X-Git-Url: http://ftp.carnet.hr/pub/carnet-debian/scm?a=blobdiff_plain;f=src%2Fos_crypto%2Fblowfish%2Fbf_enc.c;h=ed24722674103453e0d562b51d35255717b913f2;hb=946517cefb8751a43a89bda4220221f065f4e5d1;hp=bbe5b0506a3ebeca7f73877797bdb7140a0f1455;hpb=914feba5d54f979cd5d7e69c349c3d01f630042a;p=ossec-hids.git diff --git a/src/os_crypto/blowfish/bf_enc.c b/src/os_crypto/blowfish/bf_enc.c old mode 100755 new mode 100644 index bbe5b05..ed24722 --- a/src/os_crypto/blowfish/bf_enc.c +++ b/src/os_crypto/blowfish/bf_enc.c @@ -1,25 +1,24 @@ -/* crypto/bf/bf_enc.c */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +33,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +48,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -69,238 +68,233 @@ to modify the code. #endif + void BF_encrypt(BF_LONG *data, const BF_KEY *key) - { +{ #ifndef BF_PTR2 - register BF_LONG l,r; - register const BF_LONG *p,*s; + register BF_LONG l, r; + register const BF_LONG *p, *s; - p=key->P; - s= &(key->S[0]); - l=data[0]; - r=data[1]; + p = key->P; + s = &(key->S[0]); + l = data[0]; + r = data[1]; - l^=p[0]; - BF_ENC(r,l,s,p[ 1]); - BF_ENC(l,r,s,p[ 2]); - BF_ENC(r,l,s,p[ 3]); - BF_ENC(l,r,s,p[ 4]); - BF_ENC(r,l,s,p[ 5]); - BF_ENC(l,r,s,p[ 6]); - BF_ENC(r,l,s,p[ 7]); - BF_ENC(l,r,s,p[ 8]); - BF_ENC(r,l,s,p[ 9]); - BF_ENC(l,r,s,p[10]); - BF_ENC(r,l,s,p[11]); - BF_ENC(l,r,s,p[12]); - BF_ENC(r,l,s,p[13]); - BF_ENC(l,r,s,p[14]); - BF_ENC(r,l,s,p[15]); - BF_ENC(l,r,s,p[16]); + l ^= p[0]; + BF_ENC(r, l, s, p[ 1]); + BF_ENC(l, r, s, p[ 2]); + BF_ENC(r, l, s, p[ 3]); + BF_ENC(l, r, s, p[ 4]); + BF_ENC(r, l, s, p[ 5]); + BF_ENC(l, r, s, p[ 6]); + BF_ENC(r, l, s, p[ 7]); + BF_ENC(l, r, s, p[ 8]); + BF_ENC(r, l, s, p[ 9]); + BF_ENC(l, r, s, p[10]); + BF_ENC(r, l, s, p[11]); + BF_ENC(l, r, s, p[12]); + BF_ENC(r, l, s, p[13]); + BF_ENC(l, r, s, p[14]); + BF_ENC(r, l, s, p[15]); + BF_ENC(l, r, s, p[16]); #if BF_ROUNDS == 20 - BF_ENC(r,l,s,p[17]); - BF_ENC(l,r,s,p[18]); - BF_ENC(r,l,s,p[19]); - BF_ENC(l,r,s,p[20]); + BF_ENC(r, l, s, p[17]); + BF_ENC(l, r, s, p[18]); + BF_ENC(r, l, s, p[19]); + BF_ENC(l, r, s, p[20]); #endif - r^=p[BF_ROUNDS+1]; + r ^= p[BF_ROUNDS + 1]; - data[1]=l&0xffffffffL; - data[0]=r&0xffffffffL; + data[1] = l & 0xffffffffL; + data[0] = r & 0xffffffffL; #else - register BF_LONG l,r,t,*k; + register BF_LONG l, r, t, *k; - l=data[0]; - r=data[1]; - k=(BF_LONG*)key; + l = data[0]; + r = data[1]; + k = (BF_LONG *)key; - l^=k[0]; - BF_ENC(r,l,k, 1); - BF_ENC(l,r,k, 2); - BF_ENC(r,l,k, 3); - BF_ENC(l,r,k, 4); - BF_ENC(r,l,k, 5); - BF_ENC(l,r,k, 6); - BF_ENC(r,l,k, 7); - BF_ENC(l,r,k, 8); - BF_ENC(r,l,k, 9); - BF_ENC(l,r,k,10); - BF_ENC(r,l,k,11); - BF_ENC(l,r,k,12); - BF_ENC(r,l,k,13); - BF_ENC(l,r,k,14); - BF_ENC(r,l,k,15); - BF_ENC(l,r,k,16); + l ^= k[0]; + BF_ENC(r, l, k, 1); + BF_ENC(l, r, k, 2); + BF_ENC(r, l, k, 3); + BF_ENC(l, r, k, 4); + BF_ENC(r, l, k, 5); + BF_ENC(l, r, k, 6); + BF_ENC(r, l, k, 7); + BF_ENC(l, r, k, 8); + BF_ENC(r, l, k, 9); + BF_ENC(l, r, k, 10); + BF_ENC(r, l, k, 11); + BF_ENC(l, r, k, 12); + BF_ENC(r, l, k, 13); + BF_ENC(l, r, k, 14); + BF_ENC(r, l, k, 15); + BF_ENC(l, r, k, 16); #if BF_ROUNDS == 20 - BF_ENC(r,l,k,17); - BF_ENC(l,r,k,18); - BF_ENC(r,l,k,19); - BF_ENC(l,r,k,20); + BF_ENC(r, l, k, 17); + BF_ENC(l, r, k, 18); + BF_ENC(r, l, k, 19); + BF_ENC(l, r, k, 20); #endif - r^=k[BF_ROUNDS+1]; + r ^= k[BF_ROUNDS + 1]; - data[1]=l&0xffffffffL; - data[0]=r&0xffffffffL; + data[1] = l & 0xffffffffL; + data[0] = r & 0xffffffffL; #endif - } +} #ifndef BF_DEFAULT_OPTIONS void BF_decrypt(BF_LONG *data, const BF_KEY *key) - { +{ #ifndef BF_PTR2 - register const BF_LONG *p,*s; - register BF_LONG l,r; + register const BF_LONG *p, *s; + register BF_LONG l, r; - p=key->P; - s= &(key->S[0]); - l=data[0]; - r=data[1]; + p = key->P; + s = &(key->S[0]); + l = data[0]; + r = data[1]; - l^=p[BF_ROUNDS+1]; + l ^= p[BF_ROUNDS + 1]; #if BF_ROUNDS == 20 - BF_ENC(r,l,s,p[20]); - BF_ENC(l,r,s,p[19]); - BF_ENC(r,l,s,p[18]); - BF_ENC(l,r,s,p[17]); + BF_ENC(r, l, s, p[20]); + BF_ENC(l, r, s, p[19]); + BF_ENC(r, l, s, p[18]); + BF_ENC(l, r, s, p[17]); #endif - BF_ENC(r,l,s,p[16]); - BF_ENC(l,r,s,p[15]); - BF_ENC(r,l,s,p[14]); - BF_ENC(l,r,s,p[13]); - BF_ENC(r,l,s,p[12]); - BF_ENC(l,r,s,p[11]); - BF_ENC(r,l,s,p[10]); - BF_ENC(l,r,s,p[ 9]); - BF_ENC(r,l,s,p[ 8]); - BF_ENC(l,r,s,p[ 7]); - BF_ENC(r,l,s,p[ 6]); - BF_ENC(l,r,s,p[ 5]); - BF_ENC(r,l,s,p[ 4]); - BF_ENC(l,r,s,p[ 3]); - BF_ENC(r,l,s,p[ 2]); - BF_ENC(l,r,s,p[ 1]); - r^=p[0]; + BF_ENC(r, l, s, p[16]); + BF_ENC(l, r, s, p[15]); + BF_ENC(r, l, s, p[14]); + BF_ENC(l, r, s, p[13]); + BF_ENC(r, l, s, p[12]); + BF_ENC(l, r, s, p[11]); + BF_ENC(r, l, s, p[10]); + BF_ENC(l, r, s, p[ 9]); + BF_ENC(r, l, s, p[ 8]); + BF_ENC(l, r, s, p[ 7]); + BF_ENC(r, l, s, p[ 6]); + BF_ENC(l, r, s, p[ 5]); + BF_ENC(r, l, s, p[ 4]); + BF_ENC(l, r, s, p[ 3]); + BF_ENC(r, l, s, p[ 2]); + BF_ENC(l, r, s, p[ 1]); + r ^= p[0]; - data[1]=l&0xffffffffL; - data[0]=r&0xffffffffL; + data[1] = l & 0xffffffffL; + data[0] = r & 0xffffffffL; #else - register BF_LONG l,r,t,*k; + register BF_LONG l, r, t, *k; - l=data[0]; - r=data[1]; - k=(BF_LONG *)key; + l = data[0]; + r = data[1]; + k = (BF_LONG *)key; - l^=k[BF_ROUNDS+1]; + l ^= k[BF_ROUNDS + 1]; #if BF_ROUNDS == 20 - BF_ENC(r,l,k,20); - BF_ENC(l,r,k,19); - BF_ENC(r,l,k,18); - BF_ENC(l,r,k,17); + BF_ENC(r, l, k, 20); + BF_ENC(l, r, k, 19); + BF_ENC(r, l, k, 18); + BF_ENC(l, r, k, 17); #endif - BF_ENC(r,l,k,16); - BF_ENC(l,r,k,15); - BF_ENC(r,l,k,14); - BF_ENC(l,r,k,13); - BF_ENC(r,l,k,12); - BF_ENC(l,r,k,11); - BF_ENC(r,l,k,10); - BF_ENC(l,r,k, 9); - BF_ENC(r,l,k, 8); - BF_ENC(l,r,k, 7); - BF_ENC(r,l,k, 6); - BF_ENC(l,r,k, 5); - BF_ENC(r,l,k, 4); - BF_ENC(l,r,k, 3); - BF_ENC(r,l,k, 2); - BF_ENC(l,r,k, 1); - r^=k[0]; + BF_ENC(r, l, k, 16); + BF_ENC(l, r, k, 15); + BF_ENC(r, l, k, 14); + BF_ENC(l, r, k, 13); + BF_ENC(r, l, k, 12); + BF_ENC(l, r, k, 11); + BF_ENC(r, l, k, 10); + BF_ENC(l, r, k, 9); + BF_ENC(r, l, k, 8); + BF_ENC(l, r, k, 7); + BF_ENC(r, l, k, 6); + BF_ENC(l, r, k, 5); + BF_ENC(r, l, k, 4); + BF_ENC(l, r, k, 3); + BF_ENC(r, l, k, 2); + BF_ENC(l, r, k, 1); + r ^= k[0]; - data[1]=l&0xffffffffL; - data[0]=r&0xffffffffL; + data[1] = l & 0xffffffffL; + data[0] = r & 0xffffffffL; #endif - } +} void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, - const BF_KEY *schedule, unsigned char *ivec, int encrypt) - { - register BF_LONG tin0,tin1; - register BF_LONG tout0,tout1,xor0,xor1; - register long l=length; - BF_LONG tin[2]; + const BF_KEY *schedule, unsigned char *ivec, int encrypt) +{ + register BF_LONG tin0, tin1; + register BF_LONG tout0, tout1, xor0, xor1; + register long l = length; + BF_LONG tin[2]; - if (encrypt) - { - n2l(ivec,tout0); - n2l(ivec,tout1); - ivec-=8; - for (l-=8; l>=0; l-=8) - { - n2l(in,tin0); - n2l(in,tin1); - tin0^=tout0; - tin1^=tout1; - tin[0]=tin0; - tin[1]=tin1; - BF_encrypt(tin,schedule); - tout0=tin[0]; - tout1=tin[1]; - l2n(tout0,out); - l2n(tout1,out); - } - if (l != -8) - { - n2ln(in,tin0,tin1,l+8); - tin0^=tout0; - tin1^=tout1; - tin[0]=tin0; - tin[1]=tin1; - BF_encrypt(tin,schedule); - tout0=tin[0]; - tout1=tin[1]; - l2n(tout0,out); - l2n(tout1,out); - } - l2n(tout0,ivec); - l2n(tout1,ivec); - } - else - { - n2l(ivec,xor0); - n2l(ivec,xor1); - ivec-=8; - for (l-=8; l>=0; l-=8) - { - n2l(in,tin0); - n2l(in,tin1); - tin[0]=tin0; - tin[1]=tin1; - BF_decrypt(tin,schedule); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2n(tout0,out); - l2n(tout1,out); - xor0=tin0; - xor1=tin1; - } - if (l != -8) - { - n2l(in,tin0); - n2l(in,tin1); - tin[0]=tin0; - tin[1]=tin1; - BF_decrypt(tin,schedule); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2nn(tout0,tout1,out,l+8); - xor0=tin0; - xor1=tin1; - } - l2n(xor0,ivec); - l2n(xor1,ivec); - } - tin0=tin1=tout0=tout1=xor0=xor1=0; - tin[0]=tin[1]=0; - } + if (encrypt) { + n2l(ivec, tout0); + n2l(ivec, tout1); + ivec -= 8; + for (l -= 8; l >= 0; l -= 8) { + n2l(in, tin0); + n2l(in, tin1); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + BF_encrypt(tin, schedule); + tout0 = tin[0]; + tout1 = tin[1]; + l2n(tout0, out); + l2n(tout1, out); + } + if (l != -8) { + n2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + BF_encrypt(tin, schedule); + tout0 = tin[0]; + tout1 = tin[1]; + l2n(tout0, out); + l2n(tout1, out); + } + l2n(tout0, ivec); + l2n(tout1, ivec); + } else { + n2l(ivec, xor0); + n2l(ivec, xor1); + ivec -= 8; + for (l -= 8; l >= 0; l -= 8) { + n2l(in, tin0); + n2l(in, tin1); + tin[0] = tin0; + tin[1] = tin1; + BF_decrypt(tin, schedule); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2n(tout0, out); + l2n(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + n2l(in, tin0); + n2l(in, tin1); + tin[0] = tin0; + tin[1] = tin1; + BF_decrypt(tin, schedule); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2nn(tout0, tout1, out, l + 8); + xor0 = tin0; + xor1 = tin1; + } + l2n(xor0, ivec); + l2n(xor1, ivec); + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + tin[0] = tin[1] = 0; +} #endif +