--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/headers/tomcrypt_cipher.h	Fri May 06 13:23:02 2005 +0000
@@ -0,0 +1,619 @@
+/* ---- SYMMETRIC KEY STUFF -----
+ *
+ * We put each of the ciphers scheduled keys in their own structs then we put all of 
+ * the key formats in one union.  This makes the function prototypes easier to use.
+ */
+#ifdef BLOWFISH
+struct blowfish_key {
+   ulong32 S[4][256];
+   ulong32 K[18];
+};
+#endif
+
+#ifdef RC5
+struct rc5_key {
+   int rounds;
+   ulong32 K[50];
+};
+#endif
+
+#ifdef RC6
+struct rc6_key {
+   ulong32 K[44];
+};
+#endif
+
+#ifdef SAFERP
+struct saferp_key {
+   unsigned char K[33][16];
+   long rounds;
+};
+#endif
+
+#ifdef RIJNDAEL
+struct rijndael_key {
+   ulong32 eK[64], dK[64];
+   int Nr;
+};
+#endif
+
+#ifdef XTEA
+struct xtea_key {
+   unsigned long A[32], B[32];
+};
+#endif
+
+#ifdef TWOFISH
+#ifndef TWOFISH_SMALL
+   struct twofish_key {
+      ulong32 S[4][256], K[40];
+   };
+#else
+   struct twofish_key {
+      ulong32 K[40];
+      unsigned char S[32], start;
+   };
+#endif
+#endif
+
+#ifdef SAFER
+#define SAFER_K64_DEFAULT_NOF_ROUNDS     6
+#define SAFER_K128_DEFAULT_NOF_ROUNDS   10
+#define SAFER_SK64_DEFAULT_NOF_ROUNDS    8
+#define SAFER_SK128_DEFAULT_NOF_ROUNDS  10
+#define SAFER_MAX_NOF_ROUNDS            13
+#define SAFER_BLOCK_LEN                  8
+#define SAFER_KEY_LEN     (1 + SAFER_BLOCK_LEN * (1 + 2 * SAFER_MAX_NOF_ROUNDS))
+typedef unsigned char safer_block_t[SAFER_BLOCK_LEN];
+typedef unsigned char safer_key_t[SAFER_KEY_LEN];
+struct safer_key { safer_key_t key; };
+#endif
+
+#ifdef RC2
+struct rc2_key { unsigned xkey[64]; };
+#endif
+
+#ifdef DES
+struct des_key {
+    ulong32 ek[32], dk[32];
+};
+
+struct des3_key {
+    ulong32 ek[3][32], dk[3][32];
+};
+#endif
+
+#ifdef CAST5
+struct cast5_key {
+    ulong32 K[32], keylen;
+};
+#endif
+
+#ifdef NOEKEON
+struct noekeon_key {
+    ulong32 K[4], dK[4];
+};
+#endif
+
+#ifdef SKIPJACK 
+struct skipjack_key {
+    unsigned char key[10];
+};
+#endif
+
+#ifdef KHAZAD
+struct khazad_key {
+   ulong64 roundKeyEnc[8 + 1]; 
+   ulong64 roundKeyDec[8 + 1]; 
+};
+#endif
+
+#ifdef ANUBIS
+struct anubis_key { 
+   int keyBits; 
+   int R; 
+   ulong32 roundKeyEnc[18 + 1][4]; 
+   ulong32 roundKeyDec[18 + 1][4]; 
+}; 
+#endif
+
+typedef union Symmetric_key {
+#ifdef DES
+   struct des_key des;
+   struct des3_key des3;
+#endif
+#ifdef RC2
+   struct rc2_key rc2;
+#endif
+#ifdef SAFER
+   struct safer_key safer;
+#endif
+#ifdef TWOFISH
+   struct twofish_key  twofish;
+#endif
+#ifdef BLOWFISH
+   struct blowfish_key blowfish;
+#endif
+#ifdef RC5
+   struct rc5_key      rc5;
+#endif
+#ifdef RC6
+   struct rc6_key      rc6;
+#endif
+#ifdef SAFERP
+   struct saferp_key   saferp;
+#endif
+#ifdef RIJNDAEL
+   struct rijndael_key rijndael;
+#endif
+#ifdef XTEA
+   struct xtea_key     xtea;
+#endif
+#ifdef CAST5
+   struct cast5_key    cast5;
+#endif
+#ifdef NOEKEON
+   struct noekeon_key  noekeon;
+#endif   
+#ifdef SKIPJACK
+   struct skipjack_key skipjack;
+#endif
+#ifdef KHAZAD
+   struct khazad_key   khazad;
+#endif
+#ifdef ANUBIS
+   struct anubis_key   anubis;
+#endif
+   void   *data;
+} symmetric_key;
+
+/* A block cipher ECB structure */
+typedef struct {
+   /** The index of the cipher chosen */
+   int                 cipher, 
+   /** The block size of the given cipher */
+                       blocklen;
+   /** The scheduled key */                       
+   symmetric_key       key;
+} symmetric_ECB;
+
+/* A block cipher CFB structure */
+typedef struct {
+   /** The index of the cipher chosen */
+   int                 cipher, 
+   /** The block size of the given cipher */                        
+                       blocklen, 
+   /** The padding offset */
+                       padlen;
+   /** The current IV */
+   unsigned char       IV[MAXBLOCKSIZE], 
+   /** The pad used to encrypt/decrypt */ 
+                       pad[MAXBLOCKSIZE];
+   /** The scheduled key */
+   symmetric_key       key;
+} symmetric_CFB;
+
+/* A block cipher OFB structure */
+typedef struct {
+   /** The index of the cipher chosen */
+   int                 cipher, 
+   /** The block size of the given cipher */                        
+                       blocklen, 
+   /** The padding offset */
+                       padlen;
+   /** The current IV */
+   unsigned char       IV[MAXBLOCKSIZE];
+   /** The scheduled key */
+   symmetric_key       key;
+} symmetric_OFB;
+
+/* A block cipher CBC structure */
+typedef struct {
+   /** The index of the cipher chosen */
+   int                 cipher, 
+   /** The block size of the given cipher */                        
+                       blocklen;
+   /** The current IV */
+   unsigned char       IV[MAXBLOCKSIZE];
+   /** The scheduled key */
+   symmetric_key       key;
+} symmetric_CBC;
+
+/* A block cipher CTR structure */
+typedef struct {
+   /** The index of the cipher chosen */
+   int                 cipher,
+   /** The block size of the given cipher */                        
+                       blocklen, 
+   /** The padding offset */
+                       padlen, 
+   /** The mode (endianess) of the CTR, 0==little, 1==big */                       
+                       mode;
+   /** The counter */                       
+   unsigned char       ctr[MAXBLOCKSIZE], 
+   /** The pad used to encrypt/decrypt */                       
+                       pad[MAXBLOCKSIZE];
+   /** The scheduled key */
+   symmetric_key       key;
+} symmetric_CTR;
+
+/* cipher descriptor table, last entry has "name == NULL" to mark the end of table */
+extern struct ltc_cipher_descriptor {
+   /** name of cipher */
+   char *name;
+   /** internal ID */
+   unsigned char ID;
+   /** min keysize (octets) */
+   int  min_key_length, 
+   /** max keysize (octets) */
+        max_key_length, 
+   /** block size (octets) */
+        block_length, 
+   /** default number of rounds */
+        default_rounds;
+   /** Setup the cipher 
+      @param key         The input symmetric key
+      @param keylen      The length of the input key (octets)
+      @param num_rounds  The requested number of rounds (0==default)
+      @param skey        [out] The destination of the scheduled key
+      @return CRYPT_OK if successful
+   */
+   int  (*setup)(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
+   /** Encrypt a block
+      @param pt      The plaintext
+      @param ct      [out] The ciphertext
+      @param skey    The scheduled key
+   */
+   void (*ecb_encrypt)(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
+   /** Decrypt a block
+      @param ct      The ciphertext
+      @param pt      [out] The plaintext
+      @param skey    The scheduled key
+   */
+   void (*ecb_decrypt)(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
+   /** Test the block cipher
+       @return CRYPT_OK if successful, CRYPT_NOP if self-testing has been disabled
+   */
+   int (*test)(void);
+
+   /** Terminate the context 
+      @param skey    The scheduled key
+   */
+   void (*done)(symmetric_key *skey);      
+
+   /** Determine a key size
+       @param keysize    [in/out] The size of the key desired and the suggested size
+       @return CRYPT_OK if successful
+   */
+   int  (*keysize)(int *keysize);
+
+/** Accelerators **/
+   /** Accelerated ECB encryption 
+       @param pt      Plaintext
+       @param ct      Ciphertext
+       @param blocks  The number of complete blocks to process
+       @param skey    The scheduled key context
+   */
+   void (*accel_ecb_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, symmetric_key *skey);
+
+   /** Accelerated ECB decryption 
+       @param pt      Plaintext
+       @param ct      Ciphertext
+       @param blocks  The number of complete blocks to process
+       @param skey    The scheduled key context
+   */
+   void (*accel_ecb_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, symmetric_key *skey);
+
+   /** Accelerated CBC encryption 
+       @param pt      Plaintext
+       @param ct      Ciphertext
+       @param blocks  The number of complete blocks to process
+       @param IV      The initial value (input/output)
+       @param skey    The scheduled key context
+   */
+   void (*accel_cbc_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, symmetric_key *skey);
+