/********************************************************************\ * * FILE: rmd160.c * * CONTENTS: A sample C-implementation of the RIPEMD-160 * hash-function. * TARGET: any computer with an ANSI C compiler * * AUTHOR: Antoon Bosselaers, ESAT-COSIC * DATE: 1 March 1996 * VERSION: 1.0 * * Copyright (c) Katholieke Universiteit Leuven * 1996, All Rights Reserved * \********************************************************************/ #include "ripemd160.h" #include #include #include #define RMDsize 160 /********************************************************************/ void MDinit(dword *MDbuf) { MDbuf[0] = 0x67452301UL; MDbuf[1] = 0xefcdab89UL; MDbuf[2] = 0x98badcfeUL; MDbuf[3] = 0x10325476UL; MDbuf[4] = 0xc3d2e1f0UL; return; } /********************************************************************/ void compress(dword *MDbuf, dword *X) { dword aa = MDbuf[0], bb = MDbuf[1], cc = MDbuf[2], dd = MDbuf[3], ee = MDbuf[4]; dword aaa = MDbuf[0], bbb = MDbuf[1], ccc = MDbuf[2], ddd = MDbuf[3], eee = MDbuf[4]; /* round 1 */ FF(aa, bb, cc, dd, ee, X[ 0], 11); FF(ee, aa, bb, cc, dd, X[ 1], 14); FF(dd, ee, aa, bb, cc, X[ 2], 15); FF(cc, dd, ee, aa, bb, X[ 3], 12); FF(bb, cc, dd, ee, aa, X[ 4], 5); FF(aa, bb, cc, dd, ee, X[ 5], 8); FF(ee, aa, bb, cc, dd, X[ 6], 7); FF(dd, ee, aa, bb, cc, X[ 7], 9); FF(cc, dd, ee, aa, bb, X[ 8], 11); FF(bb, cc, dd, ee, aa, X[ 9], 13); FF(aa, bb, cc, dd, ee, X[10], 14); FF(ee, aa, bb, cc, dd, X[11], 15); FF(dd, ee, aa, bb, cc, X[12], 6); FF(cc, dd, ee, aa, bb, X[13], 7); FF(bb, cc, dd, ee, aa, X[14], 9); FF(aa, bb, cc, dd, ee, X[15], 8); /* round 2 */ GG(ee, aa, bb, cc, dd, X[ 7], 7); GG(dd, ee, aa, bb, cc, X[ 4], 6); GG(cc, dd, ee, aa, bb, X[13], 8); GG(bb, cc, dd, ee, aa, X[ 1], 13); GG(aa, bb, cc, dd, ee, X[10], 11); GG(ee, aa, bb, cc, dd, X[ 6], 9); GG(dd, ee, aa, bb, cc, X[15], 7); GG(cc, dd, ee, aa, bb, X[ 3], 15); GG(bb, cc, dd, ee, aa, X[12], 7); GG(aa, bb, cc, dd, ee, X[ 0], 12); GG(ee, aa, bb, cc, dd, X[ 9], 15); GG(dd, ee, aa, bb, cc, X[ 5], 9); GG(cc, dd, ee, aa, bb, X[ 2], 11); GG(bb, cc, dd, ee, aa, X[14], 7); GG(aa, bb, cc, dd, ee, X[11], 13); GG(ee, aa, bb, cc, dd, X[ 8], 12); /* round 3 */ HH(dd, ee, aa, bb, cc, X[ 3], 11); HH(cc, dd, ee, aa, bb, X[10], 13); HH(bb, cc, dd, ee, aa, X[14], 6); HH(aa, bb, cc, dd, ee, X[ 4], 7); HH(ee, aa, bb, cc, dd, X[ 9], 14); HH(dd, ee, aa, bb, cc, X[15], 9); HH(cc, dd, ee, aa, bb, X[ 8], 13); HH(bb, cc, dd, ee, aa, X[ 1], 15); HH(aa, bb, cc, dd, ee, X[ 2], 14); HH(ee, aa, bb, cc, dd, X[ 7], 8); HH(dd, ee, aa, bb, cc, X[ 0], 13); HH(cc, dd, ee, aa, bb, X[ 6], 6); HH(bb, cc, dd, ee, aa, X[13], 5); HH(aa, bb, cc, dd, ee, X[11], 12); HH(ee, aa, bb, cc, dd, X[ 5], 7); HH(dd, ee, aa, bb, cc, X[12], 5); /* round 4 */ II(cc, dd, ee, aa, bb, X[ 1], 11); II(bb, cc, dd, ee, aa, X[ 9], 12); II(aa, bb, cc, dd, ee, X[11], 14); II(ee, aa, bb, cc, dd, X[10], 15); II(dd, ee, aa, bb, cc, X[ 0], 14); II(cc, dd, ee, aa, bb, X[ 8], 15); II(bb, cc, dd, ee, aa, X[12], 9); II(aa, bb, cc, dd, ee, X[ 4], 8); II(ee, aa, bb, cc, dd, X[13], 9); II(dd, ee, aa, bb, cc, X[ 3], 14); II(cc, dd, ee, aa, bb, X[ 7], 5); II(bb, cc, dd, ee, aa, X[15], 6); II(aa, bb, cc, dd, ee, X[14], 8); II(ee, aa, bb, cc, dd, X[ 5], 6); II(dd, ee, aa, bb, cc, X[ 6], 5); II(cc, dd, ee, aa, bb, X[ 2], 12); /* round 5 */ JJ(bb, cc, dd, ee, aa, X[ 4], 9); JJ(aa, bb, cc, dd, ee, X[ 0], 15); JJ(ee, aa, bb, cc, dd, X[ 5], 5); JJ(dd, ee, aa, bb, cc, X[ 9], 11); JJ(cc, dd, ee, aa, bb, X[ 7], 6); JJ(bb, cc, dd, ee, aa, X[12], 8); JJ(aa, bb, cc, dd, ee, X[ 2], 13); JJ(ee, aa, bb, cc, dd, X[10], 12); JJ(dd, ee, aa, bb, cc, X[14], 5); JJ(cc, dd, ee, aa, bb, X[ 1], 12); JJ(bb, cc, dd, ee, aa, X[ 3], 13); JJ(aa, bb, cc, dd, ee, X[ 8], 14); JJ(ee, aa, bb, cc, dd, X[11], 11); JJ(dd, ee, aa, bb, cc, X[ 6], 8); JJ(cc, dd, ee, aa, bb, X[15], 5); JJ(bb, cc, dd, ee, aa, X[13], 6); /* parallel round 1 */ JJJ(aaa, bbb, ccc, ddd, eee, X[ 5], 8); JJJ(eee, aaa, bbb, ccc, ddd, X[14], 9); JJJ(ddd, eee, aaa, bbb, ccc, X[ 7], 9); JJJ(ccc, ddd, eee, aaa, bbb, X[ 0], 11); JJJ(bbb, ccc, ddd, eee, aaa, X[ 9], 13); JJJ(aaa, bbb, ccc, ddd, eee, X[ 2], 15); JJJ(eee, aaa, bbb, ccc, ddd, X[11], 15); JJJ(ddd, eee, aaa, bbb, ccc, X[ 4], 5); JJJ(ccc, ddd, eee, aaa, bbb, X[13], 7); JJJ(bbb, ccc, ddd, eee, aaa, X[ 6], 7); JJJ(aaa, bbb, ccc, ddd, eee, X[15], 8); JJJ(eee, aaa, bbb, ccc, ddd, X[ 8], 11); JJJ(ddd, eee, aaa, bbb, ccc, X[ 1], 14); JJJ(ccc, ddd, eee, aaa, bbb, X[10], 14); JJJ(bbb, ccc, ddd, eee, aaa, X[ 3], 12); JJJ(aaa, bbb, ccc, ddd, eee, X[12], 6); /* parallel round 2 */ III(eee, aaa, bbb, ccc, ddd, X[ 6], 9); III(ddd, eee, aaa, bbb, ccc, X[11], 13); III(ccc, ddd, eee, aaa, bbb, X[ 3], 15); III(bbb, ccc, ddd, eee, aaa, X[ 7], 7); III(aaa, bbb, ccc, ddd, eee, X[ 0], 12); III(eee, aaa, bbb, ccc, ddd, X[13], 8); III(ddd, eee, aaa, bbb, ccc, X[ 5], 9); III(ccc, ddd, eee, aaa, bbb, X[10], 11); III(bbb, ccc, ddd, eee, aaa, X[14], 7); III(aaa, bbb, ccc, ddd, eee, X[15], 7); III(eee, aaa, bbb, ccc, ddd, X[ 8], 12); III(ddd, eee, aaa, bbb, ccc, X[12], 7); III(ccc, ddd, eee, aaa, bbb, X[ 4], 6); III(bbb, ccc, ddd, eee, aaa, X[ 9], 15); III(aaa, bbb, ccc, ddd, eee, X[ 1], 13); III(eee, aaa, bbb, ccc, ddd, X[ 2], 11); /* parallel round 3 */ HHH(ddd, eee, aaa, bbb, ccc, X[15], 9); HHH(ccc, ddd, eee, aaa, bbb, X[ 5], 7); HHH(bbb, ccc, ddd, eee, aaa, X[ 1], 15); HHH(aaa, bbb, ccc, ddd, eee, X[ 3], 11); HHH(eee, aaa, bbb, ccc, ddd, X[ 7], 8); HHH(ddd, eee, aaa, bbb, ccc, X[14], 6); HHH(ccc, ddd, eee, aaa, bbb, X[ 6], 6); HHH(bbb, ccc, ddd, eee, aaa, X[ 9], 14); HHH(aaa, bbb, ccc, ddd, eee, X[11], 12); HHH(eee, aaa, bbb, ccc, ddd, X[ 8], 13); HHH(ddd, eee, aaa, bbb, ccc, X[12], 5); HHH(ccc, ddd, eee, aaa, bbb, X[ 2], 14); HHH(bbb, ccc, ddd, eee, aaa, X[10], 13); HHH(aaa, bbb, ccc, ddd, eee, X[ 0], 13); HHH(eee, aaa, bbb, ccc, ddd, X[ 4], 7); HHH(ddd, eee, aaa, bbb, ccc, X[13], 5); /* parallel round 4 */ GGG(ccc, ddd, eee, aaa, bbb, X[ 8], 15); GGG(bbb, ccc, ddd, eee, aaa, X[ 6], 5); GGG(aaa, bbb, ccc, ddd, eee, X[ 4], 8); GGG(eee, aaa, bbb, ccc, ddd, X[ 1], 11); GGG(ddd, eee, aaa, bbb, ccc, X[ 3], 14); GGG(ccc, ddd, eee, aaa, bbb, X[11], 14); GGG(bbb, ccc, ddd, eee, aaa, X[15], 6); GGG(aaa, bbb, ccc, ddd, eee, X[ 0], 14); GGG(eee, aaa, bbb, ccc, ddd, X[ 5], 6); GGG(ddd, eee, aaa, bbb, ccc, X[12], 9); GGG(ccc, ddd, eee, aaa, bbb, X[ 2], 12); GGG(bbb, ccc, ddd, eee, aaa, X[13], 9); GGG(aaa, bbb, ccc, ddd, eee, X[ 9], 12); GGG(eee, aaa, bbb, ccc, ddd, X[ 7], 5); GGG(ddd, eee, aaa, bbb, ccc, X[10], 15); GGG(ccc, ddd, eee, aaa, bbb, X[14], 8); /* parallel round 5 */ FFF(bbb, ccc, ddd, eee, aaa, X[12] , 8); FFF(aaa, bbb, ccc, ddd, eee, X[15] , 5); FFF(eee, aaa, bbb, ccc, ddd, X[10] , 12); FFF(ddd, eee, aaa, bbb, ccc, X[ 4] , 9); FFF(ccc, ddd, eee, aaa, bbb, X[ 1] , 12); FFF(bbb, ccc, ddd, eee, aaa, X[ 5] , 5); FFF(aaa, bbb, ccc, ddd, eee, X[ 8] , 14); FFF(eee, aaa, bbb, ccc, ddd, X[ 7] , 6); FFF(ddd, eee, aaa, bbb, ccc, X[ 6] , 8); FFF(ccc, ddd, eee, aaa, bbb, X[ 2] , 13); FFF(bbb, ccc, ddd, eee, aaa, X[13] , 6); FFF(aaa, bbb, ccc, ddd, eee, X[14] , 5); FFF(eee, aaa, bbb, ccc, ddd, X[ 0] , 15); FFF(ddd, eee, aaa, bbb, ccc, X[ 3] , 13); FFF(ccc, ddd, eee, aaa, bbb, X[ 9] , 11); FFF(bbb, ccc, ddd, eee, aaa, X[11] , 11); /* combine results */ ddd += cc + MDbuf[1]; /* final result for MDbuf[0] */ MDbuf[1] = MDbuf[2] + dd + eee; MDbuf[2] = MDbuf[3] + ee + aaa; MDbuf[3] = MDbuf[4] + aa + bbb; MDbuf[4] = MDbuf[0] + bb + ccc; MDbuf[0] = ddd; return; } /********************************************************************/ void MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen) { unsigned int i; /* counter */ dword X[16]; /* message words */ memset(X, 0, 16*sizeof(dword)); /* put bytes from strptr into X */ for (i=0; i<(lswlen&63); i++) { /* byte i goes into word X[i div 4] at pos. 8*(i mod 4) */ X[i>>2] ^= (dword) *strptr++ << (8 * (i&3)); } /* append the bit m_n == 1 */ X[(lswlen>>2)&15] ^= (dword)1 << (8*(lswlen&3) + 7); if ((lswlen & 63) > 55) { /* length goes to next block */ compress(MDbuf, X); memset(X, 0, 16*sizeof(dword)); } /* append length in bits*/ X[14] = lswlen << 3; X[15] = (lswlen >> 29) | (mswlen << 3); compress(MDbuf, X); return; } byte *RMD(byte *message , int msglen) /* * returns RMD(message) * message should be a string terminated by '\0' */ { dword MDbuf[RMDsize/32]; /* contains (A, B, C, D(, E)) */ static byte hashcode[RMDsize/8]; /* for final hash-value */ dword X[16]; /* current 16-word chunk */ unsigned int i; /* counter */ dword length; /* length in bytes of message */ dword nbytes; /* # of bytes not yet processed */ /* initialize */ MDinit(MDbuf); length = msglen; //(dword)strlen((char *)message); //printf("len = %d\n",length); /* process message in 16-word chunks */ for (nbytes=length; nbytes > 63; nbytes-=64) { for (i=0; i<16; i++) { X[i] = BYTES_TO_DWORD(message); message += 4; } compress(MDbuf, X); } /* length mod 64 bytes left */ /* finish: */ MDfinish(MDbuf, message, length, 0); for (i=0; i>2]; /* implicit cast to byte */ hashcode[i+1] = (MDbuf[i>>2] >> 8); /* extracts the 8 least */ hashcode[i+2] = (MDbuf[i>>2] >> 16); /* significant bits. */ hashcode[i+3] = (MDbuf[i>>2] >> 24); } return (byte *)hashcode; } /************************ end of file rmd160.c **********************/