update to libtomcrypt 1.17 (with Dropbear changes)

libtomcrypt/notes/tech0005.txt

@@ -12,7 +12,7 @@ You can disable whole classes of algorithms on the command line with the LTC_NO_
 The following build with GCC 3.4.4 on an AMD64 box gets you AES, CTR mode, SHA-256, HMAC, Yarrow, full RSA PKCS #1, PKCS #5 and ASN.1 DER in 
 roughly 40KB of code (49KB on the ARMv4) (both excluding the math library).
-CFLAGS="-DLTC_NO_CIPHERS -DLTC_NO_HASHES -DLTC_NO_PRNGS -DLTC_NO_MACS -DLTC_NO_MODES -DLTC_NO_PK -DRIJNDAEL -DLTC_CTR_MODE -DSHA256 \
+CFLAGS="-DLTC_NO_CIPHERS -DLTC_NO_HASHES -DLTC_NO_PRNGS -DLTC_NO_MACS -DLTC_NO_MODES -DLTC_NO_PK -DLTC_RIJNDAEL -DLTC_CTR_MODE -DSHA256 \
 -DLTC_HMAC -DYARROW -DMRSA -DMPI -DTFM_DESC -DARGTYPE=3 -Os -DLTC_SMALL_CODE -fomit-frame-pointer" make IGNORE_SPEED=1
 Obviously this won't get you performance but if you need to pack a crypto lib in a device with limited means it's more than enough...

libtomcrypt/src/ciphers/aes/aes.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /* AES implementation by Tom St Denis
@@ -32,7 +32,7 @@
 #include "tomcrypt.h"
-#ifdef RIJNDAEL
+#ifdef LTC_RIJNDAEL
 #ifndef ENCRYPT_ONLY 
@@ -765,6 +765,6 @@ int ECB_KS(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/aes/aes.c,v $ */
-/* $Revision: 1.14 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/aes/aes_tab.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /* The precomputed tables for AES */
 /*
@@ -1023,6 +1023,6 @@ static const ulong32 rcon[] = {
     0x1B000000UL, 0x36000000UL, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
 };
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/aes/aes_tab.c,v $ */
-/* $Revision: 1.5 $ */
-/* $Date: 2006/04/02 13:19:09 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/anubis.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
@@ -17,7 +17,7 @@
 #include "tomcrypt.h"
-#ifdef ANUBIS
+#ifdef LTC_ANUBIS
 const struct ltc_cipher_descriptor anubis_desc = {
    "anubis",
@@ -48,7 +48,7 @@ const struct ltc_cipher_descriptor anubis_desc = {
  * (but little-endian notation would be equally suitable if consistently
  * employed).
  */
-#if defined(ANUBIS_TWEAK)
+#if defined(LTC_ANUBIS_TWEAK)
 static const ulong32 T0[256] = {
     0xba69d2bbU, 0x54a84de5U, 0x2f5ebce2U, 0x74e8cd25U,
@@ -1174,8 +1174,8 @@ int anubis_test(void)
      int keylen;
      unsigned char pt[16], ct[16], key[40];
   } tests[] = {
-#ifndef ANUBIS_TWEAK
-  /**** ORIGINAL ANUBIS ****/
+#ifndef LTC_ANUBIS_TWEAK
+  /**** ORIGINAL LTC_ANUBIS ****/
   /* 128 bit keys */
 {
    16,
@@ -1333,7 +1333,7 @@ int anubis_test(void)
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }
 }
 #else
-  /**** Tweaked ANUBIS ****/
+  /**** Tweaked LTC_ANUBIS ****/
   /* 128 bit keys */
 {
    16,
@@ -1553,6 +1553,6 @@ int anubis_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/anubis.c,v $ */
-/* $Revision: 1.15 $ */
-/* $Date: 2006/11/15 12:41:28 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/blowfish.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
   @file blowfish.c
@@ -14,7 +14,7 @@
 */
 #include "tomcrypt.h"
-#ifdef BLOWFISH
+#ifdef LTC_BLOWFISH
 const struct ltc_cipher_descriptor blowfish_desc =
 {
@@ -589,6 +589,6 @@ int blowfish_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/blowfish.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/cast5.c

@@ -6,16 +6,16 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
  
  /** 
    @file cast5.c
-   Implementation of CAST5 (RFC 2144) by Tom St Denis 
+   Implementation of LTC_CAST5 (RFC 2144) by Tom St Denis 
  */
 #include "tomcrypt.h"
-#ifdef CAST5
+#ifdef LTC_CAST5
 const struct ltc_cipher_descriptor cast5_desc = {
    "cast5",
@@ -398,7 +398,7 @@ static const ulong32 S8[256] = {
 #endif   
  /**
-    Initialize the CAST5 block cipher
+    Initialize the LTC_CAST5 block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -530,7 +530,7 @@ INLINE static ulong32 FIII(ulong32 R, ulong32 Km, ulong32 Kr)
 }
 /**
-  Encrypts a block of text with CAST5
+  Encrypts a block of text with LTC_CAST5
   @param pt The input plaintext (8 bytes)
   @param ct The output ciphertext (8 bytes)
   @param skey The key as scheduled
@@ -583,7 +583,7 @@ int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key
 #endif
 /**
-  Decrypts a block of text with CAST5
+  Decrypts a block of text with LTC_CAST5
   @param ct The input ciphertext (8 bytes)
   @param pt The output plaintext (8 bytes)
   @param skey The key as scheduled 
@@ -636,7 +636,7 @@ int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key
 #endif
 /**
-  Performs a self-test of the CAST5 block cipher
+  Performs a self-test of the LTC_CAST5 block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int cast5_test(void)
@@ -715,6 +715,6 @@ int cast5_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/cast5.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/des.c

@@ -6,16 +6,16 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 #include "tomcrypt.h"
 /** 
   @file des.c
-  DES code submitted by Dobes Vandermeer 
+  LTC_DES code submitted by Dobes Vandermeer 
 */
-#ifdef DES
+#ifdef LTC_DES
 #define EN0 0 
 #define DE1 1
@@ -1522,7 +1522,7 @@ static void desfunc(ulong32 *block, const ulong32 *keys)
 #if 0
  /**
-    Initialize the DES block cipher
+    Initialize the LTC_DES block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -1550,7 +1550,7 @@ int des_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
 #endif
  /**
-    Initialize the 3DES-EDE block cipher
+    Initialize the 3LTC_DES-EDE block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -1583,7 +1583,7 @@ int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_k
 #if 0
 /**
-  Encrypts a block of text with DES
+  Encrypts a block of text with LTC_DES
   @param pt The input plaintext (8 bytes)
   @param ct The output ciphertext (8 bytes)
   @param skey The key as scheduled
@@ -1604,7 +1604,7 @@ int des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *s
 }
 /**
-  Decrypts a block of text with DES
+  Decrypts a block of text with LTC_DES
   @param ct The input ciphertext (8 bytes)
   @param pt The output plaintext (8 bytes)
   @param skey The key as scheduled 
@@ -1626,7 +1626,7 @@ int des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *s
 #endif
 /**
-  Encrypts a block of text with 3DES-EDE
+  Encrypts a block of text with 3LTC_DES-EDE
   @param pt The input plaintext (8 bytes)
   @param ct The output ciphertext (8 bytes)
   @param skey The key as scheduled
@@ -1650,7 +1650,7 @@ int des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *
 }
 /**
-  Decrypts a block of text with 3DES-EDE
+  Decrypts a block of text with 3LTC_DES-EDE
   @param ct The input ciphertext (8 bytes)
   @param pt The output plaintext (8 bytes)
   @param skey The key as scheduled 
@@ -1674,7 +1674,7 @@ int des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *
 #if 0
 /**
-  Performs a self-test of the DES block cipher
+  Performs a self-test of the LTC_DES block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int des_test(void)
@@ -1910,6 +1910,6 @@ int des3_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/des.c,v $ */
-/* $Revision: 1.13 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/kasumi.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
@@ -313,6 +313,6 @@ int kasumi_test(void)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/kasumi.c,v $ */
-/* $Revision: 1.7 $ */
-/* $Date: 2006/11/09 03:05:44 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/khazad.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 #include "tomcrypt.h"
@@ -16,7 +16,7 @@
   Authors: Paulo S.L.M. Barreto and Vincent Rijmen.
 */
-#ifdef KHAZAD
+#ifdef LTC_KHAZAD
 const struct ltc_cipher_descriptor khazad_desc = {
    "khazad",
@@ -850,6 +850,6 @@ int khazad_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/khazad.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/kseed.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
@@ -17,7 +17,7 @@
 #include "tomcrypt.h"
-#ifdef KSEED
+#ifdef LTC_KSEED
 const struct ltc_cipher_descriptor kseed_desc = {
    "seed",
@@ -371,6 +371,6 @@ int kseed_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/kseed.c,v $ */
-/* $Revision: 1.8 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/multi2.c

+/* 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
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+
+/**
+  @file multi2.c
+  Multi-2 implementation (not public domain, hence the default disable)
+*/
+#include "tomcrypt.h"
+
+#ifdef LTC_MULTI2
+
+static void pi1(ulong32 *p)
+{
+   p[1] ^= p[0];
+}
+
+static void pi2(ulong32 *p, ulong32 *k)
+{
+   ulong32 t;
+   t = (p[1] + k[0]) & 0xFFFFFFFFUL;
+   t = (ROL(t, 1) + t - 1)  & 0xFFFFFFFFUL;
+   t = (ROL(t, 4) ^ t)  & 0xFFFFFFFFUL;
+   p[0] ^= t;
+}
+
+static void pi3(ulong32 *p, ulong32 *k)
+{
+   ulong32 t;
+   t = p[0] + k[1];
+   t = (ROL(t, 2) + t + 1)  & 0xFFFFFFFFUL;
+   t = (ROL(t, 8) ^ t)  & 0xFFFFFFFFUL;
+   t = (t + k[2])  & 0xFFFFFFFFUL;
+   t = (ROL(t, 1) - t)  & 0xFFFFFFFFUL;
+   t = ROL(t, 16) ^ (p[0] | t);
+   p[1] ^= t;
+}
+
+static void pi4(ulong32 *p, ulong32 *k)
+{
+   ulong32 t;
+   t = (p[1] + k[3])  & 0xFFFFFFFFUL;
+   t = (ROL(t, 2) + t + 1)  & 0xFFFFFFFFUL;
+   p[0] ^= t;
+}
+
+static void setup(ulong32 *dk, ulong32 *k, ulong32 *uk)
+{
+   int n, t;
+   ulong32 p[2];
+
+   p[0] = dk[0]; p[1] = dk[1];
+
+   t = 4; 
+   n = 0;
+      pi1(p);
+      pi2(p, k);
+      uk[n++] = p[0];
+      pi3(p, k);
+      uk[n++] = p[1];
+      pi4(p, k);
+      uk[n++] = p[0];
+      pi1(p);
+      uk[n++] = p[1];
+      pi2(p, k+t);
+      uk[n++] = p[0];
+      pi3(p, k+t);
+      uk[n++] = p[1];
+      pi4(p, k+t);
+      uk[n++] = p[0];
+      pi1(p);
+      uk[n++] = p[1];
+}
+
+static void encrypt(ulong32 *p, int N, ulong32 *uk)
+{
+   int n, t;
+   for (t = n = 0; ; ) {
+      pi1(p); if (++n == N) break;       
+      pi2(p, uk+t); if (++n == N) break;
+      pi3(p, uk+t); if (++n == N) break;
+      pi4(p, uk+t); if (++n == N) break;
+      t ^= 4;
+   }
+} 
+
+static void decrypt(ulong32 *p, int N, ulong32 *uk)
+{
+   int n, t;
+   for (t = 4*((N&1)^1), n = N; ;  ) {
+      switch (n >= 4 ? 4 : 0) {
+         case 4: pi4(p, uk+t); --n;
+         case 3: pi3(p, uk+t); --n;
+         case 2: pi2(p, uk+t); --n;
+         case 1: pi1(p); --n; break;
+         case 0: return;
+      }
+      t ^= 4;
+   }
+} 
+
+const struct ltc_cipher_descriptor multi2_desc = {
+   "multi2",
+   22,
+   40, 40, 8, 128,
+   &multi2_setup,
+   &multi2_ecb_encrypt,
+   &multi2_ecb_decrypt,
+   &multi2_test,
+   &multi2_done,
+   &multi2_keysize,
+   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
+};
+
+int  multi2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
+{
+   ulong32 sk[8], dk[2];
+   int      x;
+
+   LTC_ARGCHK(key  != NULL);
+   LTC_ARGCHK(skey != NULL);
+
+   if (keylen != 40) return CRYPT_INVALID_KEYSIZE;
+   if (num_rounds == 0) num_rounds = 128;
+   
+   skey->multi2.N = num_rounds;
+   for (x = 0; x < 8; x++) {
+       LOAD32H(sk[x], key + x*4);
+   }
+   LOAD32H(dk[0], key + 32);
+   LOAD32H(dk[1], key + 36);
+   setup(dk, sk, skey->multi2.uk);
+
+   zeromem(sk, sizeof(sk));
+   zeromem(dk, sizeof(dk));
+   return CRYPT_OK;
+}
+
+/**
+  Encrypts a block of text with multi2
+  @param pt The input plaintext (8 bytes)
+  @param ct The output ciphertext (8 bytes)
+  @param skey The key as scheduled
+  @return CRYPT_OK if successful
+*/
+int multi2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
+{
+   ulong32 p[2];
+   LTC_ARGCHK(pt   != NULL);
+   LTC_ARGCHK(ct   != NULL);
+   LTC_ARGCHK(skey != NULL);
+   LOAD32H(p[0], pt);
+   LOAD32H(p[1], pt+4);
+   encrypt(p, skey->multi2.N, skey->multi2.uk);
+   STORE32H(p[0], ct);   
+   STORE32H(p[1], ct+4);
+   return CRYPT_OK;
+}
+
+/**
+  Decrypts a block of text with multi2
+  @param ct The input ciphertext (8 bytes)
+  @param pt The output plaintext (8 bytes)
+  @param skey The key as scheduled
+  @return CRYPT_OK if successful
+*/
+int multi2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
+{
+   ulong32 p[2];
+   LTC_ARGCHK(pt   != NULL);
+   LTC_ARGCHK(ct   != NULL);
+   LTC_ARGCHK(skey != NULL);
+   LOAD32H(p[0], ct);
+   LOAD32H(p[1], ct+4);
+   decrypt(p, skey->multi2.N, skey->multi2.uk);
+   STORE32H(p[0], pt);   
+   STORE32H(p[1], pt+4);
+   return CRYPT_OK;
+}
+
+/**
+  Performs a self-test of the multi2 block cipher
+  @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
+*/
+int multi2_test(void)
+{
+   static const struct {
+      unsigned char key[40];
+      unsigned char pt[8], ct[8];
+      int           rounds;
+   } tests[] = {
+{
+   {
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00,
+   
+      0x01, 0x23, 0x45, 0x67,
+      0x89, 0xAB, 0xCD, 0xEF
+   },
+   {
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x01,
+   },
+   {
+      0xf8, 0x94, 0x40, 0x84,
+      0x5e, 0x11, 0xcf, 0x89
+   },
+   128,
+},
+{
+   {
+      0x35, 0x91, 0x9d, 0x96,
+      0x07, 0x02, 0xe2, 0xce,
+      0x8d, 0x0b, 0x58, 0x3c,
+      0xc9, 0xc8, 0x9d, 0x59,
+      0xa2, 0xae, 0x96, 0x4e,
+      0x87, 0x82, 0x45, 0xed,
+      0x3f, 0x2e, 0x62, 0xd6,
+      0x36, 0x35, 0xd0, 0x67,
+
+      0xb1, 0x27, 0xb9, 0x06,
+      0xe7, 0x56, 0x22, 0x38,
+   },
+   { 
+      0x1f, 0xb4, 0x60, 0x60,
+      0xd0, 0xb3, 0x4f, 0xa5
+   },
+   {
+      0xca, 0x84, 0xa9, 0x34,
+      0x75, 0xc8, 0x60, 0xe5
+   },
+   216,
+}
+};
+   unsigned char buf[8];
+   symmetric_key skey;
+   int err, x;
+
+   for (x = 1; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
+      if ((err = multi2_setup(tests[x].key, 40, tests[x].rounds, &skey)) != CRYPT_OK) {
+         return err;
+      }
+      if ((err = multi2_ecb_encrypt(tests[x].pt, buf, &skey)) != CRYPT_OK) {
+         return err;
+      }
+
+      if (XMEMCMP(buf, tests[x].ct, 8)) {
+         return CRYPT_FAIL_TESTVECTOR;
+      }
+   
+      if ((err = multi2_ecb_decrypt(buf, buf, &skey)) != CRYPT_OK) {
+         return err;
+      }
+      if (XMEMCMP(buf, tests[x].pt, 8)) {
+         return CRYPT_FAIL_TESTVECTOR;
+      }
+   }
+   
+   return CRYPT_OK;
+}
+
+/** Terminate the context 
+   @param skey    The scheduled key
+*/
+void multi2_done(symmetric_key *skey)
+{
+}
+
+/**
+  Gets suitable key size
+  @param keysize [in/out] The length of the recommended key (in bytes).  This function will store the suitable size back in this variable.
+  @return CRYPT_OK if the input key size is acceptable.
+*/
+int multi2_keysize(int *keysize)
+{
+   LTC_ARGCHK(keysize != NULL);
+   if (*keysize >= 40) {
+      *keysize = 40;
+   } else {
+      return CRYPT_INVALID_KEYSIZE;
+   }
+   return CRYPT_OK;
+}
+
+#endif
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/noekeon.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
    @file noekeon.c
@@ -14,7 +14,7 @@
 */
 #include "tomcrypt.h"
-#ifdef NOEKEON
+#ifdef LTC_NOEKEON
 const struct ltc_cipher_descriptor noekeon_desc =
 {
@@ -298,6 +298,6 @@ int noekeon_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/noekeon.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/rc2.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**********************************************************************\
 * To commemorate the 1996 RSA Data Security Conference, the following  *
@@ -22,10 +22,10 @@
 /**
   @file rc2.c
-  Implementation of RC2
+  Implementation of LTC_RC2
 */  
-#ifdef RC2
+#ifdef LTC_RC2
 const struct ltc_cipher_descriptor rc2_desc = {
    "rc2",
@@ -60,7 +60,7 @@ static const unsigned char permute[256] = {
 };
  /**
-    Initialize the RC2 block cipher
+    Initialize the LTC_RC2 block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -121,7 +121,7 @@ int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
 * Encrypt an 8-byte block of plaintext using the given key.            *
 \**********************************************************************/
 /**
-  Encrypts a block of text with RC2
+  Encrypts a block of text with LTC_RC2
   @param pt The input plaintext (8 bytes)
   @param ct The output ciphertext (8 bytes)
   @param skey The key as scheduled
@@ -199,7 +199,7 @@ int rc2_ecb_encrypt( const unsigned char *pt,
 * Decrypt an 8-byte block of ciphertext using the given key.           *
 \**********************************************************************/
 /**
-  Decrypts a block of text with RC2
+  Decrypts a block of text with LTC_RC2
   @param ct The input ciphertext (8 bytes)
   @param pt The output plaintext (8 bytes)
   @param skey The key as scheduled 
@@ -275,7 +275,7 @@ int rc2_ecb_decrypt( const unsigned char *ct,
 #endif
 /**
-  Performs a self-test of the RC2 block cipher
+  Performs a self-test of the LTC_RC2 block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int rc2_test(void)
@@ -357,6 +357,6 @@ int rc2_keysize(int *keysize)
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/rc2.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/rc5.c

@@ -6,17 +6,17 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
    @file rc5.c
-   RC5 code by Tom St Denis 
+   LTC_RC5 code by Tom St Denis 
 */
 #include "tomcrypt.h"
-#ifdef RC5
+#ifdef LTC_RC5
 const struct ltc_cipher_descriptor rc5_desc =
 {
@@ -43,7 +43,7 @@ static const ulong32 stab[50] = {
 };
  /**
-    Initialize the RC5 block cipher
+    Initialize the LTC_RC5 block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -119,7 +119,7 @@ int rc5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
 #endif
 /**
-  Encrypts a block of text with RC5
+  Encrypts a block of text with LTC_RC5
   @param pt The input plaintext (8 bytes)
   @param ct The output ciphertext (8 bytes)
   @param skey The key as scheduled
@@ -174,7 +174,7 @@ int rc5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *s
 #endif
 /**
-  Decrypts a block of text with RC5
+  Decrypts a block of text with LTC_RC5
   @param ct The input ciphertext (8 bytes)
   @param pt The output plaintext (8 bytes)
   @param skey The key as scheduled 
@@ -230,7 +230,7 @@ int rc5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *s
 #endif
 /**
-  Performs a self-test of the RC5 block cipher
+  Performs a self-test of the LTC_RC5 block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int rc5_test(void)
@@ -317,6 +317,6 @@ int rc5_keysize(int *keysize)
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/rc5.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/rc6.c

@@ -6,16 +6,16 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
    @file rc6.c
-   RC6 code by Tom St Denis 
+   LTC_RC6 code by Tom St Denis 
 */
 #include "tomcrypt.h"
-#ifdef RC6
+#ifdef LTC_RC6
 const struct ltc_cipher_descriptor rc6_desc =
 {
@@ -40,7 +40,7 @@ static const ulong32 stab[44] = {
 0x708c564bUL, 0x0ec3d004UL, 0xacfb49bdUL, 0x4b32c376UL };
  /**
-    Initialize the RC6 block cipher
+    Initialize the LTC_RC6 block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -114,7 +114,7 @@ int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
 #endif
 /**
-  Encrypts a block of text with RC6
+  Encrypts a block of text with LTC_RC6
   @param pt The input plaintext (16 bytes)
   @param ct The output ciphertext (16 bytes)
   @param skey The key as scheduled
@@ -168,7 +168,7 @@ int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *s
 #endif
 /**
-  Decrypts a block of text with RC6
+  Decrypts a block of text with LTC_RC6
   @param ct The input ciphertext (16 bytes)
   @param pt The output plaintext (16 bytes)
   @param skey The key as scheduled 
@@ -224,7 +224,7 @@ int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *s
 #endif
 /**
-  Performs a self-test of the RC6 block cipher
+  Performs a self-test of the LTC_RC6 block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int rc6_test(void)
@@ -339,10 +339,10 @@ int rc6_keysize(int *keysize)
    return CRYPT_OK;
 }
-#endif /*RC6*/
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/rc6.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+#endif /*LTC_RC6*/
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/safer/safer.c

@@ -6,16 +6,16 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /*******************************************************************************
 *
 * FILE:           safer.c
 *
-* DESCRIPTION:    block-cipher algorithm SAFER (Secure And Fast Encryption
-*                 Routine) in its four versions: SAFER K-64, SAFER K-128,
-*                 SAFER SK-64 and SAFER SK-128.
+* LTC_DESCRIPTION:    block-cipher algorithm LTC_SAFER (Secure And Fast Encryption
+*                 Routine) in its four versions: LTC_SAFER K-64, LTC_SAFER K-128,
+*                 LTC_SAFER SK-64 and LTC_SAFER SK-128.
 *
 * AUTHOR:         Richard De Moliner (demoliner@isi.ee.ethz.ch)
 *                 Signal and Information Processing Laboratory
@@ -30,12 +30,12 @@
 #include <tomcrypt.h>
-#ifdef SAFER
+#ifdef LTC_SAFER
 const struct ltc_cipher_descriptor 
    safer_k64_desc = {
    "safer-k64", 
-   8, 8, 8, 8, SAFER_K64_DEFAULT_NOF_ROUNDS,
+   8, 8, 8, 8, LTC_SAFER_K64_DEFAULT_NOF_ROUNDS,
    &safer_k64_setup,
    &safer_ecb_encrypt,
    &safer_ecb_decrypt,
@@ -47,7 +47,7 @@ const struct ltc_cipher_descriptor
    safer_sk64_desc = {
    "safer-sk64",
-   9, 8, 8, 8, SAFER_SK64_DEFAULT_NOF_ROUNDS,
+   9, 8, 8, 8, LTC_SAFER_SK64_DEFAULT_NOF_ROUNDS,
    &safer_sk64_setup,
    &safer_ecb_encrypt,
    &safer_ecb_decrypt,
@@ -59,7 +59,7 @@ const struct ltc_cipher_descriptor
    safer_k128_desc = {
    "safer-k128",
-   10, 16, 16, 8, SAFER_K128_DEFAULT_NOF_ROUNDS,
+   10, 16, 16, 8, LTC_SAFER_K128_DEFAULT_NOF_ROUNDS,
    &safer_k128_setup,
    &safer_ecb_encrypt,
    &safer_ecb_decrypt,
@@ -71,7 +71,7 @@ const struct ltc_cipher_descriptor
    safer_sk128_desc = {
    "safer-sk128",
-   11, 16, 16, 8, SAFER_SK128_DEFAULT_NOF_ROUNDS,
+   11, 16, 16, 8, LTC_SAFER_SK128_DEFAULT_NOF_ROUNDS,
    &safer_sk128_setup,
    &safer_ecb_encrypt,
    &safer_ecb_decrypt,
@@ -111,48 +111,48 @@ static void Safer_Expand_Userkey(const unsigned char *userkey_1,
                                  safer_key_t key)
 #endif
 {   unsigned int i, j, k;
-    unsigned char ka[SAFER_BLOCK_LEN + 1];
-    unsigned char kb[SAFER_BLOCK_LEN + 1];
-    if (SAFER_MAX_NOF_ROUNDS < nof_rounds)
-        nof_rounds = SAFER_MAX_NOF_ROUNDS;
+    unsigned char ka[LTC_SAFER_BLOCK_LEN + 1];
+    unsigned char kb[LTC_SAFER_BLOCK_LEN + 1];
+    if (LTC_SAFER_MAX_NOF_ROUNDS < nof_rounds)
+        nof_rounds = LTC_SAFER_MAX_NOF_ROUNDS;
     *key++ = (unsigned char)nof_rounds;
-    ka[SAFER_BLOCK_LEN] = (unsigned char)0;
-    kb[SAFER_BLOCK_LEN] = (unsigned char)0;
+    ka[LTC_SAFER_BLOCK_LEN] = (unsigned char)0;
+    kb[LTC_SAFER_BLOCK_LEN] = (unsigned char)0;
     k = 0;
-    for (j = 0; j < SAFER_BLOCK_LEN; j++) {
+    for (j = 0; j < LTC_SAFER_BLOCK_LEN; j++) {
         ka[j] = ROL8(userkey_1[j], 5);
-        ka[SAFER_BLOCK_LEN] ^= ka[j];
+        ka[LTC_SAFER_BLOCK_LEN] ^= ka[j];
         kb[j] = *key++ = userkey_2[j];
-        kb[SAFER_BLOCK_LEN] ^= kb[j];
+        kb[LTC_SAFER_BLOCK_LEN] ^= kb[j];
     }
     for (i = 1; i <= nof_rounds; i++) {
-        for (j = 0; j < SAFER_BLOCK_LEN + 1; j++) {
+        for (j = 0; j < LTC_SAFER_BLOCK_LEN + 1; j++) {
             ka[j] = ROL8(ka[j], 6);
             kb[j] = ROL8(kb[j], 6);
         }
         if (strengthened) {
            k = 2 * i - 1;
-           while (k >= (SAFER_BLOCK_LEN + 1)) { k -= SAFER_BLOCK_LEN + 1; }
+           while (k >= (LTC_SAFER_BLOCK_LEN + 1)) { k -= LTC_SAFER_BLOCK_LEN + 1; }
         }
-        for (j = 0; j < SAFER_BLOCK_LEN; j++) {
+        for (j = 0; j < LTC_SAFER_BLOCK_LEN; j++) {
             if (strengthened) {
                 *key++ = (ka[k]
                                 + safer_ebox[(int)safer_ebox[(int)((18 * i + j + 1)&0xFF)]]) & 0xFF;
-                if (++k == (SAFER_BLOCK_LEN + 1)) { k = 0; }
+                if (++k == (LTC_SAFER_BLOCK_LEN + 1)) { k = 0; }
             } else {
                 *key++ = (ka[j] + safer_ebox[(int)safer_ebox[(int)((18 * i + j + 1)&0xFF)]]) & 0xFF;
             }
         }
         if (strengthened) {
            k = 2 * i;
-           while (k >= (SAFER_BLOCK_LEN + 1)) { k -= SAFER_BLOCK_LEN + 1; }
+           while (k >= (LTC_SAFER_BLOCK_LEN + 1)) { k -= LTC_SAFER_BLOCK_LEN + 1; }
         }
-        for (j = 0; j < SAFER_BLOCK_LEN; j++) {
+        for (j = 0; j < LTC_SAFER_BLOCK_LEN; j++) {
             if (strengthened) {
                 *key++ = (kb[k]
                                 + safer_ebox[(int)safer_ebox[(int)((18 * i + j + 10)&0xFF)]]) & 0xFF;
-                if (++k == (SAFER_BLOCK_LEN + 1)) { k = 0; }
+                if (++k == (LTC_SAFER_BLOCK_LEN + 1)) { k = 0; }
             } else {
                 *key++ = (kb[j] + safer_ebox[(int)safer_ebox[(int)((18 * i + j + 10)&0xFF)]]) & 0xFF;
             }
@@ -173,7 +173,7 @@ static void Safer_Expand_Userkey(const unsigned char *userkey_1,
                                  safer_key_t key)
 {
    _Safer_Expand_Userkey(userkey_1, userkey_2, nof_rounds, strengthened, key);
-   burn_stack(sizeof(unsigned char) * (2 * (SAFER_BLOCK_LEN + 1)) + sizeof(unsigned int)*2);
+   burn_stack(sizeof(unsigned char) * (2 * (LTC_SAFER_BLOCK_LEN + 1)) + sizeof(unsigned int)*2);
 }
 #endif
@@ -182,7 +182,7 @@ int safer_k64_setup(const unsigned char *key, int keylen, int numrounds, symmetr
    LTC_ARGCHK(key != NULL);
    LTC_ARGCHK(skey != NULL);
-   if (numrounds != 0 && (numrounds < 6 || numrounds > SAFER_MAX_NOF_ROUNDS)) {
+   if (numrounds != 0 && (numrounds < 6 || numrounds > LTC_SAFER_MAX_NOF_ROUNDS)) {
       return CRYPT_INVALID_ROUNDS;
    }
@@ -190,7 +190,7 @@ int safer_k64_setup(const unsigned char *key, int keylen, int numrounds, symmetr
       return CRYPT_INVALID_KEYSIZE;
    }
-   Safer_Expand_Userkey(key, key, (unsigned int)(numrounds != 0 ?numrounds:SAFER_K64_DEFAULT_NOF_ROUNDS), 0, skey->safer.key);
+   Safer_Expand_Userkey(key, key, (unsigned int)(numrounds != 0 ?numrounds:LTC_SAFER_K64_DEFAULT_NOF_ROUNDS), 0, skey->safer.key);
    return CRYPT_OK;
 }
    
@@ -199,7 +199,7 @@ int safer_sk64_setup(const unsigned char *key, int keylen, int numrounds, symmet
    LTC_ARGCHK(key != NULL);
    LTC_ARGCHK(skey != NULL);
-   if (numrounds != 0 && (numrounds < 6 || numrounds > SAFER_MAX_NOF_ROUNDS)) {
+   if (numrounds != 0 && (numrounds < 6 || numrounds > LTC_SAFER_MAX_NOF_ROUNDS)) {
       return CRYPT_INVALID_ROUNDS;
    }
@@ -207,7 +207,7 @@ int safer_sk64_setup(const unsigned char *key, int keylen, int numrounds, symmet
       return CRYPT_INVALID_KEYSIZE;
    }
-   Safer_Expand_Userkey(key, key, (unsigned int)(numrounds != 0 ?numrounds:SAFER_SK64_DEFAULT_NOF_ROUNDS), 1, skey->safer.key);
+   Safer_Expand_Userkey(key, key, (unsigned int)(numrounds != 0 ?numrounds:LTC_SAFER_SK64_DEFAULT_NOF_ROUNDS), 1, skey->safer.key);
    return CRYPT_OK;
 }
@@ -216,7 +216,7 @@ int safer_k128_setup(const unsigned char *key, int keylen, int numrounds, symmet
    LTC_ARGCHK(key != NULL);
    LTC_ARGCHK(skey != NULL);
-   if (numrounds != 0 && (numrounds < 6 || numrounds > SAFER_MAX_NOF_ROUNDS)) {
+   if (numrounds != 0 && (numrounds < 6 || numrounds > LTC_SAFER_MAX_NOF_ROUNDS)) {
       return CRYPT_INVALID_ROUNDS;
    }
@@ -224,7 +224,7 @@ int safer_k128_setup(const unsigned char *key, int keylen, int numrounds, symmet
       return CRYPT_INVALID_KEYSIZE;
    }
-   Safer_Expand_Userkey(key, key+8, (unsigned int)(numrounds != 0 ?numrounds:SAFER_K128_DEFAULT_NOF_ROUNDS), 0, skey->safer.key);
+   Safer_Expand_Userkey(key, key+8, (unsigned int)(numrounds != 0 ?numrounds:LTC_SAFER_K128_DEFAULT_NOF_ROUNDS), 0, skey->safer.key);
    return CRYPT_OK;
 }
@@ -233,7 +233,7 @@ int safer_sk128_setup(const unsigned char *key, int keylen, int numrounds, symme
    LTC_ARGCHK(key != NULL);
    LTC_ARGCHK(skey != NULL);
-   if (numrounds != 0 && (numrounds < 6 || numrounds > SAFER_MAX_NOF_ROUNDS)) {
+   if (numrounds != 0 && (numrounds < 6 || numrounds > LTC_SAFER_MAX_NOF_ROUNDS)) {
       return CRYPT_INVALID_ROUNDS;
    }
@@ -241,7 +241,7 @@ int safer_sk128_setup(const unsigned char *key, int keylen, int numrounds, symme
       return CRYPT_INVALID_KEYSIZE;
    }
-   Safer_Expand_Userkey(key, key+8, (unsigned int)(numrounds != 0?numrounds:SAFER_SK128_DEFAULT_NOF_ROUNDS), 1, skey->safer.key);
+   Safer_Expand_Userkey(key, key+8, (unsigned int)(numrounds != 0?numrounds:LTC_SAFER_SK128_DEFAULT_NOF_ROUNDS), 1, skey->safer.key);
    return CRYPT_OK;
 }
@@ -265,7 +265,7 @@ int safer_ecb_encrypt(const unsigned char *block_in,
     key = skey->safer.key;
     a = block_in[0]; b = block_in[1]; c = block_in[2]; d = block_in[3];
     e = block_in[4]; f = block_in[5]; g = block_in[6]; h = block_in[7];
-    if (SAFER_MAX_NOF_ROUNDS < (round = *key)) round = SAFER_MAX_NOF_ROUNDS;
+    if (LTC_SAFER_MAX_NOF_ROUNDS < (round = *key)) round = LTC_SAFER_MAX_NOF_ROUNDS;
     while(round-- > 0)
     {
         a ^= *++key; b += *++key; c += *++key; d ^= *++key;
@@ -319,8 +319,8 @@ int safer_ecb_decrypt(const unsigned char *block_in,
     key = skey->safer.key;
     a = block_in[0]; b = block_in[1]; c = block_in[2]; d = block_in[3];
     e = block_in[4]; f = block_in[5]; g = block_in[6]; h = block_in[7];
-    if (SAFER_MAX_NOF_ROUNDS < (round = *key)) round = SAFER_MAX_NOF_ROUNDS;
-    key += SAFER_BLOCK_LEN * (1 + 2 * round);
+    if (LTC_SAFER_MAX_NOF_ROUNDS < (round = *key)) round = LTC_SAFER_MAX_NOF_ROUNDS;
+    key += LTC_SAFER_BLOCK_LEN * (1 + 2 * round);
     h ^= *key; g -= *--key; f -= *--key; e ^= *--key;
     d ^= *--key; c -= *--key; b -= *--key; a ^= *--key;
     while (round--)
@@ -486,6 +486,6 @@ int safer_sk128_test(void)
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/safer/safer.c,v $ */
-/* $Revision: 1.13 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/safer/safer_tab.c

@@ -6,17 +6,17 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
   @file safer_tab.c
-  Tables for SAFER block ciphers
+  Tables for LTC_SAFER block ciphers
 */ 
  
 #include "tomcrypt.h"
-#if defined(SAFERP) || defined(SAFER)
+#if defined(LTC_SAFERP) || defined(LTC_SAFER)
 /* This is the box defined by ebox[x] = 45^x mod 257.  
  * Its assumed that the value "256" corresponds to zero. */
@@ -63,6 +63,6 @@ const unsigned char safer_lbox[256] = {
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/safer/safer_tab.c,v $ */
-/* $Revision: 1.4 $ */
-/* $Date: 2006/03/31 14:15:35 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/safer/saferp.c

@@ -6,16 +6,16 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /** 
    @file saferp.c
-   SAFER+ Implementation by Tom St Denis 
+   LTC_SAFER+ Implementation by Tom St Denis 
 */
 #include "tomcrypt.h"
-#ifdef SAFERP
+#ifdef LTC_SAFERP
 const struct ltc_cipher_descriptor saferp_desc =
 {
@@ -37,7 +37,7 @@ const struct ltc_cipher_descriptor saferp_desc =
  * key addition, substitution, key addition.  The safer_ebox and safer_lbox 
  * are the exponentiation box and logarithm boxes respectively.  
  * The value of 'i' is the current round number which allows this 
- * function to be unrolled massively.  Most of SAFER+'s speed 
+ * function to be unrolled massively.  Most of LTC_SAFER+'s speed 
  * comes from not having to compute indirect accesses into the 
  * array of 16 bytes b[0..15] which is the block of data
 */
@@ -206,7 +206,7 @@ static const unsigned char safer_bias[33][16] = {
 {  62, 220, 134, 119, 215, 166,  17, 251, 244, 186, 146, 145, 100, 131, 241,  51}};
  /**
-    Initialize the SAFER+ block cipher
+    Initialize the LTC_SAFER+ block cipher
     @param key The symmetric key you wish to pass
     @param keylen The key length in bytes
     @param num_rounds The number of rounds desired (0 for default)
@@ -325,7 +325,7 @@ int saferp_setup(const unsigned char *key, int keylen, int num_rounds, symmetric
 }
 /**
-  Encrypts a block of text with SAFER+
+  Encrypts a block of text with LTC_SAFER+
   @param pt The input plaintext (16 bytes)
   @param ct The output ciphertext (16 bytes)
   @param skey The key as scheduled
@@ -389,7 +389,7 @@ int saferp_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key
 }
 /**
-  Decrypts a block of text with SAFER+
+  Decrypts a block of text with LTC_SAFER+
   @param ct The input ciphertext (16 bytes)
   @param pt The output plaintext (16 bytes)
   @param skey The key as scheduled 
@@ -453,7 +453,7 @@ int saferp_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key
 }
 /**
-  Performs a self-test of the SAFER+ block cipher
+  Performs a self-test of the LTC_SAFER+ block cipher
   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 */
 int saferp_test(void)
@@ -554,6 +554,6 @@ int saferp_keysize(int *keysize)
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/safer/saferp.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/skipjack.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
 /**
@@ -15,7 +15,7 @@
 */
 #include "tomcrypt.h"
-#ifdef SKIPJACK
+#ifdef LTC_SKIPJACK
 const struct ltc_cipher_descriptor skipjack_desc =
 {
@@ -338,6 +338,6 @@ int skipjack_keysize(int *keysize)
 #endif
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/skipjack.c,v $ */
-/* $Revision: 1.12 $ */
-/* $Date: 2006/11/08 23:01:06 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

libtomcrypt/src/ciphers/twofish/twofish.c

@@ -6,7 +6,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  */
  /** 
@@ -15,12 +15,12 @@
  */
 #include "tomcrypt.h"
-#ifdef TWOFISH
-/* first TWOFISH_ALL_TABLES must ensure TWOFISH_TABLES is defined */
-#ifdef TWOFISH_ALL_TABLES
-#ifndef TWOFISH_TABLES
-#define TWOFISH_TABLES
+#ifdef LTC_TWOFISH
+/* first LTC_TWOFISH_ALL_TABLES must ensure LTC_TWOFISH_TABLES is defined */
+#ifdef LTC_TWOFISH_ALL_TABLES
+#ifndef LTC_TWOFISH_TABLES
+#define LTC_TWOFISH_TABLES
 #endif
 #endif
@@ -68,7 +68,7 @@ static const unsigned char qord[4][5] = {
    { 1, 0, 1, 1, 0 }
 };
-#ifdef TWOFISH_TABLES
+#ifdef LTC_TWOFISH_TABLES
 #include "twofish_tab.c"
@@ -142,7 +142,7 @@ static ulong32 sbox(int i, ulong32 x)
 }
 #endif /* LTC_CLEAN_STACK */
-#endif /* TWOFISH_TABLES */
+#endif /* LTC_TWOFISH_TABLES */
 /* computes ab mod p */
 static ulong32 gf_mult(ulong32 a, ulong32 b, ulong32 p)
@@ -167,7 +167,7 @@ static ulong32 gf_mult(ulong32 a, ulong32 b, ulong32 p)
 }
 /* computes [y0 y1 y2 y3] = MDS . [x0] */
-#ifndef TWOFISH_TABLES
+#ifndef LTC_TWOFISH_TABLES
 static ulong32 mds_column_mult(unsigned char in, int col)
 {
    ulong32 x01, x5B, xEF;
@@ -202,11 +202,11 @@ static ulong32 mds_column_mult(unsigned char in, int col)
    return 0;
 }
-#else /* !TWOFISH_TABLES */
+#else /* !LTC_TWOFISH_TABLES */
 #define mds_column_mult(x, i) mds_tab[i][x]
-#endif /* TWOFISH_TABLES */
+#endif /* LTC_TWOFISH_TABLES */
 /* Computes [y0 y1 y2 y3] = MDS . [x0 x1 x2 x3] */
 static void mds_mult(const unsigned char *in, unsigned char *out)
@@ -219,7 +219,7 @@ static void mds_mult(const unsigned char *in, unsigned char *out)
   STORE32L(tmp, out);
 }
-#ifdef TWOFISH_ALL_TABLES
+#ifdef LTC_TWOFISH_ALL_TABLES
 /* computes [y0 y1 y2 y3] = RS . [x0 x1 x2 x3 x4 x5 x6 x7] */
 static void rs_mult(const unsigned char *in, unsigned char *out)
 {
@@ -229,7 +229,7 @@ static void rs_mult(const unsigned char *in, unsigned char *out)
    STORE32L(tmp, out);
 }
-#else /* !TWOFISH_ALL_TABLES */
+#else /* !LTC_TWOFISH_ALL_TABLES */
 /* computes [y0 y1 y2 y3] = RS . [x0 x1 x2 x3 x4 x5 x6 x7] */
 static void rs_mult(const unsigned char *in, unsigned char *out)
@@ -273,7 +273,7 @@ static void h_func(const unsigned char *in, unsigned char *out, unsigned char *M
   mds_mult(y, out);
 }
-#ifndef TWOFISH_SMALL
+#ifndef LTC_TWOFISH_SMALL
 /* for GCC we don't use pointer aliases */
 #if defined(__GNUC__)
@@ -332,7 +332,7 @@ static ulong32 g_func(ulong32 x, symmetric_key *key)
 }
 #endif /* LTC_CLEAN_STACK */
-#endif /* TWOFISH_SMALL */
+#endif /* LTC_TWOFISH_SMALL */
  /**
     Initialize the Twofish block cipher
@@ -348,7 +348,7 @@ static int _twofish_setup(const unsigned char *key, int keylen, int num_rounds,
 int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
 #endif
 {
-#ifndef TWOFISH_SMALL
+#ifndef LTC_TWOFISH_SMALL
    unsigned char S[4*4], tmpx0, tmpx1;
 #endif
    int k, x, y;
@@ -376,7 +376,7 @@ int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetri
    }
    /* create the S[..] words */
-#ifndef TWOFISH_SMALL
+#ifndef LTC_TWOFISH_SMALL
    for (x = 0; x < k; x++) {
        rs_mult(M+(x*8), S+(x*4));
    }
@@ -410,7 +410,7 @@ int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetri
        skey->twofish.K[x+x+1] = ROLc(B + B + A, 9);
    }
-#ifndef TWOFISH_SMALL
+#ifndef LTC_TWOFISH_SMALL
    /* make the sboxes (large ram variant) */
    if (k == 2) {
         for (x = 0; x < 256; x++) {
@@ -477,7 +477,7 @@ int twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_ke
 {
     ulong32 a,b,c,d,ta,tb,tc,td,t1,t2, *k;
     int r;
-#if !defined(TWOFISH_SMALL) && !defined(__GNUC__)
+#if !defined(LTC_TWOFISH_SMALL) && !defined(__GNUC__)
     ulong32 *S1, *S2, *S3, *S4;
 #endif    
@@ -485,7 +485,7 @@ int twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_ke
     LTC_ARGCHK(ct   != NULL);
     LTC_ARGCHK(skey != NULL);
     
-#if !defined(TWOFISH_SMALL) && !defined(__GNUC__)
+#if !defined(LTC_TWOFISH_SMALL) && !defined(__GNUC__)
     S1 = skey->twofish.S[0];
     S2 = skey->twofish.S[1];
     S3 = skey->twofish.S[2];
@@ -550,7 +550,7 @@ int twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_ke
 {
     ulong32 a,b,c,d,ta,tb,tc,td,t1,t2, *k;
     int r;
-#if !defined(TWOFISH_SMALL) && !defined(__GNUC__)
+#if !defined(LTC_TWOFISH_SMALL) && !defined(__GNUC__)
     ulong32 *S1, *S2, *S3, *S4;
 #endif    
@@ -558,7 +558,7 @@ int twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_ke
     LTC_ARGCHK(ct   != NULL);
     LTC_ARGCHK(skey != NULL);
     
-#if !defined(TWOFISH_SMALL) && !defined(__GNUC__)
+#if !defined(LTC_TWOFISH_SMALL) && !defined(__GNUC__)
     S1 = skey->twofish.S[0];
     S2 = skey->twofish.S[1];
     S3 = skey->twofish.S[2];
@@ -714,6 +714,6 @@ int twofish_keysize(int *keysize)
-/* $Source: /cvs/libtom/libtomcrypt/src/ciphers/twofish/twofish.c,v $ */
-/* $Revision: 1.14 $ */
-/* $Date: 2006/12/04 21:34:03 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */