diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/des/cfb64ede.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/des/cfb64ede.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/Cryptlib/OpenSSL/crypto/des/cfb64ede.c b/Cryptlib/OpenSSL/crypto/des/cfb64ede.c deleted file mode 100644 index 5edb979e..00000000 --- a/Cryptlib/OpenSSL/crypto/des/cfb64ede.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * 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 "des_locl.h" -#include "e_os.h" - -/* - * The input and output encrypted as though 64bit cfb mode is being used. - * The extra state information to record how much of the 64bit block we have - * used is contained in *num; - */ - -void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, - long length, DES_key_schedule *ks1, - DES_key_schedule *ks2, DES_key_schedule *ks3, - DES_cblock *ivec, int *num, int enc) -{ - register DES_LONG v0, v1; - register long l = length; - register int n = *num; - DES_LONG ti[2]; - unsigned char *iv, c, cc; - - iv = &(*ivec)[0]; - if (enc) { - while (l--) { - if (n == 0) { - c2l(iv, v0); - c2l(iv, v1); - - ti[0] = v0; - ti[1] = v1; - DES_encrypt3(ti, ks1, ks2, ks3); - v0 = ti[0]; - v1 = ti[1]; - - iv = &(*ivec)[0]; - l2c(v0, iv); - l2c(v1, iv); - iv = &(*ivec)[0]; - } - c = *(in++) ^ iv[n]; - *(out++) = c; - iv[n] = c; - n = (n + 1) & 0x07; - } - } else { - while (l--) { - if (n == 0) { - c2l(iv, v0); - c2l(iv, v1); - - ti[0] = v0; - ti[1] = v1; - DES_encrypt3(ti, ks1, ks2, ks3); - v0 = ti[0]; - v1 = ti[1]; - - iv = &(*ivec)[0]; - l2c(v0, iv); - l2c(v1, iv); - iv = &(*ivec)[0]; - } - cc = *(in++); - c = iv[n]; - iv[n] = cc; - *(out++) = c ^ cc; - n = (n + 1) & 0x07; - } - } - v0 = v1 = ti[0] = ti[1] = c = cc = 0; - *num = n; -} - -/* - * This is compatible with the single key CFB-r for DES, even thought that's - * not what EVP needs. - */ - -void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, - int numbits, long length, DES_key_schedule *ks1, - DES_key_schedule *ks2, DES_key_schedule *ks3, - DES_cblock *ivec, int enc) -{ - register DES_LONG d0, d1, v0, v1; - register unsigned long l = length, n = ((unsigned int)numbits + 7) / 8; - register int num = numbits, i; - DES_LONG ti[2]; - unsigned char *iv; - unsigned char ovec[16]; - - if (num > 64) - return; - iv = &(*ivec)[0]; - c2l(iv, v0); - c2l(iv, v1); - if (enc) { - while (l >= n) { - l -= n; - ti[0] = v0; - ti[1] = v1; - DES_encrypt3(ti, ks1, ks2, ks3); - c2ln(in, d0, d1, n); - in += n; - d0 ^= ti[0]; - d1 ^= ti[1]; - l2cn(d0, d1, out, n); - out += n; - /* - * 30-08-94 - eay - changed because l>>32 and l<<32 are bad under - * gcc :-( - */ - if (num == 32) { - v0 = v1; - v1 = d0; - } else if (num == 64) { - v0 = d0; - v1 = d1; - } else { - iv = &ovec[0]; - l2c(v0, iv); - l2c(v1, iv); - l2c(d0, iv); - l2c(d1, iv); - /* shift ovec left most of the bits... */ - memmove(ovec, ovec + num / 8, 8 + (num % 8 ? 1 : 0)); - /* now the remaining bits */ - if (num % 8 != 0) - for (i = 0; i < 8; ++i) { - ovec[i] <<= num % 8; - ovec[i] |= ovec[i + 1] >> (8 - num % 8); - } - iv = &ovec[0]; - c2l(iv, v0); - c2l(iv, v1); - } - } - } else { - while (l >= n) { - l -= n; - ti[0] = v0; - ti[1] = v1; - DES_encrypt3(ti, ks1, ks2, ks3); - c2ln(in, d0, d1, n); - in += n; - /* - * 30-08-94 - eay - changed because l>>32 and l<<32 are bad under - * gcc :-( - */ - if (num == 32) { - v0 = v1; - v1 = d0; - } else if (num == 64) { - v0 = d0; - v1 = d1; - } else { - iv = &ovec[0]; - l2c(v0, iv); - l2c(v1, iv); - l2c(d0, iv); - l2c(d1, iv); - /* shift ovec left most of the bits... */ - memmove(ovec, ovec + num / 8, 8 + (num % 8 ? 1 : 0)); - /* now the remaining bits */ - if (num % 8 != 0) - for (i = 0; i < 8; ++i) { - ovec[i] <<= num % 8; - ovec[i] |= ovec[i + 1] >> (8 - num % 8); - } - iv = &ovec[0]; - c2l(iv, v0); - c2l(iv, v1); - } - d0 ^= ti[0]; - d1 ^= ti[1]; - l2cn(d0, d1, out, n); - out += n; - } - } - iv = &(*ivec)[0]; - l2c(v0, iv); - l2c(v1, iv); - v0 = v1 = d0 = d1 = ti[0] = ti[1] = 0; -} |