---------------------------------------------------------
19: // 定数型マクロ の 定義
20: //---------------------------------------------------------
21: #define DBG_ALLOCNAME "MD4_CreateAlgorithm"
22:
23: //
24: #define S11 3
25: #define S12 7
26: #define S13 11
27: #define S14 19
28: #define S21 3
29: #define S22 5
30: #define S23 9
31: #define S24 13
32: #define S31 3
33: #define S32 9
34: #define S33 11
35: #define S34 15
36:
37:
38: //---------------------------------------------------------
39: // 関数型マクロ の 定義
40: //---------------------------------------------------------
41: // F, G, H are basic MD4 functions.
42: static inline DWORD F( DWORD x, DWORD y, DWORD z ){ return (x & y) | (~x & z); }
43: static inline DWORD G( DWORD x, DWORD y, DWORD z ){ return (x & y) | (x & z) | (y & z); }
44: static inline DWORD H( DWORD x, DWORD y, DWORD z ){ return x ^ y ^ z; }
45:
46: // ROTATE_LEFT rotates x left n bits.
47: static inline DWORD ROTATE_LEFT( DWORD x, DWORD n ){ return (x << n) | (x >> ((CHAR_BIT * sizeof(DWORD)) - n)); }
48:
49: // MD4_MAKEDWORD
50: static inline DWORD MD4_MAKEDWORD( BYTE b1, BYTE b2, BYTE b3, BYTE b4 ){ return b1 | (b2 << 8) | (b3 << 16) | (b4 << 24); }
51:
52:
53: //---------------------------------------------------------
54: // 構造体 の 宣言
55: //---------------------------------------------------------
56: typedef struct MD4_CTX_tag
57: {
58: DWORD state[ 4 ]; // 16bits
59: DWORD count[ 2 ]; // 8bits
60: BYTE buffer[ 64 ]; // 64bits
61: } MD4_CTX;
62:
63:
64: //---------------------------------------------------------
65: // ファイルスコープ関数 の 宣言
66: //---------------------------------------------------------
67: static void MD4_Transform( DWORD state[4], const BYTE block[64], int count );
68: static bool MD4_Encode( BYTE *output, int bufsize, const DWORD *input, int len );
69: static void MD4_Decode( DWORD *output, int bufsize, const BYTE *input, int len );
70: static bool MD4_IsValidContext( const MD4_CTX *context );
71:
72:
73: //---------------------------------------------------------
74: // ファイルスコープ変数 の 定義
75: //---------------------------------------------------------
76: static const BYTE PADDING[ 64 ] =
77: {
78: 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
79: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
80: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
81: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
82: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
83: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
85: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
86: };
87:
88:
89: //*********************************************************
90: // MD4_CreateAlgorithm
91: //*********************************************************
92: MD4_CTX *
93: MD4_CreateAlgorithm
94: (
95: void
96: )
97: {
98: CALLONCE_TESTPROC( test_md4 ); // [テスト]
99:
100: MD4_CTX *context = (MD4_CTX *)malloc( sizeof( *context ) );
101: if ( !context )
102: return null;
103:
104: MD4_InitData( context );
105: ASSERT( MD4_IsValidContext( context ) );
106:
107: DBG_LOCK_ALLOCED_MEMORY( context, DBG_ALLOCNAME ); // [DBG]
108: return context;
109: }//MD4_CreateAlgorithm
110:
111: //*********************************************************
112: // MD4_DestroyAlgorithm
113: //*********************************************************
114: bool
115: MD4_DestroyAlgorithm
116: (
117: MD4_CTX *context
118: )
119: {
120: // パラメタの仮定
121: ASSERT( MD4_IsValidContext( context ) );
122:
123: DBG_UNLOCK_ALLOCED_MEMORY( context, DBG_ALLOCNAME ); // [DBG]
124: free( context );
125:
126: return true;
127: }//MD4_DestroyAlgorithm
128:
129: //*********************************************************
130: // MD4_InitData
131: //*********************************************************
132: bool
133: MD4_InitData
134: (
135: MD4_CTX *context
136: )
137: {
138: // パラメタの仮定
139: ASSERT( IsValidPtr( context, sizeof( *context ) ) );
140:
141: context->count[ 0 ] = 0;
142: context->count[ 1 ] = 0;
143:
144: context->state[ 0 ] = 0x67452301;
145: context->state[ 1 ] = 0xefcdab89;
146: context->state[ 2 ] = 0x98badcfe;
147: context->state[ 3 ] = 0x10325476;
148:
149: ASSERT( MD4_IsValidContext( context ) );
150: return true;
151: }//MD4_InitData
152:
153: //*********************************************************
154: // MD4_AddData
155: //*********************************************************
156: bool
157: MD4_AddData
158: (
159: MD4_CTX *context,
160: const void *data,
161: int length
162: )
163: {
164: // パラメタの仮定
165: ASSERT( MD4_IsValidContext( context ) );
166: ASSERT( 0 < length );
167: ASSERT( IsValidReadPtr( data, length ) );
168:
169: //
170: const BYTE *p = (BYTE *)data;
171: const UINT index = static_cast<UINT>( 0x3F & (context->count[ 0 ] >> 3) );
172:
173: //
174: context->count[ 0 ] += ((DWORD)length << 3);
175: if ( context->count[ 0 ] < ((DWORD)length << 3) )
176: {
177: context->count[ 1 ]++;
178: }
179: context->count[ 1 ] += ((DWORD)length >> 29);
180:
181: //
182: const UINT partLen = 64 - index;
183:
184: //
185: if ( (DWORD)length < partLen )
186: {
187: memcpy( &context->buffer[ index ], &p[ 0 ], length );
188: }
189: else
190: {
191: memcpy( &context->buffer[ index ], p, partLen );
192: MD4_Transform( context->state, context->buffer, 64 );
193:
194: UINT i;
195: for( i = partLen; i + 63 < (DWORD)length; i += 64 )
196: {
197: MD4_Transform( context->state, &p[ i ], 64 );
198: }
199:
200: memcpy( &context->buffer[ 0 ], &p[ i ], length-i );
201: }
202:
203: return true;
204: }//MD4_AddData
205:
206: //*********************************************************
207: // MD4_GetHash
208: // bufsize = numof(bits)
209: //*********************************************************
210: bool
211: MD4_GetHash
212: (
213: const MD4_CTX *context,
214: void *digest,
215: int bufsize
216: )
217: {
218: // パラメタの仮定
219: ASSERT( MD4_IsValidContext( context ) );
220: ASSERT( 0 < bufsize );
221: ASSERT( IsValidPtr( digest, bufsize ) );
222: DESTROY_BUFFER( digest, bufsize );
223:
224: //
225: BYTE bits[ 8 ];
226: MD4_Encode( bits, sizeof( bits ), context->count, numof( context->count ) );
227: const UINT index = static_cast<UINT>( 0x3F & (context->count[ 0 ] >> 3) );
228: const UINT padLen = (index < 56) ? (56 - index) : (120 - index);
229:
230: MD4_CTX tmp_context;
231: memcpy( &tmp_context, context, sizeof( *context ) );
232: context = null;
233:
234: MD4_AddData( &tmp_context, PADDING, padLen );
235: MD4_AddData( &tmp_context, bits, sizeof( bits ) );
236: MD4_Encode( (BYTE *)digest, bufsize, tmp_context.state, numof( tmp_context.state ) );
237:
238: return true;
239: }//MD4_GetHash
240:
241: //*********************************************************
242: // MD4_GetHashText
243: //*********************************************************
244: bool
245: MD4_GetHashText
246: (
247: const MD4_CTX *context,
248: char *buffer,
249: int bufsize
250: )
251: {
252: // パラメタの仮定
253: ASSERT( MD4_IsValidContext( context ) );
254: ASSERT( 0 < bufsize );
255: ASSERT( IsValidStringBufferPtr( buffer, bufsize ) );
256: DESTROY_TEXT_BUFFER( buffer, bufsize );
257:
258: //
259: BYTE md4[ MD4_HASHSIZE ];
260: VERIFY( MD4_GetHash( context, md4, sizeof( md4 ) ) );
261:
262: //
263: char text[ 1+MD4_HASHTEXTSIZE ];
264: {
265: char *p = text;
266: {for( int i = 0; i < numof( md4 ); ++i )
267: {
268: snprintf( p, numof(text) - (p - text), "%02x", md4[ i ] );
269: p = strtail( p );
270: }}
271: }
272:
273: //
274: memcpy( buffer, text, min( bufsize, sizeof( text ) ) );
275: buffer[ min( bufsize, numof( text ) ) - 1 ] = '\0';
276:
277:
278: return true;
279: }//MD4_GetHashText
280:
281:
282: //******************************************************************************************************************
283: //
284: //******************************************************************************************************************
285: static inline DWORD R1( DWORD a, DWORD b, DWORD c, DWORD d, DWORD x, DWORD s ){ a += F( b, c, d ) + x; a = ROTATE_LEFT( a, s ); return a; }
286: static inline DWORD R2( DWORD a, DWORD b, DWORD c, DWORD d, DWORD x, DWORD s ){ a += G( b, c, d ) + x + 0x5a827999; a = ROTATE_LEFT( a, s ); return a; }
287: static inline DWORD R3( DWORD a, DWORD b, DWORD c, DWORD d, DWORD x, DWORD s ){ a += H( b, c, d ) + x + 0x6ed9eba1; a = ROTATE_LEFT( a, s ); return a; }
288:
289:
290: //*********************************************************
291: // MD4_IsValidContext
292: //*********************************************************
293: static
294: bool
295: MD4_IsValidContext
296: (
297: const MD4_CTX *context
298: )
299: {
300: VALID_TEST( context );
301: VALID_TEST( IsValidReadPtr( context, sizeof( *context ) ) );
302: VALID_TEST( 0 == (0x03 & context->count[ 0 ]) );
303: // VALID_TEST( 0 == context->count[ 1 ] );
304:
305: return true;
306: }//MD4_IsValidContext
307:
308: //*********************************************************
309: // MD4_Transform
310: //*********************************************************
311: static
312: void
313: MD4_Transform
314: (
315: DWORD *state,
316: const BYTE *block,
317: int count
318: )
319: {
320: DWORD x[ 16 ];
321: DWORD a = state[ 0 ];
322: DWORD b = state[ 1 ];
323: DWORD c = state[ 2 ];
324: DWORD d = state[ 3 ];
325:
326: MD4_Decode( x, numof( x ), block, count );
327:
328: // Round 1
329: {
330: a = R1( a, b, c, d, x[ 0], S11 );
331: d = R1( d, a, b, c, x[ 1], S12 );
332: c = R1( c, d, a, b, x[ 2], S13 );
333: b = R1( b, c, d, a, x[ 3], S14 );
334:
335: a = R1( a, b, c, d, x[ 4], S11 );
336: d = R1( d, a, b, c, x[ 5], S12 );
337: c = R1( c, d, a, b, x[ 6], S13 );
338: b = R1( b, c, d, a, x[ 7], S14 );
339:
340: a = R1( a, b, c, d, x[ 8], S11 );
341: d = R1( d, a, b, c, x[ 9], S12 );
342: c = R1( c, d, a, b, x[10], S13 );
343: b = R1( b, c, d, a, x[11], S14 );
344:
345: a = R1( a, b, c, d, x[12], S11 );
346: d = R1( d, a, b, c, x[13], S12 );
347: c = R1( c, d, a, b, x[14], S13 );
348: b = R1( b, c, d, a, x[15], S14 );
349: }
350:
351: // Round 2
352: {
353: a = R2( a, b, c, d, x[ 0], S21 );
354: d = R2( d, a, b, c, x[ 4], S22 );
355: c = R2( c, d, a, b, x[ 8], S23 );
356: b = R2( b, c, d, a, x[12], S24 );
357:
358: a = R2( a, b, c, d, x[ 1], S21 );
359: d = R2( d, a, b, c, x[ 5], S22 );
360: c = R2( c, d, a, b, x[ 9], S23 );
361: b = R2( b, c, d, a, x[13], S24 );
362:
363: a = R2( a, b, c, d, x[ 2], S21 );
364: d = R2( d, a, b, c, x[ 6], S22 );
365: c = R2( c, d, a, b, x[10], S23 );
366: b = R2( b, c, d, a, x[14], S24 );
367:
368: a = R2( a, b, c, d, x[ 3], S21 );
369: d = R2( d, a, b, c, x[ 7], S22 );
370: c = R2( c, d, a, b, x[11], S23 );
371: b = R2( b, c, d, a, x[15], S24 );
372: }
373:
374: // Round 3
375: {
376: a = R3( a, b, c, d, x[ 0], S31 );
377: d = R3( d, a, b, c, x[ 8], S32 );
378: c = R3( c, d, a, b, x[ 4], S33 );
379: b = R3( b, c, d, a, x[12], S34 );
380:
381: a = R3( a, b, c, d, x[ 2], S31 );
382: d = R3( d, a, b, c, x[10], S32 );
383: c = R3( c, d, a, b, x[ 6], S33 );
384: b = R3( b, c, d, a, x[14], S34 );
385:
386: a = R3( a, b, c, d, x[ 1], S31 );
387: d = R3( d, a, b, c, x[ 9], S32 );
388: c = R3( c, d, a, b, x[ 5], S33 );
389: b = R3( b, c, d, a, x[13], S34 );
390:
391: a = R3( a, b, c, d, x[ 3], S31 );
392: d = R3( d, a, b, c, x[11], S32 );
393: c = R3( c, d, a, b, x[ 7], S33 );
394: b = R3( b, c, d, a, x[15], S34 );
395: }
396:
397: state[ 0 ] += a;
398: state[ 1 ] += b;
399: state[ 2 ] += c;
400: state[ 3 ] += d;
401: }//MD4_Transform
402:
403: //*********************************************************
404: // MD4_Encode
405: // length == sizeof(src)
406: //*********************************************************
407: static
408: bool
409: MD4_Encode
410: (
411: BYTE *dst,
412: int bufsize,
413: const DWORD *src,
414: int count
415: )
416: {
417: {for( int i = 0; (0 < bufsize) && (i < count); ++i )
418: {
419: *dst++ = static_cast<BYTE>( 0xFF & *src );
420: if ( --bufsize <= 0 )
421: return true;
422:
423: *dst++ = static_cast<BYTE>( 0xFF & (*src >> 8) );
424: if ( --bufsize <= 0 )
425: return true;
426:
427: *dst++ = static_cast<BYTE>( 0xFF & (*src >> 16) );
428: if ( --bufsize <= 0 )
429: return true;
430:
431: *dst++ = static_cast<BYTE>( 0xFF & (*src >> 24) );
432: if ( --bufsize <= 0 )
433: return true;
434:
435: ++src;
436: }}
437:
438: return true;
439: }//MD4_Encode
440:
441: //*********************************************************
442: // MD4_Decode
443: // length == sizeof(dst)
444: //*********************************************************
445: static
446: void
447: MD4_Decode
448: (
449: DWORD *dst,
450: int count,
451: const BYTE *src,
452: int length
453: )
454: {
455: {for( int i = 0; i < min(count, (int)(length / sizeof(DWORD))); ++i )
456: {
457: *dst++ = MD4_MAKEDWORD( src[ 0 ], src[ 1 ], src[ 2 ], src[ 3 ] );
458: src += sizeof(DWORD);
459: }}
460:
461: }//MD4_Decode
462:
463:
464: //******************************************************************************************************************
465: // TEST
466: //******************************************************************************************************************
467:
468:
469: #ifdef _DEBUG // デバッグ時のみ
470:
471:
472: //*********************************************************
473: // test_md4
474: //*********************************************************
475: DEFINE_TESTPROC( test_md4 )
476: {
477: //---------------------------------------------------------
478: // 定数 の テスト
479: //---------------------------------------------------------
480:
481: //---------------------------------------------------------
482: // ファイルスコープ関数 の テスト
483: //---------------------------------------------------------
484:
485: //---------------------------------------------------------
486: // 公開関数 の テスト
487: //---------------------------------------------------------
488:
489: static const BYTE testcase[] =
490: {
491: 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF,
492: 0xCB, 0xD9, 0xCC, 0x90, 0x6B, 0xA7, 0x8C, 0xA2, 0xE6, 0xF2, 0xF4, 0x77, 0x61, 0xBC, 0x89, 0xEF,
493: 0xBE, 0x9F, 0x2B, 0x7D, 0x59, 0x0E, 0x0D, 0x27, 0xF9, 0x87, 0x75, 0xD2, 0x18, 0x8E, 0x2B, 0x3D,
494: 0x63, 0x35, 0xF4, 0x93, 0x8A, 0xCA, 0xD2, 0xF2, 0xA4, 0xB9, 0x0A, 0xDD, 0x3B, 0x21, 0x4F, 0x14,
495: 0x69, 0x34, 0x28, 0x4A, 0xB5, 0x64, 0xF0, 0xB5, 0x31, 0x46, 0x1A, 0x02, 0x3C, 0xE1, 0xC8, 0xC8,
496: 0xEE, 0x85, 0xA9, 0x98, 0x78, 0x39, 0x8B, 0x15, 0x5B, 0xF6, 0x0B, 0x79, 0xCA, 0xDA, 0xBA, 0x69,
497: 0x9F, 0xAB, 0xD6, 0xC2, 0x78, 0xAA, 0x30, 0x04, 0x9A, 0xD1, 0xA7, 0x05, 0x66, 0xCB, 0x01, 0x87,
498: 0x6C, 0xC3, 0x10, 0xCE, 0xF9, 0xF2, 0x01, 0x18, 0x03, 0xFD, 0x61, 0xF5, 0xC5, 0x92, 0xA8, 0x41,
499: 0x97, 0x0A, 0x86, 0x0D, 0x10, 0xB0, 0x77, 0x29, 0x4E, 0x96, 0x10, 0xC4, 0xDF, 0x26, 0xB6, 0xE7,
500: 0x48, 0xFD, 0xF3, 0x1A, 0x79, 0x85, 0x96, 0x82, 0x3D, 0x5A, 0xD4, 0x58, 0xB2, 0x9A, 0xC4, 0x26,
501: 0x02, 0xBD, 0x48, 0x6C, 0xFD, 0x9C, 0x4A, 0x87, 0xF5, 0xF6, 0x50, 0x38, 0x98, 0x74, 0x60, 0x04,
502: 0xB9, 0x13, 0xEE, 0x2E, 0xCD, 0x95, 0x49, 0x50, 0x61, 0x46, 0xA9, 0xCF, 0x80, 0x07, 0x22, 0x9B,
503: 0x6E, 0x78, 0x01, 0x95, 0xFA, 0x78, 0xFA, 0xF2, 0x4F, 0x98, 0x01, 0x36, 0xE7, 0x63, 0x0D, 0xB9,
504: 0x4C, 0x8F, 0x2D, 0x05, 0x8D, 0x2E, 0x34, 0x08, 0x84, 0x8B, 0x3A, 0xDB, 0x47, 0xC2, 0xF0, 0xA9,
505: 0x06, 0x8C, 0x16, 0xA9, 0xCB, 0x2A, 0x08, 0x04, 0xB1, 0xDF, 0xFC, 0x82, 0xF6, 0xD3, 0xE1, 0x20,
506: 0xA5, 0x7B, 0xDC, 0x62, 0xCE, 0x74, 0x8B, 0xBB, 0xB2, 0xFA, 0xA0, 0xFC, 0x54, 0x88, 0xBF, 0x2E,
507: 0xFC, 0x15, 0x0B, 0xFC, 0x15, 0x90, 0x1E, 0x54, 0xD0, 0x87, 0xDA, 0x35, 0xDB, 0x29, 0x85, 0xF4,
508: 0xC6, 0xD0, 0x99, 0x42, 0x0C, 0xF8, 0xD8, 0xE7, 0xBC, 0x2A, 0x8E, 0x4F, 0xFE, 0xC2, 0x32, 0xFB,
509: 0x4C, 0x60, 0x93, 0xB4, 0x07, 0xAB, 0x53, 0x25, 0xFD, 0x61, 0x90, 0x1D, 0xA4, 0xC9, 0xAD, 0xF0,
510: 0x62, 0x82, 0x1B, 0xC7, 0xD7, 0xB2, 0xB6, 0x9F, 0xB7, 0x2B, 0x68, 0x70, 0x24, 0x8D, 0x8C, 0x27,
511: 0x88, 0x04, 0xB1, 0xEC, 0xAE, 0x64, 0x49, 0xD0, 0x8D, 0xCF, 0x2C, 0xA8, 0xFB, 0x40, 0x1A, 0x6E,
512: 0xDF, 0xF1, 0x44, 0x70, 0x44, 0x49, 0xAC, 0x56, 0x56, 0x8E, 0xD4, 0x41, 0x7F, 0x89, 0x95, 0x00,
513: 0x23, 0xAF, 0x80, 0xD3, 0x4A, 0x3B, 0xEA, 0x77, 0x9A, 0x8E, 0x91, 0x5E, 0xEC, 0x2F, 0x69, 0xC5,
514: 0xEB, 0xC1, 0xFD, 0xFA, 0x58, 0x55, 0x2C, 0x61, 0x9B, 0xC3, 0x49, 0x11, 0xF3, 0xD3, 0x44, 0x84,
515: 0xF7, 0x1F, 0x81, 0xBE, 0x72, 0xA6, 0x4F, 0x97, 0x65, 0xDD, 0x66, 0xB2, 0x08, 0x04, 0xD7, 0xBF,
516: 0xDD, 0x19, 0x2B, 0xF5, 0x29, 0x87, 0x0F, 0x70, 0xED, 0xC9, 0x67, 0xAD, 0xF0, 0x6A, 0xE0, 0xD4,
517: 0x1A, 0x2D, 0x1A, 0x94, 0x53, 0xE8, 0x7E, 0x02, 0x86, 0x2D, 0x49, 0xA3, 0x4B, 0xF1, 0x82, 0x4E,
518: 0xD8, 0xB1, 0x47, 0x33, 0x2E, 0x3D, 0x52, 0x75, 0xBB, 0xC1, 0xA6, 0xEF, 0x17, 0xFD, 0x14, 0xFB,
519: 0x3B, 0xDD, 0x73, 0xDA, 0x1D, 0xBB, 0x3B, 0x4C, 0x6C, 0xA6, 0x58, 0xAB, 0x40, 0xA0, 0x92, 0x61,
520: 0xE0, 0x63, 0xA3, 0x50, 0xAC, 0x0E, 0xBF, 0xEE, 0x7D, 0xE4, 0xF2, 0x12, 0x45, 0x1D, 0xE4, 0x57,
521: 0x8E, 0xE7, 0x10, 0xA7, 0x78, 0xF0, 0x1F, 0x08, 0x75, 0x1B, 0xC4, 0x24, 0x61, 0xCB, 0x21, 0x4F,
522: 0xE8, 0xD6, 0xEB, 0x06, 0xDF, 0x0A, 0xEA, 0x11, 0x4E, 0x22, 0x74, 0xF5, 0x8E, 0x07, 0x3C, 0xB8,
523: };
524:
525: // MD4
526: MD4_CTX *context = MD4_CreateAlgorithm();
527:
528: // 一気にハッシュ
529: {for( int i = 1; (i * MD4_HASHSIZE) < numof( testcase ); ++i )
530: {
531: MD4_InitData( context );
532: MD4_AddData( context, testcase, i * MD4_HASHSIZE );
533:
534: BYTE md4[ MD4_HASHSIZE ];
535: {for( int j = 1; j < numof( md4 ); ++j )
536: {
537: MD4_GetHash( context, md4, j );
538: VERIFY( 0 == memcmp( md4, testcase + (i * MD4_HASHSIZE), j ) );
539: }}
540: }}
541:
542: // 徐々にハッシュ
543: MD4_InitData( context );
544: {for( int i = 1; (i * MD4_HASHSIZE) < numof( testcase ); ++i )
545: {
546: {for( int j = 0; j < MD4_HASHSIZE; ++j )
547: {
548: MD4_AddData( context, &testcase[ j + ((i-1) * MD4_HASHSIZE) ], 1 );
549: }}
550:
551: BYTE md4[ MD4_HASHSIZE ];
552: MD4_GetHash( context, md4, numof( md4 ) );
553: VERIFY( 0 == memcmp( md4, testcase + (i * MD4_HASHSIZE), numof( md4 ) ) );
554: }}
555:
556: VERIFY( MD4_DestroyAlgorithm( context ) );
557:
558: }//test_md4
559:
560:
561: #endif // #ifdef _DEBUG
562:
563:
564: //** end **
565:
参照：
| 水無瀬の部屋 > sample > tools > misc > md4.cpp |
|---|
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