diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/md2/md2_dgst.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/md2/md2_dgst.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/md2/md2_dgst.c b/openssl-1.1.0h/crypto/md2/md2_dgst.c new file mode 100644 index 0000000..ff062fd --- /dev/null +++ b/openssl-1.1.0h/crypto/md2/md2_dgst.c @@ -0,0 +1,173 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <openssl/md2.h> +#include <openssl/opensslv.h> +#include <openssl/crypto.h> + +/* + * Implemented from RFC1319 The MD2 Message-Digest Algorithm + */ + +#define UCHAR unsigned char + +static void md2_block(MD2_CTX *c, const unsigned char *d); +/* + * The magic S table - I have converted it to hex since it is basically just + * a random byte string. + */ +static const MD2_INT S[256] = { + 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, + 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, + 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, + 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, + 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, + 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, + 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, + 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, + 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, + 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, + 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, + 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, + 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, + 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, + 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, + 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, + 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, + 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, + 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, + 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, + 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, + 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, + 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, + 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, + 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, + 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, + 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, + 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, + 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, + 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, + 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, + 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14, +}; + +const char *MD2_options(void) +{ + if (sizeof(MD2_INT) == 1) + return ("md2(char)"); + else + return ("md2(int)"); +} + +int MD2_Init(MD2_CTX *c) +{ + c->num = 0; + memset(c->state, 0, sizeof(c->state)); + memset(c->cksm, 0, sizeof(c->cksm)); + memset(c->data, 0, sizeof(c->data)); + return 1; +} + +int MD2_Update(MD2_CTX *c, const unsigned char *data, size_t len) +{ + register UCHAR *p; + + if (len == 0) + return 1; + + p = c->data; + if (c->num != 0) { + if ((c->num + len) >= MD2_BLOCK) { + memcpy(&(p[c->num]), data, MD2_BLOCK - c->num); + md2_block(c, c->data); + data += (MD2_BLOCK - c->num); + len -= (MD2_BLOCK - c->num); + c->num = 0; + /* drop through and do the rest */ + } else { + memcpy(&(p[c->num]), data, len); + /* data+=len; */ + c->num += (int)len; + return 1; + } + } + /* + * we now can process the input data in blocks of MD2_BLOCK chars and + * save the leftovers to c->data. + */ + while (len >= MD2_BLOCK) { + md2_block(c, data); + data += MD2_BLOCK; + len -= MD2_BLOCK; + } + memcpy(p, data, len); + c->num = (int)len; + return 1; +} + +static void md2_block(MD2_CTX *c, const unsigned char *d) +{ + register MD2_INT t, *sp1, *sp2; + register int i, j; + MD2_INT state[48]; + + sp1 = c->state; + sp2 = c->cksm; + j = sp2[MD2_BLOCK - 1]; + for (i = 0; i < 16; i++) { + state[i] = sp1[i]; + state[i + 16] = t = d[i]; + state[i + 32] = (t ^ sp1[i]); + j = sp2[i] ^= S[t ^ j]; + } + t = 0; + for (i = 0; i < 18; i++) { + for (j = 0; j < 48; j += 8) { + t = state[j + 0] ^= S[t]; + t = state[j + 1] ^= S[t]; + t = state[j + 2] ^= S[t]; + t = state[j + 3] ^= S[t]; + t = state[j + 4] ^= S[t]; + t = state[j + 5] ^= S[t]; + t = state[j + 6] ^= S[t]; + t = state[j + 7] ^= S[t]; + } + t = (t + i) & 0xff; + } + memcpy(sp1, state, 16 * sizeof(MD2_INT)); + OPENSSL_cleanse(state, 48 * sizeof(MD2_INT)); +} + +int MD2_Final(unsigned char *md, MD2_CTX *c) +{ + int i, v; + register UCHAR *cp; + register MD2_INT *p1, *p2; + + cp = c->data; + p1 = c->state; + p2 = c->cksm; + v = MD2_BLOCK - c->num; + for (i = c->num; i < MD2_BLOCK; i++) + cp[i] = (UCHAR) v; + + md2_block(c, cp); + + for (i = 0; i < MD2_BLOCK; i++) + cp[i] = (UCHAR) p2[i]; + md2_block(c, cp); + + for (i = 0; i < 16; i++) + md[i] = (UCHAR) (p1[i] & 0xff); + OPENSSL_cleanse(c, sizeof(*c)); + return 1; +} |