/* * 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 <string.h> #include <openssl/blowfish.h> #include "bf_locl.h" #include "bf_pi.h" void BF_set_key(BF_KEY *key, int len, const unsigned char *data) { int i; BF_LONG *p, ri, in[2]; const unsigned char *d, *end; memcpy(key, &bf_init, sizeof(BF_KEY)); p = key->P; if (len > ((BF_ROUNDS + 2) * 4)) len = (BF_ROUNDS + 2) * 4; d = data; end = &(data[len]); for (i = 0; i < (BF_ROUNDS + 2); i++) { ri = *(d++); if (d >= end) d = data; ri <<= 8; ri |= *(d++); if (d >= end) d = data; ri <<= 8; ri |= *(d++); if (d >= end) d = data; ri <<= 8; ri |= *(d++); if (d >= end) d = data; p[i] ^= ri; } in[0] = 0L; in[1] = 0L; for (i = 0; i < (BF_ROUNDS + 2); i += 2) { BF_encrypt(in, key); p[i] = in[0]; p[i + 1] = in[1]; } p = key->S; for (i = 0; i < 4 * 256; i += 2) { BF_encrypt(in, key); p[i] = in[0]; p[i + 1] = in[1]; } } |