added libtomcrypt-0.93

Author: Tom St Denis

aes.c

@@ -1,3 +1,14 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
+
 /* AES implementation by Tom St Denis
  *
  * Derived from the Public Domain source code by

aes_tab.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 /* The precomputed tables for AES */
 /*
 Te0[x] = S [x].[02, 01, 01, 03];

base64.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 /* compliant base64 code donated by Wayne Scott (wscott@bitmover.com) */
 #include "mycrypt.h"
 

bits.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 /* portable way to get secure random bits to feed a PRNG */
 #include "mycrypt.h"
 
@@ -35,45 +45,8 @@ static unsigned long rng_nix(unsigned char *buf, unsigned long len,
 
 #endif /* DEVRANDOM */
 
-#ifdef SONY_PS2
-#include <eetypes.h>
-#include <eeregs.h>
-#define min(a,b) ((a) < (b) ? (a) : (b))
-// Very simple/stupid MD5-based RNG that samples "entropy" from various PS2 control registers
-static unsigned long rng_ps2(unsigned char *buf, unsigned long len, 
-                             void (*callback)(void))
-{
-  static unsigned long lastx[2] = { 0xaab7cb4b2fd3b2b9, 0xcec58aff72afe49f }; // md5sum of bits.c
-  unsigned long j;
-  unsigned int samples[10];  // number of sample data sources
-  int l;
-  hash_state md;
-
-  for (j = 0; j < len; j += sizeof(lastx)) {
-    md5_init(&md);
-    samples[0] = *T2_COUNT;
-    samples[1] = *T3_COUNT;
-    samples[2] = *IPU_TOP;
-    samples[3] = *GIF_TAG0;
-    samples[4] = *GIF_TAG1;
-    samples[5] = *GIF_TAG2;
-    samples[6] = *VIF1_CODE;
-    samples[7] = *VIF0_CODE;
-    samples[8] = *D0_MADR;
-    samples[9] = *D1_MADR;
-    md5_process(&md, (unsigned char *)(&samples[0]), sizeof(samples));
-    // include previous round
-    md5_process(&md, (unsigned char *)(&lastx[0]), sizeof(lastx));
-    md5_done(&md, (unsigned char *)(&lastx[0]));
-    l = min(sizeof(lastx), len-j);
-    memcpy(buf+j, &lastx[0], l); //min(sizeof(lastx), len-j));
-  }
-  return len;
-}
-#endif /* SONY_PS2 */
-
 /* on ANSI C platforms with 100 < CLOCKS_PER_SEC < 10000 */
-#if !defined(SONY_PS2) && defined(CLOCKS_PER_SEC)
+#if defined(CLOCKS_PER_SEC)
 
 #define ANSI_RNG
 
@@ -143,9 +116,7 @@ unsigned long rng_get_bytes(unsigned char *buf, unsigned long len,
 
    _ARGCHK(buf != NULL);
 
-#ifdef SONY_PS2
-   x = rng_ps2(buf, len, callback);   if (x != 0) { return x; }
-#elif defined(DEVRANDOM)
+#if defined(DEVRANDOM)
    x = rng_nix(buf, len, callback);   if (x != 0) { return x; }
 #endif
 #ifdef WIN32

blowfish.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 #include "mycrypt.h"
 
 #ifdef BLOWFISH
@@ -350,7 +360,11 @@ int blowfish_setup(const unsigned char *key, int keylen, int num_rounds,
    return CRYPT_OK;
 }
 
+#ifndef __GNUC__
 #define F(x) ((S1[byte(x,3)] + S2[byte(x,2)]) ^ S3[byte(x,1)]) + S4[byte(x,0)]
+#else
+#define F(x) ((key->blowfish.S[0][byte(x,3)] + key->blowfish.S[1][byte(x,2)]) ^ key->blowfish.S[2][byte(x,1)]) + key->blowfish.S[3][byte(x,0)]
+#endif
 
 #ifdef CLEAN_STACK
 static void _blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key)
@@ -360,16 +374,20 @@ void blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_
 {
    ulong32 L, R;
    int r;
+#ifndef __GNUC__
    ulong32 *S1, *S2, *S3, *S4;
+#endif
 
     _ARGCHK(pt != NULL);
     _ARGCHK(ct != NULL);
     _ARGCHK(key != NULL);
 
+#ifndef __GNUC__
     S1 = key->blowfish.S[0];
     S2 = key->blowfish.S[1];
     S3 = key->blowfish.S[2];
     S4 = key->blowfish.S[3];
+#endif
 
    /* load it */
    LOAD32H(L, &pt[0]);
@@ -408,16 +426,20 @@ void blowfish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_
 {
    ulong32 L, R;
    int r;
+#ifndef __GNUC__
    ulong32 *S1, *S2, *S3, *S4;
+#endif
 
     _ARGCHK(pt != NULL);
     _ARGCHK(ct != NULL);
     _ARGCHK(key != NULL);
 
+#ifndef __GNUC__
     S1 = key->blowfish.S[0];
     S2 = key->blowfish.S[1];
     S3 = key->blowfish.S[2];
     S4 = key->blowfish.S[3];
+#endif
 
    /* load it */
    LOAD32H(R, &ct[0]);

cast5.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 /* Implementation of CAST5 (RFC 2144) by Tom St Denis */
 #include "mycrypt.h"
 

cbc.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 #include "mycrypt.h"
 
 #ifdef CBC

cfb.c

@@ -1,3 +1,13 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * gurantee it works.
+ *
+ * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
+ */
 #include "mycrypt.h"
 
 #ifdef CFB

changes

@@ -1,3 +1,22 @@
+Jan 25th, 2004
+v0.93  -- [note: deleted v0.93 changes by accident... recreating from memory...]
+       -- Fix to RC2 to not deference pointer before ARGCHK
+       -- Fix to NOEKEON to match published test vectors as well as cleaned up the code a bit
+       -- Optimized Twofish [down to 28 cycles/byte on my box] and Blowfish
+       -- Fix to OMAC to test cipher block size first [prevents wasting any time]
+       -- Added more OMAC test vectors
+       -- Added EAX Encrypt+Authenticate support
+       -- Fix to DSA to check return of a few LTM functions I forgot [mp_to_unsigned_bin]
+       -- Added common headers to all C files
+       -- CTR mode supports big and little [default] endian counters now.  
+       -- fix to find_cipher_any() so that it can handle a fragmented cipher_descriptor table.
+       -- added find_hash_any() akin to find_cipher_any().
+       -- Added EAX code to demos/tv_gen.c  Hazaa! 
+       -- Removed SONY defines and files from codebase.
+       -- Added OCB support [patents be damned] and to demos/tv_gen.c
+       -- Merge all of the INPUT/OUTPUT BIGNUM macros (less toc) into mycrypt_pk.h
+       -- Made appropriate changes to the debug string in crypt.c
+
 Dec 24th, 2003
 v0.92  -- Updated the config.pl script so the options have more details.
        -- Updated demos/tv_gen to include RIPEMD hashes

config.pl

@@ -62,6 +62,8 @@
    "RIPEMD160,Include RIPEMD-160 one-way hash,y",
    "HMAC,Include Hash based Message Authentication Support,y",
    "OMAC,Include OMAC1 Message Authentication Support,y",
+   "EAX_MODE,Include EAX Encrypt-and-Authenticate Support,y",
+   "OCB_MODE,Include OCB Encrypt-and-Authenticate Support,y",
 
    "BASE64,Include Base64 encoding support,y",
 
@@ -151,7 +153,7 @@
 
 # output objects
 print OUT "\ndefault: library\n\n";
-print OUT "OBJECTS = keyring.o gf.o mem.o sprng.o ecc.o base64.o dh.o rsa.o bits.o yarrow.o cfb.o ofb.o ecb.o ctr.o cbc.o hash.o tiger.o sha1.o md5.o md4.o md2.o sha256.o sha512.o xtea.o aes.o des.o safer_tab.o safer.o safer+.o rc4.o rc2.o rc6.o rc5.o cast5.o noekeon.o blowfish.o crypt.o mpi.o prime.o twofish.o packet.o hmac.o strings.o rmd128.o rmd160.o skipjack.o omac.o dsa.o\n\n";
+print OUT "OBJECTS = keyring.o gf.o mem.o sprng.o ecc.o base64.o dh.o rsa.o bits.o yarrow.o cfb.o ofb.o ecb.o ctr.o cbc.o hash.o tiger.o sha1.o md5.o md4.o md2.o sha256.o sha512.o xtea.o aes.o des.o safer_tab.o safer.o safer+.o rc4.o rc2.o rc6.o rc5.o cast5.o noekeon.o blowfish.o crypt.o mpi.o prime.o twofish.o packet.o hmac.o strings.o rmd128.o rmd160.o skipjack.o omac.o dsa.o eax.o ocb.o \n\n";
 
 # some depends
 print OUT "rsa.o: rsa_sys.c\ndh.o: dh_sys.c\necc.o: ecc_sys.c\naes.o: aes.c aes_tab.c\ntwofish.o: twofish.c twofish_tab.c\nsha512.o: sha384.c sha512.c\nsha256.o: sha256.c sha224.c\n\n";