From 040dfc21aefb7e14228de9ba223c380661a4786a Mon Sep 17 00:00:00 2001 From: Alexey Shchepin Date: Fri, 10 Jan 2003 20:38:32 +0000 Subject: [PATCH] *** empty log message *** SVN Revision: 36 --- COPYING | 340 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ sha_erl.c | 271 ------------------------------------------- 2 files changed, 340 insertions(+), 271 deletions(-) create mode 100644 COPYING delete mode 100644 sha_erl.c diff --git a/COPYING b/COPYING new file mode 100644 index 000000000..d60c31a97 --- /dev/null +++ b/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/sha_erl.c b/sha_erl.c deleted file mode 100644 index bce02b762..000000000 --- a/sha_erl.c +++ /dev/null @@ -1,271 +0,0 @@ -/* - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is SHA 180-1 Reference Implementation (Compact version) - * - * The Initial Developer of the Original Code is Paul Kocher of - * Cryptography Research. Portions created by Paul Kocher are - * Copyright (C) 1995-9 by Cryptography Research, Inc. All - * Rights Reserved. - * - * Contributor(s): - * - */ - -#include -#include -#include - -typedef struct { - ErlDrvPort port; -} sha_data; - -typedef struct { - unsigned long H[5]; - unsigned long W[80]; - int lenW; - unsigned long sizeHi,sizeLo; -} j_SHA_CTX; - -static void shaHashBlock(j_SHA_CTX *ctx); - -void shaInit(j_SHA_CTX *ctx) { - int i; - - ctx->lenW = 0; - ctx->sizeHi = ctx->sizeLo = 0; - - /* Initialize H with the magic constants (see FIPS180 for constants) - */ - ctx->H[0] = 0x67452301L; - ctx->H[1] = 0xefcdab89L; - ctx->H[2] = 0x98badcfeL; - ctx->H[3] = 0x10325476L; - ctx->H[4] = 0xc3d2e1f0L; - - for (i = 0; i < 80; i++) - ctx->W[i] = 0; -} - - -void shaUpdate(j_SHA_CTX *ctx, unsigned char *dataIn, int len) { - int i; - - /* Read the data into W and process blocks as they get full - */ - for (i = 0; i < len; i++) { - ctx->W[ctx->lenW / 4] <<= 8; - ctx->W[ctx->lenW / 4] |= (unsigned long)dataIn[i]; - if ((++ctx->lenW) % 64 == 0) { - shaHashBlock(ctx); - ctx->lenW = 0; - } - ctx->sizeLo += 8; - ctx->sizeHi += (ctx->sizeLo < 8); - } -} - - -void shaFinal(j_SHA_CTX *ctx, unsigned char hashout[20]) { - unsigned char pad0x80 = 0x80; - unsigned char pad0x00 = 0x00; - unsigned char padlen[8]; - int i; - - /* Pad with a binary 1 (e.g. 0x80), then zeroes, then length - */ - padlen[0] = (unsigned char)((ctx->sizeHi >> 24) & 255); - padlen[1] = (unsigned char)((ctx->sizeHi >> 16) & 255); - padlen[2] = (unsigned char)((ctx->sizeHi >> 8) & 255); - padlen[3] = (unsigned char)((ctx->sizeHi >> 0) & 255); - padlen[4] = (unsigned char)((ctx->sizeLo >> 24) & 255); - padlen[5] = (unsigned char)((ctx->sizeLo >> 16) & 255); - padlen[6] = (unsigned char)((ctx->sizeLo >> 8) & 255); - padlen[7] = (unsigned char)((ctx->sizeLo >> 0) & 255); - shaUpdate(ctx, &pad0x80, 1); - while (ctx->lenW != 56) - shaUpdate(ctx, &pad0x00, 1); - shaUpdate(ctx, padlen, 8); - - /* Output hash - */ - for (i = 0; i < 20; i++) { - hashout[i] = (unsigned char)(ctx->H[i / 4] >> 24); - ctx->H[i / 4] <<= 8; - } - - /* - * Re-initialize the context (also zeroizes contents) - */ - shaInit(ctx); -} - - -void shaBlock(unsigned char *dataIn, int len, unsigned char hashout[20]) { - j_SHA_CTX ctx; - - shaInit(&ctx); - shaUpdate(&ctx, dataIn, len); - shaFinal(&ctx, hashout); -} - - -#define SHA_ROTL(X,n) ((((X) << (n)) | ((X) >> (32-(n)))) & 0xffffffffL) - -static void shaHashBlock(j_SHA_CTX *ctx) { - int t; - unsigned long A,B,C,D,E,TEMP; - - for (t = 16; t <= 79; t++) - ctx->W[t] = - SHA_ROTL(ctx->W[t-3] ^ ctx->W[t-8] ^ ctx->W[t-14] ^ ctx->W[t-16], 1); - - A = ctx->H[0]; - B = ctx->H[1]; - C = ctx->H[2]; - D = ctx->H[3]; - E = ctx->H[4]; - - for (t = 0; t <= 19; t++) { - TEMP = (SHA_ROTL(A,5) + (((C^D)&B)^D) + E + ctx->W[t] + 0x5a827999L) & 0xffffffffL; - E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP; - } - for (t = 20; t <= 39; t++) { - TEMP = (SHA_ROTL(A,5) + (B^C^D) + E + ctx->W[t] + 0x6ed9eba1L) & 0xffffffffL; - E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP; - } - for (t = 40; t <= 59; t++) { - TEMP = (SHA_ROTL(A,5) + ((B&C)|(D&(B|C))) + E + ctx->W[t] + 0x8f1bbcdcL) & 0xffffffffL; - E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP; - } - for (t = 60; t <= 79; t++) { - TEMP = (SHA_ROTL(A,5) + (B^C^D) + E + ctx->W[t] + 0xca62c1d6L) & 0xffffffffL; - E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP; - } - - ctx->H[0] += A; - ctx->H[1] += B; - ctx->H[2] += C; - ctx->H[3] += D; - ctx->H[4] += E; -} - -/*---------------------------------------------------------------------------- - * - * This code added by Thomas "temas" Muldowney for Jabber compatability - * - *---------------------------------------------------------------------------*/ -char *shahash(char *str) -{ - static char final[41]; - char *pos; - unsigned char hashval[20]; - int x; - - if(!str || strlen(str) == 0) - return NULL; - - shaBlock((unsigned char *)str, strlen(str), hashval); - - pos = final; - for(x=0;x<20;x++) - { - snprintf(pos, 3, "%02x", hashval[x]); - pos += 2; - } - return (char *)final; -} - -void shahash_r(const char* str, char hashbuf[41]) -{ - int x; - char *pos; - unsigned char hashval[20]; - - if(!str || strlen(str) == 0) - return; - - shaBlock((unsigned char *)str, strlen(str), hashval); - - pos = hashbuf; - for(x=0;x<20;x++) - { - snprintf(pos, 3, "%02x", hashval[x]); - pos += 2; - } - - return; -} - -static ErlDrvData sha_erl_start(ErlDrvPort port, char *buff) -{ - sha_data* d = (sha_data*)driver_alloc(sizeof(sha_data)); - d->port = port; - - return (ErlDrvData)d; -} - -static void sha_erl_stop(ErlDrvData handle) -{ - driver_free((char*)handle); -} - -static void sha_erl_output(ErlDrvData handle, char *buff, int bufflen) -{ - sha_data* d = (sha_data*)handle; - ei_x_buff buf; - - static char final[41]; - char *pos; - unsigned char hashval[20]; - int x; - - if(bufflen == 0) - final[0] = '\000'; - else - { - shaBlock(buff, bufflen, hashval); - - pos = final; - for(x=0;x<20;x++) - { - snprintf(pos, 3, "%02x", hashval[x]); - pos += 2; - } - } - - ei_x_new_with_version(&buf); - ei_x_encode_string(&buf, final); - - driver_output(d->port, buf.buff, buf.index); - ei_x_free(&buf); -} - - -ErlDrvEntry sha_driver_entry = { - NULL, /* F_PTR init, N/A */ - sha_erl_start, /* L_PTR start, called when port is opened */ - sha_erl_stop, /* F_PTR stop, called when port is closed */ - sha_erl_output, /* F_PTR output, called when erlang has sent */ - NULL, /* F_PTR ready_input, called when input descriptor ready */ - NULL, /* F_PTR ready_output, called when output descriptor ready */ - "sha_erl", /* char *driver_name, the argument to open_port */ - NULL, /* F_PTR finish, called when unloaded */ - NULL, /* F_PTR control, port_command callback */ - NULL, /* F_PTR timeout, reserved */ - NULL /* F_PTR outputv, reserved */ -}; - -DRIVER_INIT(sha_erl) /* must match name in driver_entry */ -{ - return &sha_driver_entry; -} -