diff options
Diffstat (limited to 'openssl/crypto/des/fcrypt_b.c')
| -rw-r--r-- | openssl/crypto/des/fcrypt_b.c | 123 |
1 files changed, 60 insertions, 63 deletions
diff --git a/openssl/crypto/des/fcrypt_b.c b/openssl/crypto/des/fcrypt_b.c index 882281693..b9e87383d 100644 --- a/openssl/crypto/des/fcrypt_b.c +++ b/openssl/crypto/des/fcrypt_b.c @@ -5,21 +5,21 @@ * 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 +34,10 @@ * 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 +49,7 @@ * 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 @@ -58,9 +58,9 @@ #include <stdio.h> -/* This version of crypt has been developed from my MIT compatible - * DES library. - * The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au +/* + * This version of crypt has been developed from my MIT compatible DES + * library. The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au * Eric Young (eay@cryptsoft.com) */ @@ -70,74 +70,71 @@ #undef PERM_OP #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ - (b)^=(t),\ - (a)^=((t)<<(n))) + (b)^=(t),\ + (a)^=((t)<<(n))) #undef HPERM_OP #define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ - (a)=(a)^(t)^(t>>(16-(n))))\ + (a)=(a)^(t)^(t>>(16-(n))))\ void fcrypt_body(DES_LONG *out, DES_key_schedule *ks, DES_LONG Eswap0, - DES_LONG Eswap1) - { - register DES_LONG l,r,t,u; + DES_LONG Eswap1) +{ + register DES_LONG l, r, t, u; #ifdef DES_PTR - register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans; + register const unsigned char *des_SP = (const unsigned char *)DES_SPtrans; #endif - register DES_LONG *s; - register int j; - register DES_LONG E0,E1; + register DES_LONG *s; + register int j; + register DES_LONG E0, E1; - l=0; - r=0; + l = 0; + r = 0; - s=(DES_LONG *)ks; - E0=Eswap0; - E1=Eswap1; + s = (DES_LONG *)ks; + E0 = Eswap0; + E1 = Eswap1; - for (j=0; j<25; j++) - { + for (j = 0; j < 25; j++) { #ifndef DES_UNROLL - register int i; + register int i; - for (i=0; i<32; i+=4) - { - D_ENCRYPT(l,r,i+0); /* 1 */ - D_ENCRYPT(r,l,i+2); /* 2 */ - } + for (i = 0; i < 32; i += 4) { + D_ENCRYPT(l, r, i + 0); /* 1 */ + D_ENCRYPT(r, l, i + 2); /* 2 */ + } #else - D_ENCRYPT(l,r, 0); /* 1 */ - D_ENCRYPT(r,l, 2); /* 2 */ - D_ENCRYPT(l,r, 4); /* 3 */ - D_ENCRYPT(r,l, 6); /* 4 */ - D_ENCRYPT(l,r, 8); /* 5 */ - D_ENCRYPT(r,l,10); /* 6 */ - D_ENCRYPT(l,r,12); /* 7 */ - D_ENCRYPT(r,l,14); /* 8 */ - D_ENCRYPT(l,r,16); /* 9 */ - D_ENCRYPT(r,l,18); /* 10 */ - D_ENCRYPT(l,r,20); /* 11 */ - D_ENCRYPT(r,l,22); /* 12 */ - D_ENCRYPT(l,r,24); /* 13 */ - D_ENCRYPT(r,l,26); /* 14 */ - D_ENCRYPT(l,r,28); /* 15 */ - D_ENCRYPT(r,l,30); /* 16 */ + D_ENCRYPT(l, r, 0); /* 1 */ + D_ENCRYPT(r, l, 2); /* 2 */ + D_ENCRYPT(l, r, 4); /* 3 */ + D_ENCRYPT(r, l, 6); /* 4 */ + D_ENCRYPT(l, r, 8); /* 5 */ + D_ENCRYPT(r, l, 10); /* 6 */ + D_ENCRYPT(l, r, 12); /* 7 */ + D_ENCRYPT(r, l, 14); /* 8 */ + D_ENCRYPT(l, r, 16); /* 9 */ + D_ENCRYPT(r, l, 18); /* 10 */ + D_ENCRYPT(l, r, 20); /* 11 */ + D_ENCRYPT(r, l, 22); /* 12 */ + D_ENCRYPT(l, r, 24); /* 13 */ + D_ENCRYPT(r, l, 26); /* 14 */ + D_ENCRYPT(l, r, 28); /* 15 */ + D_ENCRYPT(r, l, 30); /* 16 */ #endif - t=l; - l=r; - r=t; - } - l=ROTATE(l,3)&0xffffffffL; - r=ROTATE(r,3)&0xffffffffL; - - PERM_OP(l,r,t, 1,0x55555555L); - PERM_OP(r,l,t, 8,0x00ff00ffL); - PERM_OP(l,r,t, 2,0x33333333L); - PERM_OP(r,l,t,16,0x0000ffffL); - PERM_OP(l,r,t, 4,0x0f0f0f0fL); + t = l; + l = r; + r = t; + } + l = ROTATE(l, 3) & 0xffffffffL; + r = ROTATE(r, 3) & 0xffffffffL; - out[0]=r; - out[1]=l; - } + PERM_OP(l, r, t, 1, 0x55555555L); + PERM_OP(r, l, t, 8, 0x00ff00ffL); + PERM_OP(l, r, t, 2, 0x33333333L); + PERM_OP(r, l, t, 16, 0x0000ffffL); + PERM_OP(l, r, t, 4, 0x0f0f0f0fL); + out[0] = r; + out[1] = l; +} |