URL
https://opencores.org/ocsvn/sc2v/sc2v/trunk
Subversion Repositories sc2v
[/] [sc2v/] [trunk/] [examples/] [md5.cpp] - Rev 36
Compare with Previous | Blame | View Log
////////////////////////////////////////////////////////////////////// //// //// //// MD5 main implementation file //// //// //// //// This file is part of the SystemC MD5 //// //// //// //// Description: //// //// MD5 main implementation file //// //// //// //// To Do: //// //// - done //// //// //// //// Author(s): //// //// - Javier Castillo, jcastillo@opencores.org //// //// //// ////////////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2000 Authors and OPENCORES.ORG //// //// //// //// This source file may be used and distributed without //// //// restriction provided that this copyright statement is not //// //// removed from the file and that any derivative work contains //// //// the original copyright notice and the associated disclaimer. //// //// //// //// This source file is free software; you can redistribute it //// //// and/or modify it under the terms of the GNU Lesser General //// //// Public License as published by the Free Software Foundation; //// //// either version 2.1 of the License, or (at your option) any //// //// later version. //// //// //// //// This source is distributed in the hope that it will be //// //// useful, but WITHOUT ANY WARRANTY; without even the implied //// //// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// //// PURPOSE. See the GNU Lesser General Public License for more //// //// details. //// //// //// //// You should have received a copy of the GNU Lesser General //// //// Public License along with this source; if not, download it //// //// from http://www.opencores.org/lgpl.shtml //// //// //// ////////////////////////////////////////////////////////////////////// // // CVS Revision History // // $Log: not supported by cvs2svn $ // Revision 1.1.1.1 2004/10/08 14:04:10 jcastillo // First import // // Revision 1.1.1.1 2004/09/08 16:24:49 jcastillo // Initial release // #include "md5.h" void md5::md5_rom () { switch (round64.read ()) { case 0: t.write (0xD76AA478070); break; case 1: t.write (0xE8C7B7560C1); break; case 2: t.write (0x242070DB112); break; case 3: t.write (0xC1BDCEEE163); break; case 4: t.write (0xF57C0FAF074); break; case 5: t.write (0x4787C62A0C5); break; case 6: t.write (0xA8304613116); break; case 7: t.write (0xFD469501167); break; case 8: t.write (0x698098D8078); break; case 9: t.write (0x8B44F7AF0C9); break; case 10: t.write (0xFFFF5BB111A); break; case 11: t.write (0x895CD7BE16B); break; case 12: t.write (0x6B90112207C); break; case 13: t.write (0xFD9871930CD); break; case 14: t.write (0xA679438E11E); break; case 15: t.write (0x49B4082116F); break; case 16: t.write (0xf61e2562051); break; case 17: t.write (0xc040b340096); break; case 18: t.write (0x265e5a510EB); break; case 19: t.write (0xe9b6c7aa140); break; case 20: t.write (0xd62f105d055); break; case 21: t.write (0x0244145309A); break; case 22: t.write (0xd8a1e6810EF); break; case 23: t.write (0xe7d3fbc8144); break; case 24: t.write (0x21e1cde6059); break; case 25: t.write (0xc33707d609E); break; case 26: t.write (0xf4d50d870E3); break; case 27: t.write (0x455a14ed148); break; case 28: t.write (0xa9e3e90505D); break; case 29: t.write (0xfcefa3f8092); break; case 30: t.write (0x676f02d90E7); break; case 31: t.write (0x8d2a4c8a14C); break; case 32: t.write (0xfffa3942045); break; case 33: t.write (0x8771f6810B8); break; case 34: t.write (0x6d9d612210B); break; case 35: t.write (0xfde5380c17E); break; case 36: t.write (0xa4beea44041); break; case 37: t.write (0x4bdecfa90B4); break; case 38: t.write (0xf6bb4b60107); break; case 39: t.write (0xbebfbc7017A); break; case 40: t.write (0x289b7ec604D); break; case 41: t.write (0xeaa127fa0B0); break; case 42: t.write (0xd4ef3085103); break; case 43: t.write (0x04881d05176); break; case 44: t.write (0xd9d4d039049); break; case 45: t.write (0xe6db99e50BC); break; case 46: t.write (0x1fa27cf810F); break; case 47: t.write (0xc4ac5665172); break; case 48: t.write (0xf4292244060); break; case 49: t.write (0x432aff970A7); break; case 50: t.write (0xab9423a70FE); break; case 51: t.write (0xfc93a039155); break; case 52: t.write (0x655b59c306C); break; case 53: t.write (0x8f0ccc920A3); break; case 54: t.write (0xffeff47d0FA); break; case 55: t.write (0x85845dd1151); break; case 56: t.write (0x6fa87e4f068); break; case 57: t.write (0xfe2ce6e00AF); break; case 58: t.write (0xa30143140F6); break; case 59: t.write (0x4e0811a115D); break; case 60: t.write (0xf7537e82064); break; case 61: t.write (0xbd3af2350AB); break; case 62: t.write (0x2ad7d2bb0F2); break; case 63: t.write (0xeb86d391159); break; } } void md5::funcs () { sc_uint < 32 > aux, fr_var, tr_var, rotate1, rotate2; sc_uint < 8 > s_var; sc_uint < 4 > nblock; sc_uint < 32 > message_var[16]; message_var[0]=message.read().range(511,480); message_var[1]=message.read().range(479,448); message_var[2]=message.read().range(447,416); message_var[3]=message.read().range(415,384); message_var[4]=message.read().range(383,352); message_var[5]=message.read().range(351,320); message_var[6]=message.read().range(319,288); message_var[7]=message.read().range(287,256); message_var[8]=message.read().range(255,224); message_var[9]=message.read().range(223,192); message_var[10]=message.read().range(191,160); message_var[11]=message.read().range(159,128); message_var[12]=message.read().range(127,96); message_var[13]=message.read().range(95,64); message_var[14]=message.read().range(63,32); message_var[15]=message.read().range(31,0); fr_var = 0; switch (round.read ()) { case 0: fr_var = ((br.read () & cr.read ()) | (~br.read () & dr.read ())); break; case 1: fr_var = ((br.read () & dr.read ()) | (cr.read () & (~dr.read ()))); break; case 2: fr_var = (br.read () ^ cr.read () ^ dr.read ()); break; case 3: fr_var = (cr.read () ^ (br.read () | ~dr.read ())); break; default: break; } tr_var = t.read ().range (43, 12); s_var = t.read ().range (11, 4); nblock = t.read ().range (3, 0); aux = (ar.read () + fr_var + message_var[(int) nblock] + tr_var); //cout << (int)round64.read() << " " << (int)fr_var << " " << (int)aux << " " << (int)nblock << " " << (int)message_var[(int)nblock] << endl; rotate1 = aux << (int) s_var; rotate2 = aux >> (int) (32 - s_var); func_out.write (br.read () + (rotate1 | rotate2)); } void md5::round64FSM () { next_ar.write (ar.read ()); next_br.write (br.read ()); next_cr.write (cr.read ()); next_dr.write (dr.read ()); next_round64.write (round64.read ()); next_round.write (round.read ()); hash_generated.write (0); if (generate_hash.read () != 0) { next_ar.write (dr.read ()); next_br.write (func_out.read ()); next_cr.write (br.read ()); next_dr.write (cr.read ()); } switch (round64.read ()) { case 0: next_round.write (0); if (generate_hash.read ()) { next_round64.write (1); } break; case 15: case 31: case 47: next_round.write (round.read () + 1); next_round64.write (round64.read () + 1); break; case 63: next_round.write (0); next_round64.write (0); hash_generated.write (1); break; default: next_round64.write (round64.read () + 1); break; } if (newtext_i.read ()) { next_ar.write (0x67452301); next_br.write (0xEFCDAB89); next_cr.write (0x98BADCFE); next_dr.write (0x10325476); next_round.write (0); next_round64.write (0); } if (getdata_state.read () == 0) { next_ar.write (A.read ()); next_br.write (B.read ()); next_cr.write (C.read ()); next_dr.write (D.read ()); } } void md5::reg_signal () { if (!reset) { ready_o.write (0); data_o.write (0); message.write (0); ar.write (0x67452301); br.write (0xEFCDAB89); cr.write (0x98BADCFE); dr.write (0x10325476); getdata_state.write (0); generate_hash.write (0); round.write (0); round64.write (0); A.write (0x67452301); B.write (0xEFCDAB89); C.write (0x98BADCFE); D.write (0x10325476); } else { ready_o.write (next_ready_o.read ()); data_o.write (next_data_o.read ()); message.write (next_message.read ()); ar.write (next_ar.read ()); br.write (next_br.read ()); cr.write (next_cr.read ()); dr.write (next_dr.read ()); A.write (next_A.read ()); B.write (next_B.read ()); C.write (next_C.read ()); D.write (next_D.read ()); generate_hash.write (next_generate_hash.read ()); getdata_state.write (next_getdata_state.read ()); round.write (next_round.read ()); round64.write (next_round64.read ()); } } void md5::md5_getdata () { sc_biguint < 128 > data_o_var; sc_biguint < 512 > aux; sc_uint < 32 > A_t, B_t, C_t, D_t; next_A.write (A.read ()); next_B.write (B.read ()); next_C.write (C.read ()); next_D.write (D.read ()); next_generate_hash.write (0); next_ready_o.write (0); next_data_o.write (0); aux = message.read (); next_message.write (message.read ()); next_getdata_state.write (getdata_state.read ()); if (newtext_i.read ()) { next_A.write (0x67452301); next_B.write (0xEFCDAB89); next_C.write (0x98BADCFE); next_D.write (0x10325476); next_getdata_state.write (0); } switch (getdata_state.read ()) { case 0: if (load_i.read ()) { aux.range (511, 384) = data_i.read (); next_message.write (aux); next_getdata_state.write (1); } break; case 1: if (load_i.read ()) { aux.range (383, 256) = data_i.read (); next_message.write (aux); next_getdata_state.write (2); } break; case 2: if (load_i.read ()) { aux.range (255, 128) = data_i.read (); next_message.write (aux); next_getdata_state.write (3); } break; case 3: if (load_i.read ()) { aux.range (127, 0) = data_i.read (); next_message.write (aux); next_getdata_state.write (4); next_generate_hash.write (1); } break; case 4: next_generate_hash.write (1); A_t = dr.read () + A.read (); B_t = func_out.read () + B.read (); C_t = br.read () + C.read (); D_t = cr.read () + D.read (); data_o_var.range (127, 96) = A_t; data_o_var.range (95, 64) = B_t; data_o_var.range (63, 32) = C_t; data_o_var.range (31, 0) = D_t; next_data_o.write (data_o_var); if (hash_generated.read ()) { next_A.write (A_t); next_B.write (B_t); next_C.write (C_t); next_D.write (D_t); next_getdata_state.write (0); next_ready_o.write (1); next_generate_hash.write (0); } break; } }