diff options
author | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:56:39 +0000 |
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committer | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:56:39 +0000 |
commit | 58964a492275ca9a59a0cd9c8155cb2491b4b909 (patch) | |
tree | c7b16876a5789463bbbb468ef4829c8129b3d718 /crypto/rc2/rc2_ecb.c | |
parent | d02b48c63a58ea4367a0e905979f140b7d090f86 (diff) |
Import of old SSLeay release: SSLeay 0.9.0b
Diffstat (limited to 'crypto/rc2/rc2_ecb.c')
-rw-r--r-- | crypto/rc2/rc2_ecb.c | 85 |
1 files changed, 6 insertions, 79 deletions
diff --git a/crypto/rc2/rc2_ecb.c b/crypto/rc2/rc2_ecb.c index 65b5d3536a..96239cd4e0 100644 --- a/crypto/rc2/rc2_ecb.c +++ b/crypto/rc2/rc2_ecb.c @@ -1,5 +1,5 @@ /* crypto/rc2/rc2_ecb.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written @@ -59,7 +59,7 @@ #include "rc2.h" #include "rc2_locl.h" -char *RC2_version="RC2 part of SSLeay 0.8.1b 29-Jun-1998"; +char *RC2_version="RC2 part of SSLeay 0.9.0b 29-Jun-1998"; /* RC2 as implemented frm a posting from * Newsgroups: sci.crypt @@ -79,85 +79,12 @@ int encrypt; c2l(in,l); d[0]=l; c2l(in,l); d[1]=l; - RC2_encrypt(d,ks,encrypt); + if (encrypt) + RC2_encrypt(d,ks); + else + RC2_decrypt(d,ks); l=d[0]; l2c(l,out); l=d[1]; l2c(l,out); l=d[0]=d[1]=0; } -void RC2_encrypt(d,key,encrypt) -unsigned long *d; -RC2_KEY *key; -int encrypt; - { - int i,n; - register RC2_INT *p0,*p1; - register RC2_INT x0,x1,x2,x3,t; - unsigned long l; - - l=d[0]; - x0=(RC2_INT)l&0xffff; - x1=(RC2_INT)(l>>16L); - l=d[1]; - x2=(RC2_INT)l&0xffff; - x3=(RC2_INT)(l>>16L); - - n=3; - i=5; - if (encrypt) - { - p0=p1= &(key->data[0]); - for (;;) - { - t=(x0+(x1& ~x3)+(x2&x3)+ *(p0++))&0xffff; - x0=(t<<1)|(t>>15); - t=(x1+(x2& ~x0)+(x3&x0)+ *(p0++))&0xffff; - x1=(t<<2)|(t>>14); - t=(x2+(x3& ~x1)+(x0&x1)+ *(p0++))&0xffff; - x2=(t<<3)|(t>>13); - t=(x3+(x0& ~x2)+(x1&x2)+ *(p0++))&0xffff; - x3=(t<<5)|(t>>11); - - if (--i == 0) - { - if (--n == 0) break; - i=(n == 2)?6:5; - - x0+=p1[x3&0x3f]; - x1+=p1[x0&0x3f]; - x2+=p1[x1&0x3f]; - x3+=p1[x2&0x3f]; - } - } - } - else - { - p0= &(key->data[63]); - p1= &(key->data[0]); - for (;;) - { - t=((x3<<11)|(x3>>5))&0xffff; - x3=(t-(x0& ~x2)-(x1&x2)- *(p0--))&0xffff; - t=((x2<<13)|(x2>>3))&0xffff; - x2=(t-(x3& ~x1)-(x0&x1)- *(p0--))&0xffff; - t=((x1<<14)|(x1>>2))&0xffff; - x1=(t-(x2& ~x0)-(x3&x0)- *(p0--))&0xffff; - t=((x0<<15)|(x0>>1))&0xffff; - x0=(t-(x1& ~x3)-(x2&x3)- *(p0--))&0xffff; - - if (--i == 0) - { - if (--n == 0) break; - i=(n == 2)?6:5; - - x3=(x3-p1[x2&0x3f])&0xffff; - x2=(x2-p1[x1&0x3f])&0xffff; - x1=(x1-p1[x0&0x3f])&0xffff; - x0=(x0-p1[x3&0x3f])&0xffff; - } - } - } - - d[0]=(unsigned long)(x0&0xffff)|((unsigned long)(x1&0xffff)<<16L); - d[1]=(unsigned long)(x2&0xffff)|((unsigned long)(x3&0xffff)<<16L); - } |