propagate from branch 'au.asn.ucc.matt.dropbear' (head 0501e6f661b5415eb76f3b312d183c3adfbfb712)

            to branch 'au.asn.ucc.matt.dropbear.cli-agent' (head 01038174ec27245b51bd43a66c01ad930880f67b)

--HG--
branch : agent-client
extra : convert_revision : 12b2f59db65e7339d340e95ac67d6d9ddb193c2b

21 files changed, 1131 insertions, 0 deletions

diff --git a/libtomcrypt/src/misc/crypt/crypt.c b/libtomcrypt/src/misc/crypt/crypt.c
new file mode 100644
index 0000000..eb75b8d
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt.c
@@ -0,0 +1,317 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt.c
+  Build strings, Tom St Denis
+*/  
+
+/*
+const char *crypt_build_settings =
+   "LibTomCrypt " SCRYPT " (Tom St Denis, tomstdenis@gmail.com)\n"
+   "LibTomCrypt is public domain software.\n"
+   "Built on " __DATE__ " at " __TIME__ "\n\n\n"
+   "Endianess: "
+#if defined(ENDIAN_NEUTRAL)
+   "neutral\n"
+#elif defined(ENDIAN_LITTLE)
+   "little"
+   #if defined(ENDIAN_32BITWORD)
+   " (32-bit words)\n"
+   #else
+   " (64-bit words)\n"
+   #endif
+#elif defined(ENDIAN_BIG)
+   "big"
+   #if defined(ENDIAN_32BITWORD)
+   " (32-bit words)\n"
+   #else
+   " (64-bit words)\n"
+   #endif
+#endif
+   "Clean stack: "
+#if defined(LTC_CLEAN_STACK)
+   "enabled\n"
+#else
+   "disabled\n"
+#endif
+   "Ciphers built-in:\n"
+#if defined(BLOWFISH)
+   "   Blowfish\n"
+#endif
+#if defined(RC2)
+   "   RC2\n"
+#endif
+#if defined(RC5)
+   "   RC5\n"
+#endif
+#if defined(RC6)
+   "   RC6\n"
+#endif
+#if defined(SAFERP)
+   "   Safer+\n"
+#endif
+#if defined(SAFER)
+   "   Safer\n"
+#endif
+#if defined(RIJNDAEL)
+   "   Rijndael\n"
+#endif
+#if defined(XTEA)
+   "   XTEA\n"
+#endif
+#if defined(TWOFISH)
+   "   Twofish "
+   #if defined(TWOFISH_SMALL) && defined(TWOFISH_TABLES) && defined(TWOFISH_ALL_TABLES)
+       "(small, tables, all_tables)\n"
+   #elif defined(TWOFISH_SMALL) && defined(TWOFISH_TABLES)
+       "(small, tables)\n"
+   #elif defined(TWOFISH_SMALL) && defined(TWOFISH_ALL_TABLES)
+       "(small, all_tables)\n"
+   #elif defined(TWOFISH_TABLES) && defined(TWOFISH_ALL_TABLES)
+       "(tables, all_tables)\n"
+   #elif defined(TWOFISH_SMALL)
+       "(small)\n"
+   #elif defined(TWOFISH_TABLES)
+       "(tables)\n"
+   #elif defined(TWOFISH_ALL_TABLES)
+       "(all_tables)\n"
+   #else
+       "\n"
+   #endif
+#endif
+#if defined(DES)
+   "   DES\n"
+#endif
+#if defined(CAST5)
+   "   CAST5\n"
+#endif
+#if defined(NOEKEON)
+   "   Noekeon\n"
+#endif
+#if defined(SKIPJACK)
+   "   Skipjack\n"
+#endif
+#if defined(KHAZAD)
+   "   Khazad\n"
+#endif
+#if defined(ANUBIS)
+   "   Anubis "
+#endif
+#if defined(ANUBIS_TWEAK)
+   " (tweaked)"
+#endif
+   "\n"
+
+    "\nHashes built-in:\n"
+#if defined(SHA512)
+   "   SHA-512\n"
+#endif
+#if defined(SHA384)
+   "   SHA-384\n"
+#endif
+#if defined(SHA256)
+   "   SHA-256\n"
+#endif
+#if defined(SHA224)
+   "   SHA-224\n"
+#endif
+#if defined(TIGER)
+   "   TIGER\n"
+#endif
+#if defined(SHA1)
+   "   SHA1\n"
+#endif
+#if defined(MD5)
+   "   MD5\n"
+#endif
+#if defined(MD4)
+   "   MD4\n"
+#endif
+#if defined(MD2)
+   "   MD2\n"
+#endif
+#if defined(RIPEMD128)
+   "   RIPEMD128\n"
+#endif
+#if defined(RIPEMD160)
+   "   RIPEMD160\n"
+#endif
+#if defined(WHIRLPOOL)
+   "   WHIRLPOOL\n"
+#endif
+#if defined(CHC_HASH)
+   "   CHC_HASH \n"
+#endif
+
+    "\nBlock Chaining Modes:\n"
+#if defined(CFB)
+    "   CFB\n"
+#endif
+#if defined(OFB)
+    "   OFB\n"
+#endif
+#if defined(ECB)
+    "   ECB\n"
+#endif
+#if defined(CBC)
+    "   CBC\n"
+#endif
+#if defined(CTR)
+    "   CTR\n"
+#endif
+
+    "\nMACs:\n"
+#if defined(HMAC)
+    "   HMAC\n"
+#endif
+#if defined(OMAC)
+    "   OMAC\n"
+#endif
+#if defined(PMAC)
+    "   PMAC\n"
+#endif
+#if defined(PELICAN)
+    "   PELICAN\n"
+#endif
+
+    "\nENC + AUTH modes:\n"
+#if defined(EAX_MODE)
+    "   EAX_MODE\n"
+#endif
+#if defined(OCB_MODE)
+    "   OCB_MODE\n"
+#endif
+#if defined(CCM_MODE)
+    "   CCM_MODE\n"
+#endif
+#if defined(GCM_MODE)
+    "   GCM_MODE "
+#endif
+#if defined(GCM_TABLES)
+    " (GCM_TABLES) "
+#endif
+   "\n"
+
+
+    "\nPRNG:\n"
+#if defined(YARROW)
+    "   Yarrow\n"
+#endif
+#if defined(SPRNG)
+    "   SPRNG\n"
+#endif
+#if defined(RC4)
+    "   RC4\n"
+#endif
+#if defined(FORTUNA)
+    "   Fortuna\n"
+#endif
+#if defined(SOBER128)
+    "   SOBER128\n"
+#endif
+
+    "\nPK Algs:\n"
+#if defined(MRSA)
+    "   RSA \n"
+#endif
+#if defined(MDH)
+    "   DH\n"
+#endif
+#if defined(MECC)
+    "   ECC\n"
+#endif
+#if defined(MDSA)
+    "   DSA\n"
+#endif
+
+    "\nCompiler:\n"
+#if defined(WIN32)
+    "   WIN32 platform detected.\n"
+#endif
+#if defined(LBL_CYGWIN__)
+    "   CYGWIN Detected.\n"
+#endif
+#if defined(LBL_DJGPP__)
+    "   DJGPP Detected.\n"
+#endif
+#if defined(_MSC_VER)
+    "   MSVC compiler detected.\n"
+#endif
+#if defined(__GNUC__)
+    "   GCC compiler detected.\n"
+#endif
+#if defined(INTEL_CC)
+    "   Intel C Compiler detected.\n"
+#endif
+#if defined(LBL_x86_64__)
+    "   x86-64 detected.\n"
+#endif
+
+    "\nVarious others: "
+#if defined(BASE64)
+    " BASE64 "
+#endif
+#if defined(MPI)
+    " MPI "
+#endif
+#if defined(TRY_UNRANDOM_FIRST)
+    " TRY_UNRANDOM_FIRST "
+#endif
+#if defined(LTC_TEST)
+    " LTC_TEST "
+#endif
+#if defined(PKCS_1)
+    " PKCS#1 "
+#endif
+#if defined(PKCS_5)
+    " PKCS#5 "
+#endif
+#if defined(LTC_SMALL_CODE)
+    " LTC_SMALL_CODE "
+#endif
+#if defined(LTC_NO_FILE)
+    " LTC_NO_FILE "
+#endif
+#if defined(LTC_DER)
+    " LTC_DER "
+#endif
+#if defined(LTC_FAST)
+    " LTC_FAST "
+#endif
+#if defined(LTC_NO_FAST)
+    " LTC_NO_FAST "
+#endif
+#if defined(LTC_NO_BSWAP)
+    " LTC_NO_BSWAP "
+#endif
+#if defined(LTC_NO_ASM)
+    " LTC_NO_ASM "
+#endif
+#if defined(LTC_NO_TEST)
+    " LTC_NO_TEST "
+#endif
+#if defined(LTC_NO_TABLES)
+    " LTC_NO_TABLES "
+#endif
+#if defined(LTC_PTHREAD)
+    " LTC_PTHREAD "
+#endif
+    "\n"
+    "\n\n\n"
+    ;
+	*/
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt.c,v $ */
+/* $Revision: 1.11 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_argchk.c b/libtomcrypt/src/misc/crypt/crypt_argchk.c
new file mode 100644
index 0000000..699c6cf
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_argchk.c
@@ -0,0 +1,30 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+#include <signal.h>
+
+/**
+  @file crypt_argchk.c
+  Perform argument checking, Tom St Denis
+*/  
+
+#if (ARGTYPE == 0)
+void crypt_argchk(char *v, char *s, int d)
+{
+ fprintf(stderr, "LTC_ARGCHK '%s' failure on line %d of file %s\n",
+         v, d, s);
+ (void)raise(SIGABRT);
+}
+#endif
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_argchk.c,v $ */
+/* $Revision: 1.3 $ */
+/* $Date: 2005/05/05 14:35:59 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_cipher_descriptor.c b/libtomcrypt/src/misc/crypt/crypt_cipher_descriptor.c
new file mode 100644
index 0000000..127e85c
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_cipher_descriptor.c
@@ -0,0 +1,27 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_cipher_descriptor.c
+  Stores the cipher descriptor table, Tom St Denis
+*/
+
+struct ltc_cipher_descriptor cipher_descriptor[TAB_SIZE] = {
+{ NULL, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+LTC_MUTEX_GLOBAL(ltc_cipher_mutex);
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_cipher_descriptor.c,v $ */
+/* $Revision: 1.8 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c b/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c
new file mode 100644
index 0000000..7830303
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c
@@ -0,0 +1,36 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_cipher_is_valid.c
+  Determine if cipher is valid, Tom St Denis
+*/
+
+/*
+   Test if a cipher index is valid
+   @param idx   The index of the cipher to search for
+   @return CRYPT_OK if valid
+*/
+int cipher_is_valid(int idx)
+{
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) {
+      LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+      return CRYPT_INVALID_CIPHER;
+   }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return CRYPT_OK;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_cipher.c b/libtomcrypt/src/misc/crypt/crypt_find_cipher.c
new file mode 100644
index 0000000..e7fba73
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_cipher.c
@@ -0,0 +1,41 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_cipher.c
+  Find a cipher in the descriptor tables, Tom St Denis
+*/
+
+/**
+   Find a registered cipher by name
+   @param name   The name of the cipher to look for
+   @return >= 0 if found, -1 if not present
+*/
+int find_cipher(const char *name)
+{
+   int x;
+   LTC_ARGCHK(name != NULL);
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (cipher_descriptor[x].name != NULL && !strcmp(cipher_descriptor[x].name, name)) {
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return x;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return -1;
+}
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_cipher.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_cipher_any.c b/libtomcrypt/src/misc/crypt/crypt_find_cipher_any.c
new file mode 100644
index 0000000..6dd0e6d
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_cipher_any.c
@@ -0,0 +1,50 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_cipher_any.c
+  Find a cipher in the descriptor tables, Tom St Denis
+*/
+
+/**
+   Find a cipher flexibly.  First by name then if not present by block and key size 
+   @param name        The name of the cipher desired
+   @param blocklen    The minimum length of the block cipher desired (octets)
+   @param keylen      The minimum length of the key size desired (octets)
+   @return >= 0 if found, -1 if not present
+*/
+int find_cipher_any(const char *name, int blocklen, int keylen)
+{
+   int x;
+
+   LTC_ARGCHK(name != NULL);
+
+   x = find_cipher(name);
+   if (x != -1) return x;
+
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (cipher_descriptor[x].name == NULL) {
+          continue;
+       }
+       if (blocklen <= (int)cipher_descriptor[x].block_length && keylen <= (int)cipher_descriptor[x].max_key_length) {
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return x;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_cipher_any.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_cipher_id.c b/libtomcrypt/src/misc/crypt/crypt_find_cipher_id.c
new file mode 100644
index 0000000..5f5f874
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_cipher_id.c
@@ -0,0 +1,40 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_cipher_id.c
+  Find cipher by ID, Tom St Denis
+*/
+
+/**
+   Find a cipher by ID number
+   @param ID    The ID (not same as index) of the cipher to find
+   @return >= 0 if found, -1 if not present
+*/
+int find_cipher_id(unsigned char ID)
+{
+   int x;
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (cipher_descriptor[x].ID == ID) {
+          x = (cipher_descriptor[x].name == NULL) ? -1 : x;
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return x;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_cipher_id.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_hash.c b/libtomcrypt/src/misc/crypt/crypt_find_hash.c
new file mode 100644
index 0000000..d02a449
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_hash.c
@@ -0,0 +1,40 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_hash.c
+  Find a hash, Tom St Denis
+*/
+
+/**
+   Find a registered hash by name
+   @param name   The name of the hash to look for
+   @return >= 0 if found, -1 if not present
+*/
+int find_hash(const char *name)
+{
+   int x;
+   LTC_ARGCHK(name != NULL);
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (hash_descriptor[x].name != NULL && strcmp(hash_descriptor[x].name, name) == 0) {
+          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+          return x;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_hash_any.c b/libtomcrypt/src/misc/crypt/crypt_find_hash_any.c
new file mode 100644
index 0000000..1172f22
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_hash_any.c
@@ -0,0 +1,49 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_hash_any.c
+  Find a hash, Tom St Denis
+*/
+
+/**
+   Find a hash flexibly.  First by name then if not present by digest size 
+   @param name        The name of the hash desired
+   @param digestlen   The minimum length of the digest size (octets)
+   @return >= 0 if found, -1 if not present
+*/int find_hash_any(const char *name, int digestlen)
+{
+   int x, y, z;
+   LTC_ARGCHK(name != NULL);
+
+   x = find_hash(name);
+   if (x != -1) return x;
+
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   y = MAXBLOCKSIZE+1;
+   z = -1;
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (hash_descriptor[x].name == NULL) {
+          continue;
+       }
+       if ((int)hash_descriptor[x].hashsize >= digestlen && (int)hash_descriptor[x].hashsize < y) {
+          z = x;
+          y = hash_descriptor[x].hashsize;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return z;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash_any.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_hash_id.c b/libtomcrypt/src/misc/crypt/crypt_find_hash_id.c
new file mode 100644
index 0000000..8cd0d38
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_hash_id.c
@@ -0,0 +1,40 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_hash_id.c
+  Find hash by ID, Tom St Denis
+*/
+
+/**
+   Find a hash by ID number
+   @param ID    The ID (not same as index) of the hash to find
+   @return >= 0 if found, -1 if not present
+*/
+int find_hash_id(unsigned char ID)
+{
+   int x;
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+      if (hash_descriptor[x].ID == ID) {
+          x = (hash_descriptor[x].name == NULL) ? -1 : x;
+          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+          return x;
+      }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash_id.c,v $ */
+/* $Revision: 1.5 $ */
+/* $Date: 2005/06/19 18:03:25 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_find_prng.c b/libtomcrypt/src/misc/crypt/crypt_find_prng.c
new file mode 100644
index 0000000..503813d
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_find_prng.c
@@ -0,0 +1,41 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_find_prng.c
+  Find a PRNG, Tom St Denis
+*/
+
+/**
+   Find a registered PRNG by name
+   @param name   The name of the PRNG to look for
+   @return >= 0 if found, -1 if not present
+*/
+int find_prng(const char *name)
+{
+   int x;
+   LTC_ARGCHK(name != NULL);
+   LTC_MUTEX_LOCK(&ltc_prng_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if ((prng_descriptor[x].name != NULL) && strcmp(prng_descriptor[x].name, name) == 0) {
+          LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+          return x;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+   return -1;
+}
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_prng.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_hash_descriptor.c b/libtomcrypt/src/misc/crypt/crypt_hash_descriptor.c
new file mode 100644
index 0000000..f8583d8
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_hash_descriptor.c
@@ -0,0 +1,27 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_hash_descriptor.c
+  Stores the hash descriptor table, Tom St Denis  
+*/
+
+struct ltc_hash_descriptor hash_descriptor[TAB_SIZE] = {
+{ NULL, 0, 0, 0, { 0 }, 0, NULL, NULL, NULL, NULL }
+};
+
+LTC_MUTEX_GLOBAL(ltc_hash_mutex);
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_hash_descriptor.c,v $ */
+/* $Revision: 1.6 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_hash_is_valid.c b/libtomcrypt/src/misc/crypt/crypt_hash_is_valid.c
new file mode 100644
index 0000000..a8130d4
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_hash_is_valid.c
@@ -0,0 +1,36 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_hash_is_valid.c
+  Determine if hash is valid, Tom St Denis
+*/  
+
+/*
+   Test if a hash index is valid
+   @param idx   The index of the hash to search for
+   @return CRYPT_OK if valid
+*/
+int hash_is_valid(int idx)
+{
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   if (idx < 0 || idx >= TAB_SIZE || hash_descriptor[idx].name == NULL) {
+      LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+      return CRYPT_INVALID_HASH;
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return CRYPT_OK;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_hash_is_valid.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_prng_descriptor.c b/libtomcrypt/src/misc/crypt/crypt_prng_descriptor.c
new file mode 100644
index 0000000..7335f5d
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_prng_descriptor.c
@@ -0,0 +1,26 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_prng_descriptor.c
+  Stores the PRNG descriptors, Tom St Denis
+*/  
+struct ltc_prng_descriptor prng_descriptor[TAB_SIZE] = {
+{ NULL, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
+};
+
+LTC_MUTEX_GLOBAL(ltc_prng_mutex);
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_prng_descriptor.c,v $ */
+/* $Revision: 1.5 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c b/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c
new file mode 100644
index 0000000..a7a7ed6
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c
@@ -0,0 +1,36 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_prng_is_valid.c
+  Determine if PRNG is valid, Tom St Denis
+*/
+
+/*
+   Test if a PRNG index is valid
+   @param idx   The index of the PRNG to search for
+   @return CRYPT_OK if valid
+*/
+int prng_is_valid(int idx)
+{
+   LTC_MUTEX_LOCK(&ltc_prng_mutex);
+   if (idx < 0 || idx >= TAB_SIZE || prng_descriptor[idx].name == NULL) {
+      LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+      return CRYPT_INVALID_PRNG;
+   }
+   LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+   return CRYPT_OK;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_register_cipher.c b/libtomcrypt/src/misc/crypt/crypt_register_cipher.c
new file mode 100644
index 0000000..c55d7c0
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_register_cipher.c
@@ -0,0 +1,54 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_register_cipher.c
+  Register a cipher, Tom St Denis
+*/
+
+/**
+   Register a cipher with the descriptor table
+   @param cipher   The cipher you wish to register
+   @return value >= 0 if successfully added (or already present), -1 if unsuccessful
+*/
+int register_cipher(const struct ltc_cipher_descriptor *cipher)
+{
+   int x;
+
+   LTC_ARGCHK(cipher != NULL);
+
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (cipher_descriptor[x].name != NULL && cipher_descriptor[x].ID == cipher->ID) {
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return x;
+       }
+   }
+
+   /* find a blank spot */
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (cipher_descriptor[x].name == NULL) {
+          XMEMCPY(&cipher_descriptor[x], cipher, sizeof(struct ltc_cipher_descriptor));
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return x;
+       }
+   }
+
+   /* no spot */
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_register_cipher.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_register_hash.c b/libtomcrypt/src/misc/crypt/crypt_register_hash.c
new file mode 100644
index 0000000..0ff521f
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_register_hash.c
@@ -0,0 +1,54 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_register_hash.c
+  Register a HASH, Tom St Denis
+*/
+
+/**
+   Register a hash with the descriptor table
+   @param hash   The hash you wish to register
+   @return value >= 0 if successfully added (or already present), -1 if unsuccessful
+*/
+int register_hash(const struct ltc_hash_descriptor *hash)
+{
+   int x;
+
+   LTC_ARGCHK(hash != NULL);
+
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (memcmp(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor)) == 0) {
+          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+          return x;
+       }
+   }
+
+   /* find a blank spot */
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (hash_descriptor[x].name == NULL) {
+          XMEMCPY(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor));
+          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+          return x;
+       }
+   }
+
+   /* no spot */
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_register_hash.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_register_prng.c b/libtomcrypt/src/misc/crypt/crypt_register_prng.c
new file mode 100644
index 0000000..5ab4a49
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_register_prng.c
@@ -0,0 +1,54 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_register_prng.c
+  Register a PRNG, Tom St Denis
+*/
+  
+/**
+   Register a PRNG with the descriptor table
+   @param prng   The PRNG you wish to register
+   @return value >= 0 if successfully added (or already present), -1 if unsuccessful
+*/
+int register_prng(const struct ltc_prng_descriptor *prng)
+{
+   int x;
+
+   LTC_ARGCHK(prng != NULL);
+
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_prng_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (memcmp(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
+          LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+          return x;
+       }
+   }
+
+   /* find a blank spot */
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (prng_descriptor[x].name == NULL) {
+          XMEMCPY(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor));
+          LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+          return x;
+       }
+   }
+
+   /* no spot */
+   LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+   return -1;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_register_prng.c,v $ */
+/* $Revision: 1.5 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_unregister_cipher.c b/libtomcrypt/src/misc/crypt/crypt_unregister_cipher.c
new file mode 100644
index 0000000..4081ca8
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_unregister_cipher.c
@@ -0,0 +1,45 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_unregister_cipher.c
+  Unregister a cipher, Tom St Denis
+*/
+
+/**
+  Unregister a cipher from the descriptor table
+  @param cipher   The cipher descriptor to remove
+  @return CRYPT_OK on success
+*/
+int unregister_cipher(const struct ltc_cipher_descriptor *cipher)
+{
+   int x;
+
+   LTC_ARGCHK(cipher != NULL);
+
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (memcmp(&cipher_descriptor[x], cipher, sizeof(struct ltc_cipher_descriptor)) == 0) {
+          cipher_descriptor[x].name = NULL;
+          cipher_descriptor[x].ID   = 255;
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+          return CRYPT_OK;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
+   return CRYPT_ERROR;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_unregister_cipher.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_unregister_hash.c b/libtomcrypt/src/misc/crypt/crypt_unregister_hash.c
new file mode 100644
index 0000000..fdd25b2
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_unregister_hash.c
@@ -0,0 +1,44 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_unregister_hash.c
+  Unregister a hash, Tom St Denis
+*/
+
+/**
+  Unregister a hash from the descriptor table
+  @param hash   The hash descriptor to remove
+  @return CRYPT_OK on success
+*/
+int unregister_hash(const struct ltc_hash_descriptor *hash)
+{
+   int x;
+
+   LTC_ARGCHK(hash != NULL);
+
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (memcmp(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor)) == 0) {
+          hash_descriptor[x].name = NULL;
+          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+          return CRYPT_OK;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return CRYPT_ERROR;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_unregister_hash.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */
diff --git a/libtomcrypt/src/misc/crypt/crypt_unregister_prng.c b/libtomcrypt/src/misc/crypt/crypt_unregister_prng.c
new file mode 100644
index 0000000..4aff6de
--- /dev/null
+++ b/libtomcrypt/src/misc/crypt/crypt_unregister_prng.c
@@ -0,0 +1,44 @@
+/* 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://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_unregister_prng.c
+  Unregister a PRNG, Tom St Denis
+*/
+
+/**
+  Unregister a PRNG from the descriptor table
+  @param prng   The PRNG descriptor to remove
+  @return CRYPT_OK on success
+*/
+int unregister_prng(const struct ltc_prng_descriptor *prng)
+{
+   int x;
+
+   LTC_ARGCHK(prng != NULL);
+ 
+   /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_prng_mutex);
+   for (x = 0; x < TAB_SIZE; x++) {
+       if (memcmp(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) != 0) {
+          prng_descriptor[x].name = NULL;
+          LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+          return CRYPT_OK;
+       }
+   }
+   LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+   return CRYPT_ERROR;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_unregister_prng.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */