diff options
author | Matt Caswell <matt@openssl.org> | 2015-01-22 03:40:55 +0000 |
---|---|---|
committer | Matt Caswell <matt@openssl.org> | 2015-01-22 09:20:09 +0000 |
commit | 0f113f3ee4d629ef9a4a30911b22b224772085e5 (patch) | |
tree | e014603da5aed1d0751f587a66d6e270b6bda3de /crypto/rc4 | |
parent | 22b52164aaed31d6e93dbd2d397ace041360e6aa (diff) |
Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
Diffstat (limited to 'crypto/rc4')
-rw-r--r-- | crypto/rc4/rc4.c | 232 | ||||
-rw-r--r-- | crypto/rc4/rc4.h | 36 | ||||
-rw-r--r-- | crypto/rc4/rc4_enc.c | 488 | ||||
-rw-r--r-- | crypto/rc4/rc4_locl.h | 6 | ||||
-rw-r--r-- | crypto/rc4/rc4_skey.c | 83 | ||||
-rw-r--r-- | crypto/rc4/rc4test.c | 327 |
6 files changed, 583 insertions, 589 deletions
diff --git a/crypto/rc4/rc4.c b/crypto/rc4/rc4.c index c900b26055..99082e8919 100644 --- a/crypto/rc4/rc4.c +++ b/crypto/rc4/rc4.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 @@ -62,132 +62,118 @@ #include <openssl/rc4.h> #include <openssl/evp.h> -char *usage[]={ -"usage: rc4 args\n", -"\n", -" -in arg - input file - default stdin\n", -" -out arg - output file - default stdout\n", -" -key key - password\n", -NULL +char *usage[] = { + "usage: rc4 args\n", + "\n", + " -in arg - input file - default stdin\n", + " -out arg - output file - default stdout\n", + " -key key - password\n", + NULL }; int main(int argc, char *argv[]) - { - FILE *in=NULL,*out=NULL; - char *infile=NULL,*outfile=NULL,*keystr=NULL; - RC4_KEY key; - char buf[BUFSIZ]; - int badops=0,i; - char **pp; - unsigned char md[MD5_DIGEST_LENGTH]; +{ + FILE *in = NULL, *out = NULL; + char *infile = NULL, *outfile = NULL, *keystr = NULL; + RC4_KEY key; + char buf[BUFSIZ]; + int badops = 0, i; + char **pp; + unsigned char md[MD5_DIGEST_LENGTH]; + + argc--; + argv++; + while (argc >= 1) { + if (strcmp(*argv, "-in") == 0) { + if (--argc < 1) + goto bad; + infile = *(++argv); + } else if (strcmp(*argv, "-out") == 0) { + if (--argc < 1) + goto bad; + outfile = *(++argv); + } else if (strcmp(*argv, "-key") == 0) { + if (--argc < 1) + goto bad; + keystr = *(++argv); + } else { + fprintf(stderr, "unknown option %s\n", *argv); + badops = 1; + break; + } + argc--; + argv++; + } - argc--; - argv++; - while (argc >= 1) - { - if (strcmp(*argv,"-in") == 0) - { - if (--argc < 1) goto bad; - infile= *(++argv); - } - else if (strcmp(*argv,"-out") == 0) - { - if (--argc < 1) goto bad; - outfile= *(++argv); - } - else if (strcmp(*argv,"-key") == 0) - { - if (--argc < 1) goto bad; - keystr= *(++argv); - } - else - { - fprintf(stderr,"unknown option %s\n",*argv); - badops=1; - break; - } - argc--; - argv++; - } + if (badops) { + bad: + for (pp = usage; (*pp != NULL); pp++) + fprintf(stderr, "%s", *pp); + exit(1); + } - if (badops) - { -bad: - for (pp=usage; (*pp != NULL); pp++) - fprintf(stderr,"%s",*pp); - exit(1); - } + if (infile == NULL) + in = stdin; + else { + in = fopen(infile, "r"); + if (in == NULL) { + perror("open"); + exit(1); + } - if (infile == NULL) - in=stdin; - else - { - in=fopen(infile,"r"); - if (in == NULL) - { - perror("open"); - exit(1); - } + } + if (outfile == NULL) + out = stdout; + else { + out = fopen(outfile, "w"); + if (out == NULL) { + perror("open"); + exit(1); + } + } - } - if (outfile == NULL) - out=stdout; - else - { - out=fopen(outfile,"w"); - if (out == NULL) - { - perror("open"); - exit(1); - } - } - #ifdef OPENSSL_SYS_MSDOS - /* This should set the file to binary mode. */ - { -#include <fcntl.h> - setmode(fileno(in),O_BINARY); - setmode(fileno(out),O_BINARY); - } + /* This should set the file to binary mode. */ + { +# include <fcntl.h> + setmode(fileno(in), O_BINARY); + setmode(fileno(out), O_BINARY); + } #endif - if (keystr == NULL) - { /* get key */ - i=EVP_read_pw_string(buf,BUFSIZ,"Enter RC4 password:",0); - if (i != 0) - { - OPENSSL_cleanse(buf,BUFSIZ); - fprintf(stderr,"bad password read\n"); - exit(1); - } - keystr=buf; - } + if (keystr == NULL) { /* get key */ + i = EVP_read_pw_string(buf, BUFSIZ, "Enter RC4 password:", 0); + if (i != 0) { + OPENSSL_cleanse(buf, BUFSIZ); + fprintf(stderr, "bad password read\n"); + exit(1); + } + keystr = buf; + } - EVP_Digest((unsigned char *)keystr,strlen(keystr),md,NULL,EVP_md5(),NULL); - OPENSSL_cleanse(keystr,strlen(keystr)); - RC4_set_key(&key,MD5_DIGEST_LENGTH,md); - - for(;;) - { - i=fread(buf,1,BUFSIZ,in); - if (i == 0) break; - if (i < 0) - { - perror("read"); - exit(1); - } - RC4(&key,(unsigned int)i,(unsigned char *)buf, - (unsigned char *)buf); - i=fwrite(buf,(unsigned int)i,1,out); - if (i != 1) - { - perror("write"); - exit(1); - } - } - fclose(out); - fclose(in); - exit(0); - return(1); - } + EVP_Digest((unsigned char *)keystr, strlen(keystr), md, NULL, EVP_md5(), + NULL); + OPENSSL_cleanse(keystr, strlen(keystr)); + RC4_set_key(&key, MD5_DIGEST_LENGTH, md); + for (;;) { + i = fread(buf, 1, BUFSIZ, in); + if (i == 0) + break; + if (i < 0) { + perror("read"); + exit(1); + } + RC4(&key, (unsigned int)i, (unsigned char *)buf, + (unsigned char *)buf); + i = fwrite(buf, (unsigned int)i, 1, out); + if (i != 1) { + perror("write"); + exit(1); + } + } + fclose(out); + fclose(in); + exit(0); + return (1); +} diff --git a/crypto/rc4/rc4.h b/crypto/rc4/rc4.h index 29d1acccf5..6f52cc606f 100644 --- a/crypto/rc4/rc4.h +++ b/crypto/rc4/rc4.h @@ -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 @@ -57,30 +57,28 @@ */ #ifndef HEADER_RC4_H -#define HEADER_RC4_H +# define HEADER_RC4_H -#include <openssl/opensslconf.h> /* OPENSSL_NO_RC4, RC4_INT */ -#ifdef OPENSSL_NO_RC4 -#error RC4 is disabled. -#endif +# include <openssl/opensslconf.h>/* OPENSSL_NO_RC4, RC4_INT */ +# ifdef OPENSSL_NO_RC4 +# error RC4 is disabled. +# endif -#include <stddef.h> +# include <stddef.h> #ifdef __cplusplus extern "C" { #endif -typedef struct rc4_key_st - { - RC4_INT x,y; - RC4_INT data[256]; - } RC4_KEY; +typedef struct rc4_key_st { + RC4_INT x, y; + RC4_INT data[256]; +} RC4_KEY; - const char *RC4_options(void); void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data); void RC4(RC4_KEY *key, size_t len, const unsigned char *indata, - unsigned char *outdata); + unsigned char *outdata); #ifdef __cplusplus } diff --git a/crypto/rc4/rc4_enc.c b/crypto/rc4/rc4_enc.c index dff4fc30ea..19ddd2358d 100644 --- a/crypto/rc4/rc4_enc.c +++ b/crypto/rc4/rc4_enc.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 @@ -69,248 +69,266 @@ */ void RC4(RC4_KEY *key, size_t len, const unsigned char *indata, - unsigned char *outdata) - { - register RC4_INT *d; - register RC4_INT x,y,tx,ty; - size_t i; - - x=key->x; - y=key->y; - d=key->data; + unsigned char *outdata) +{ + register RC4_INT *d; + register RC4_INT x, y, tx, ty; + size_t i; + + x = key->x; + y = key->y; + d = key->data; #if defined(RC4_CHUNK) && !defined(PEDANTIC) - /*- - * The original reason for implementing this(*) was the fact that - * pre-21164a Alpha CPUs don't have byte load/store instructions - * and e.g. a byte store has to be done with 64-bit load, shift, - * and, or and finally 64-bit store. Peaking data and operating - * at natural word size made it possible to reduce amount of - * instructions as well as to perform early read-ahead without - * suffering from RAW (read-after-write) hazard. This resulted - * in ~40%(**) performance improvement on 21064 box with gcc. - * But it's not only Alpha users who win here:-) Thanks to the - * early-n-wide read-ahead this implementation also exhibits - * >40% speed-up on SPARC and 20-30% on 64-bit MIPS (depending - * on sizeof(RC4_INT)). - * - * (*) "this" means code which recognizes the case when input - * and output pointers appear to be aligned at natural CPU - * word boundary - * (**) i.e. according to 'apps/openssl speed rc4' benchmark, - * crypto/rc4/rc4speed.c exhibits almost 70% speed-up... - * - * Cavets. - * - * - RC4_CHUNK="unsigned long long" should be a #1 choice for - * UltraSPARC. Unfortunately gcc generates very slow code - * (2.5-3 times slower than one generated by Sun's WorkShop - * C) and therefore gcc (at least 2.95 and earlier) should - * always be told that RC4_CHUNK="unsigned long". - * - * <appro@fy.chalmers.se> - */ + /*- + * The original reason for implementing this(*) was the fact that + * pre-21164a Alpha CPUs don't have byte load/store instructions + * and e.g. a byte store has to be done with 64-bit load, shift, + * and, or and finally 64-bit store. Peaking data and operating + * at natural word size made it possible to reduce amount of + * instructions as well as to perform early read-ahead without + * suffering from RAW (read-after-write) hazard. This resulted + * in ~40%(**) performance improvement on 21064 box with gcc. + * But it's not only Alpha users who win here:-) Thanks to the + * early-n-wide read-ahead this implementation also exhibits + * >40% speed-up on SPARC and 20-30% on 64-bit MIPS (depending + * on sizeof(RC4_INT)). + * + * (*) "this" means code which recognizes the case when input + * and output pointers appear to be aligned at natural CPU + * word boundary + * (**) i.e. according to 'apps/openssl speed rc4' benchmark, + * crypto/rc4/rc4speed.c exhibits almost 70% speed-up... + * + * Cavets. + * + * - RC4_CHUNK="unsigned long long" should be a #1 choice for + * UltraSPARC. Unfortunately gcc generates very slow code + * (2.5-3 times slower than one generated by Sun's WorkShop + * C) and therefore gcc (at least 2.95 and earlier) should + * always be told that RC4_CHUNK="unsigned long". + * + * <appro@fy.chalmers.se> + */ -# define RC4_STEP ( \ - x=(x+1) &0xff, \ - tx=d[x], \ - y=(tx+y)&0xff, \ - ty=d[y], \ - d[y]=tx, \ - d[x]=ty, \ - (RC4_CHUNK)d[(tx+ty)&0xff]\ - ) +# define RC4_STEP ( \ + x=(x+1) &0xff, \ + tx=d[x], \ + y=(tx+y)&0xff, \ + ty=d[y], \ + d[y]=tx, \ + d[x]=ty, \ + (RC4_CHUNK)d[(tx+ty)&0xff]\ + ) - if ( ( ((size_t)indata & (sizeof(RC4_CHUNK)-1)) | - ((size_t)outdata & (sizeof(RC4_CHUNK)-1)) ) == 0 ) - { - RC4_CHUNK ichunk,otp; - const union { long one; char little; } is_endian = {1}; + if ((((size_t)indata & (sizeof(RC4_CHUNK) - 1)) | + ((size_t)outdata & (sizeof(RC4_CHUNK) - 1))) == 0) { + RC4_CHUNK ichunk, otp; + const union { + long one; + char little; + } is_endian = { + 1 + }; - /*- - * I reckon we can afford to implement both endian - * cases and to decide which way to take at run-time - * because the machine code appears to be very compact - * and redundant 1-2KB is perfectly tolerable (i.e. - * in case the compiler fails to eliminate it:-). By - * suggestion from Terrel Larson <terr@terralogic.net> - * who also stands for the is_endian union:-) - * - * Special notes. - * - * - is_endian is declared automatic as doing otherwise - * (declaring static) prevents gcc from eliminating - * the redundant code; - * - compilers (those I've tried) don't seem to have - * problems eliminating either the operators guarded - * by "if (sizeof(RC4_CHUNK)==8)" or the condition - * expressions themselves so I've got 'em to replace - * corresponding #ifdefs from the previous version; - * - I chose to let the redundant switch cases when - * sizeof(RC4_CHUNK)!=8 be (were also #ifdefed - * before); - * - in case you wonder "&(sizeof(RC4_CHUNK)*8-1)" in - * [LB]ESHFT guards against "shift is out of range" - * warnings when sizeof(RC4_CHUNK)!=8 - * - * <appro@fy.chalmers.se> - */ - if (!is_endian.little) - { /* BIG-ENDIAN CASE */ -# define BESHFT(c) (((sizeof(RC4_CHUNK)-(c)-1)*8)&(sizeof(RC4_CHUNK)*8-1)) - for (;len&(0-sizeof(RC4_CHUNK));len-=sizeof(RC4_CHUNK)) - { - ichunk = *(RC4_CHUNK *)indata; - otp = RC4_STEP<<BESHFT(0); - otp |= RC4_STEP<<BESHFT(1); - otp |= RC4_STEP<<BESHFT(2); - otp |= RC4_STEP<<BESHFT(3); - if (sizeof(RC4_CHUNK)==8) - { - otp |= RC4_STEP<<BESHFT(4); - otp |= RC4_STEP<<BESHFT(5); - otp |= RC4_STEP<<BESHFT(6); - otp |= RC4_STEP<<BESHFT(7); - } - *(RC4_CHUNK *)outdata = otp^ichunk; - indata += sizeof(RC4_CHUNK); - outdata += sizeof(RC4_CHUNK); - } - if (len) - { - RC4_CHUNK mask=(RC4_CHUNK)-1, ochunk; + /*- + * I reckon we can afford to implement both endian + * cases and to decide which way to take at run-time + * because the machine code appears to be very compact + * and redundant 1-2KB is perfectly tolerable (i.e. + * in case the compiler fails to eliminate it:-). By + * suggestion from Terrel Larson <terr@terralogic.net> + * who also stands for the is_endian union:-) + * + * Special notes. + * + * - is_endian is declared automatic as doing otherwise + * (declaring static) prevents gcc from eliminating + * the redundant code; + * - compilers (those I've tried) don't seem to have + * problems eliminating either the operators guarded + * by "if (sizeof(RC4_CHUNK)==8)" or the condition + * expressions themselves so I've got 'em to replace + * corresponding #ifdefs from the previous version; + * - I chose to let the redundant switch cases when + * sizeof(RC4_CHUNK)!=8 be (were also #ifdefed + * before); + * - in case you wonder "&(sizeof(RC4_CHUNK)*8-1)" in + * [LB]ESHFT guards against "shift is out of range" + * warnings when sizeof(RC4_CHUNK)!=8 + * + * <appro@fy.chalmers.se> + */ + if (!is_endian.little) { /* BIG-ENDIAN CASE */ +# define BESHFT(c) (((sizeof(RC4_CHUNK)-(c)-1)*8)&(sizeof(RC4_CHUNK)*8-1)) + for (; len & (0 - sizeof(RC4_CHUNK)); len -= sizeof(RC4_CHUNK)) { + ichunk = *(RC4_CHUNK *) indata; + otp = RC4_STEP << BESHFT(0); + otp |= RC4_STEP << BESHFT(1); + otp |= RC4_STEP << BESHFT(2); + otp |= RC4_STEP << BESHFT(3); + if (sizeof(RC4_CHUNK) == 8) { + otp |= RC4_STEP << BESHFT(4); + otp |= RC4_STEP << BESHFT(5); + otp |= RC4_STEP << BESHFT(6); + otp |= RC4_STEP << BESHFT(7); + } + *(RC4_CHUNK *) outdata = otp ^ ichunk; + indata += sizeof(RC4_CHUNK); + outdata += sizeof(RC4_CHUNK); + } + if (len) { + RC4_CHUNK mask = (RC4_CHUNK) - 1, ochunk; - ichunk = *(RC4_CHUNK *)indata; - ochunk = *(RC4_CHUNK *)outdata; - otp = 0; - i = BESHFT(0); - mask <<= (sizeof(RC4_CHUNK)-len)<<3; - switch (len&(sizeof(RC4_CHUNK)-1)) - { - case 7: otp = RC4_STEP<<i, i-=8; - case 6: otp |= RC4_STEP<<i, i-=8; - case 5: otp |= RC4_STEP<<i, i-=8; - case 4: otp |= RC4_STEP<<i, i-=8; - case 3: otp |= RC4_STEP<<i, i-=8; - case 2: otp |= RC4_STEP<<i, i-=8; - case 1: otp |= RC4_STEP<<i, i-=8; - case 0: ; /* - * it's never the case, - * but it has to be here - * for ultrix? - */ - } - ochunk &= ~mask; - ochunk |= (otp^ichunk) & mask; - *(RC4_CHUNK *)outdata = ochunk; - } - key->x=x; - key->y=y; - return; - } - else - { /* LITTLE-ENDIAN CASE */ -# define LESHFT(c) (((c)*8)&(sizeof(RC4_CHUNK)*8-1)) - for (;len&(0-sizeof(RC4_CHUNK));len-=sizeof(RC4_CHUNK)) - { - ichunk = *(RC4_CHUNK *)indata; - otp = RC4_STEP; - otp |= RC4_STEP<<8; - otp |= RC4_STEP<<16; - otp |= RC4_STEP<<24; - if (sizeof(RC4_CHUNK)==8) - { - otp |= RC4_STEP<<LESHFT(4); - otp |= RC4_STEP<<LESHFT(5); - otp |= RC4_STEP<<LESHFT(6); - otp |= RC4_STEP<<LESHFT(7); - } - *(RC4_CHUNK *)outdata = otp^ichunk; - indata += sizeof(RC4_CHUNK); - outdata += sizeof(RC4_CHUNK); - } - if (len) - { - RC4_CHUNK mask=(RC4_CHUNK)-1, ochunk; + ichunk = *(RC4_CHUNK *) indata; + ochunk = *(RC4_CHUNK *) outdata; + otp = 0; + i = BESHFT(0); + mask <<= (sizeof(RC4_CHUNK) - len) << 3; + switch (len & (sizeof(RC4_CHUNK) - 1)) { + case 7: + otp = RC4_STEP << i, i -= 8; + case 6: + otp |= RC4_STEP << i, i -= 8; + case 5: + otp |= RC4_STEP << i, i -= 8; + case 4: + otp |= RC4_STEP << i, i -= 8; + case 3: + otp |= RC4_STEP << i, i -= 8; + case 2: + otp |= RC4_STEP << i, i -= 8; + case 1: + otp |= RC4_STEP << i, i -= 8; + case 0:; /* + * it's never the case, + * but it has to be here + * for ultrix? + */ + } + ochunk &= ~mask; + ochunk |= (otp ^ ichunk) & mask; + *(RC4_CHUNK *) outdata = ochunk; + } + key->x = x; + key->y = y; + return; + } else { /* LITTLE-ENDIAN CASE */ +# define LESHFT(c) (((c)*8)&(sizeof(RC4_CHUNK)*8-1)) + for (; len & (0 - sizeof(RC4_CHUNK)); len -= sizeof(RC4_CHUNK)) { + ichunk = *(RC4_CHUNK *) indata; + otp = RC4_STEP; + otp |= RC4_STEP << 8; + otp |= RC4_STEP << 16; + otp |= RC4_STEP << 24; + if (sizeof(RC4_CHUNK) == 8) { + otp |= RC4_STEP << LESHFT(4); + otp |= RC4_STEP << LESHFT(5); + otp |= RC4_STEP << LESHFT(6); + otp |= RC4_STEP << LESHFT(7); + } + *(RC4_CHUNK *) outdata = otp ^ ichunk; + indata += sizeof(RC4_CHUNK); + outdata += sizeof(RC4_CHUNK); + } + if (len) { + RC4_CHUNK mask = (RC4_CHUNK) - 1, ochunk; - ichunk = *(RC4_CHUNK *)indata; - ochunk = *(RC4_CHUNK *)outdata; - otp = 0; - i = 0; - mask >>= (sizeof(RC4_CHUNK)-len)<<3; - switch (len&(sizeof(RC4_CHUNK)-1)) - { - case 7: otp = RC4_STEP, i+=8; - case 6: otp |= RC4_STEP<<i, i+=8; - case 5: otp |= RC4_STEP<<i, i+=8; - case 4: otp |= RC4_STEP<<i, i+=8; - case 3: otp |= RC4_STEP<<i, i+=8; - case 2: otp |= RC4_STEP<<i, i+=8; - case 1: otp |= RC4_STEP<<i, i+=8; - case 0: ; /* - * it's never the case, - * but it has to be here - * for ultrix? - */ - } - ochunk &= ~mask; - ochunk |= (otp^ichunk) & mask; - *(RC4_CHUNK *)outdata = ochunk; - } - key->x=x; - key->y=y; - return; - } - } + ichunk = *(RC4_CHUNK *) indata; + ochunk = *(RC4_CHUNK *) outdata; + otp = 0; + i = 0; + mask >>= (sizeof(RC4_CHUNK) - len) << 3; + switch (len & (sizeof(RC4_CHUNK) - 1)) { + case 7: + otp = RC4_STEP, i += 8; + case 6: + otp |= RC4_STEP << i, i += 8; + case 5: + otp |= RC4_STEP << i, i += 8; + case 4: + otp |= RC4_STEP << i, i += 8; + case 3: + otp |= RC4_STEP << i, i += 8; + case 2: + otp |= RC4_STEP << i, i += 8; + case 1: + otp |= RC4_STEP << i, i += 8; + case 0:; /* + * it's never the case, + * but it has to be here + * for ultrix? + */ + } + ochunk &= ~mask; + ochunk |= (otp ^ ichunk) & mask; + *(RC4_CHUNK *) outdata = ochunk; + } + key->x = x; + key->y = y; + return; + } + } #endif #define LOOP(in,out) \ - x=((x+1)&0xff); \ - tx=d[x]; \ - y=(tx+y)&0xff; \ - d[x]=ty=d[y]; \ - d[y]=tx; \ - (out) = d[(tx+ty)&0xff]^ (in); + x=((x+1)&0xff); \ + tx=d[x]; \ + y=(tx+y)&0xff; \ + d[x]=ty=d[y]; \ + d[y]=tx; \ + (out) = d[(tx+ty)&0xff]^ (in); #ifndef RC4_INDEX -#define RC4_LOOP(a,b,i) LOOP(*((a)++),*((b)++)) +# define RC4_LOOP(a,b,i) LOOP(*((a)++),*((b)++)) #else -#define RC4_LOOP(a,b,i) LOOP(a[i],b[i]) +# define RC4_LOOP(a,b,i) LOOP(a[i],b[i]) #endif - i=len>>3; - if (i) - { - for (;;) - { - RC4_LOOP(indata,outdata,0); - RC4_LOOP(indata,outdata,1); - RC4_LOOP(indata,outdata,2); - RC4_LOOP(indata,outdata,3); - RC4_LOOP(indata,outdata,4); - RC4_LOOP(indata,outdata,5); - RC4_LOOP(indata,outdata,6); - RC4_LOOP(indata,outdata,7); + i = len >> 3; + if (i) { + for (;;) { + RC4_LOOP(indata, outdata, 0); + RC4_LOOP(indata, outdata, 1); + RC4_LOOP(indata, outdata, 2); + RC4_LOOP(indata, outdata, 3); + RC4_LOOP(indata, outdata, 4); + RC4_LOOP(indata, outdata, 5); + RC4_LOOP(indata, outdata, 6); + RC4_LOOP(indata, outdata, 7); #ifdef RC4_INDEX - indata+=8; - outdata+=8; + indata += 8; + outdata += 8; #endif - if (--i == 0) break; - } - } - i=len&0x07; - if (i) - { - for (;;) - { - RC4_LOOP(indata,outdata,0); if (--i == 0) break; - RC4_LOOP(indata,outdata,1); if (--i == 0) break; - RC4_LOOP(indata,outdata,2); if (--i == 0) break; - RC4_LOOP(indata,outdata,3); if (--i == 0) break; - RC4_LOOP(indata,outdata,4); if (--i == 0) break; - RC4_LOOP(indata,outdata,5); if (--i == 0) break; - RC4_LOOP(indata,outdata,6); if (--i == 0) break; - } - } - key->x=x; - key->y=y; - } + if (--i == 0) + break; + } + } + i = len & 0x07; + if (i) { + for (;;) { + RC4_LOOP(indata, outdata, 0); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 1); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 2); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 3); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 4); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 5); + if (--i == 0) + break; + RC4_LOOP(indata, outdata, 6); + if (--i == 0) + break; + } + } + key->x = x; + key->y = y; +} diff --git a/crypto/rc4/rc4_locl.h b/crypto/rc4/rc4_locl.h index c712e1632e..faf8742f01 100644 --- a/crypto/rc4/rc4_locl.h +++ b/crypto/rc4/rc4_locl.h @@ -1,5 +1,5 @@ #ifndef HEADER_RC4_LOCL_H -#define HEADER_RC4_LOCL_H -#include <openssl/opensslconf.h> -#include <cryptlib.h> +# define HEADER_RC4_LOCL_H +# include <openssl/opensslconf.h> +# include <cryptlib.h> #endif diff --git a/crypto/rc4/rc4_skey.c b/crypto/rc4/rc4_skey.c index d14a6e13ce..ce382247ae 100644 --- a/crypto/rc4/rc4_skey.c +++ b/crypto/rc4/rc4_skey.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. |