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Diffstat (limited to 'crypto/tomcrypt_cipher.h')
| -rw-r--r-- | crypto/tomcrypt_cipher.h | 892 |
1 files changed, 892 insertions, 0 deletions
diff --git a/crypto/tomcrypt_cipher.h b/crypto/tomcrypt_cipher.h new file mode 100644 index 0000000..dab5685 --- /dev/null +++ b/crypto/tomcrypt_cipher.h @@ -0,0 +1,892 @@ +/* ---- 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 LTC_BLOWFISH +struct blowfish_key { + ulong32 S[4][256]; + ulong32 K[18]; +}; +#endif + +#ifdef LTC_RC5 +struct rc5_key { + int rounds; + ulong32 K[50]; +}; +#endif + +#ifdef LTC_RC6 +struct rc6_key { + ulong32 K[44]; +}; +#endif + +#ifdef LTC_SAFERP +struct saferp_key { + unsigned char K[33][16]; + long rounds; +}; +#endif + +#ifdef LTC_RIJNDAEL +struct rijndael_key { + ulong32 eK[60], dK[60]; + int Nr; +}; +#endif + +#ifdef LTC_KSEED +struct kseed_key { + ulong32 K[32], dK[32]; +}; +#endif + +#ifdef LTC_KASUMI +struct kasumi_key { + ulong32 KLi1[8], KLi2[8], + KOi1[8], KOi2[8], KOi3[8], + KIi1[8], KIi2[8], KIi3[8]; +}; +#endif + +#ifdef LTC_XTEA +struct xtea_key { + unsigned long A[32], B[32]; +}; +#endif + +#ifdef LTC_TWOFISH +#ifndef LTC_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 LTC_SAFER +#define LTC_SAFER_K64_DEFAULT_NOF_ROUNDS 6 +#define LTC_SAFER_K128_DEFAULT_NOF_ROUNDS 10 +#define LTC_SAFER_SK64_DEFAULT_NOF_ROUNDS 8 +#define LTC_SAFER_SK128_DEFAULT_NOF_ROUNDS 10 +#define LTC_SAFER_MAX_NOF_ROUNDS 13 +#define LTC_SAFER_BLOCK_LEN 8 +#define LTC_SAFER_KEY_LEN (1 + LTC_SAFER_BLOCK_LEN * (1 + 2 * LTC_SAFER_MAX_NOF_ROUNDS)) +typedef unsigned char safer_block_t[LTC_SAFER_BLOCK_LEN]; +typedef unsigned char safer_key_t[LTC_SAFER_KEY_LEN]; +struct safer_key { safer_key_t key; }; +#endif + +#ifdef LTC_RC2 +struct rc2_key { unsigned xkey[64]; }; +#endif + +#ifdef LTC_DES +struct des_key { + ulong32 ek[32], dk[32]; +}; + +struct des3_key { + ulong32 ek[3][32], dk[3][32]; +}; +#endif + +#ifdef LTC_CAST5 +struct cast5_key { + ulong32 K[32], keylen; +}; +#endif + +#ifdef LTC_NOEKEON +struct noekeon_key { + ulong32 K[4], dK[4]; +}; +#endif + +#ifdef LTC_SKIPJACK +struct skipjack_key { + unsigned char key[10]; +}; +#endif + +#ifdef LTC_KHAZAD +struct khazad_key { + ulong64 roundKeyEnc[8 + 1]; + ulong64 roundKeyDec[8 + 1]; +}; +#endif + +#ifdef LTC_ANUBIS +struct anubis_key { + int keyBits; + int R; + ulong32 roundKeyEnc[18 + 1][4]; + ulong32 roundKeyDec[18 + 1][4]; +}; +#endif + +#ifdef LTC_MULTI2 +struct multi2_key { + int N; + ulong32 uk[8]; +}; +#endif + +typedef union Symmetric_key { +#ifdef LTC_DES + struct des_key des; + struct des3_key des3; +#endif +#ifdef LTC_RC2 + aa + struct rc2_key rc2; +#endif +#ifdef LTC_SAFER + struct safer_key safer; +#endif +#ifdef LTC_TWOFISH + struct twofish_key twofish; +#endif +#ifdef LTC_BLOWFISH + struct blowfish_key blowfish; +#endif +#ifdef LTC_RC5 + struct rc5_key rc5; +#endif +#ifdef LTC_RC6 + struct rc6_key rc6; +#endif +#ifdef LTC_SAFERP + struct saferp_key saferp; +#endif +#ifdef LTC_RIJNDAEL + struct rijndael_key rijndael; +#endif +#ifdef LTC_XTEA + struct xtea_key xtea; +#endif +#ifdef LTC_CAST5 + struct cast5_key cast5; +#endif +#ifdef LTC_NOEKEON + struct noekeon_key noekeon; +#endif +#ifdef LTC_SKIPJACK + struct skipjack_key skipjack; +#endif +#ifdef LTC_KHAZAD + struct khazad_key khazad; +#endif +#ifdef LTC_ANUBIS + struct anubis_key anubis; +#endif +#ifdef LTC_KSEED + struct kseed_key kseed; +#endif +#ifdef LTC_KASUMI + struct kasumi_key kasumi; +#endif +#ifdef LTC_MULTI2 + struct multi2_key multi2; +#endif + void *data; +} symmetric_key; + +#ifdef LTC_ECB_MODE +/** 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; +#endif + +#ifdef LTC_CFB_MODE +/** 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; +#endif + +#ifdef LTC_OFB_MODE +/** 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; +#endif + +#ifdef LTC_CBC_MODE +/** 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; +#endif + + +#ifdef LTC_CTR_MODE +/** 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, + /** counter width */ + ctrlen; + + /** The counter */ + unsigned char ctr[MAXBLOCKSIZE], + /** The pad used to encrypt/decrypt */ + pad[MAXBLOCKSIZE]; + /** The scheduled key */ + symmetric_key key; +} symmetric_CTR; +#endif + + +#ifdef LTC_LRW_MODE +/** A LRW structure */ +typedef struct { + /** The index of the cipher chosen (must be a 128-bit block cipher) */ + int cipher; + + /** The current IV */ + unsigned char IV[16], + + /** the tweak key */ + tweak[16], + + /** The current pad, it's the product of the first 15 bytes against the tweak key */ + pad[16]; + + /** The scheduled symmetric key */ + symmetric_key key; + +#ifdef LRW_TABLES + /** The pre-computed multiplication table */ + unsigned char PC[16][256][16]; +#endif +} symmetric_LRW; +#endif + +#ifdef LTC_F8_MODE +/** A block cipher F8 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], + MIV[MAXBLOCKSIZE]; + /** Current block count */ + ulong32 blockcnt; + /** The scheduled key */ + symmetric_key key; +} symmetric_F8; +#endif + + +/** 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 + @return CRYPT_OK if successful + */ + int (*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 + @return CRYPT_OK if successful + */ + int (*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 + @return CRYPT_OK if successful + */ + int (*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 + @return CRYPT_OK if successful + */ + int (*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 + @return CRYPT_OK if successful + */ + int (*accel_cbc_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, symmetric_key *skey); + + /** Accelerated CBC decryption + @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 + @return CRYPT_OK if successful + */ + int (*accel_cbc_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, symmetric_key *skey); + + /** Accelerated CTR encryption + @param pt Plaintext + @param ct Ciphertext + @param blocks The number of complete blocks to process + @param IV The initial value (input/output) + @param mode little or big endian counter (mode=0 or mode=1) + @param skey The scheduled key context + @return CRYPT_OK if successful + */ + int (*accel_ctr_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, int mode, symmetric_key *skey); + + /** Accelerated LRW + @param pt Plaintext + @param ct Ciphertext + @param blocks The number of complete blocks to process + @param IV The initial value (input/output) + @param tweak The LRW tweak + @param skey The scheduled key context + @return CRYPT_OK if successful + */ + int (*accel_lrw_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey); + + /** Accelerated LRW + @param ct Ciphertext + @param pt Plaintext + @param blocks The number of complete blocks to process + @param IV The initial value (input/output) + @param tweak The LRW tweak + @param skey The scheduled key context + @return CRYPT_OK if successful + */ + int (*accel_lrw_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey); + + /** Accelerated CCM packet (one-shot) + @param key The secret key to use + @param keylen The length of the secret key (octets) + @param uskey A previously scheduled key [optional can be NULL] + @param nonce The session nonce [use once] + @param noncelen The length of the nonce + @param header The header for the session + @param headerlen The length of the header (octets) + @param pt [out] The plaintext + @param ptlen The length of the plaintext (octets) + @param ct [out] The ciphertext + @param tag [out] The destination tag + @param taglen [in/out] The max size and resulting size of the authentication tag + @param direction Encrypt or Decrypt direction (0 or 1) + @return CRYPT_OK if successful + */ + int (*accel_ccm_memory)( + const unsigned char *key, unsigned long keylen, + symmetric_key *uskey, + const unsigned char *nonce, unsigned long noncelen, + const unsigned char *header, unsigned long headerlen, + unsigned char *pt, unsigned long ptlen, + unsigned char *ct, + unsigned char *tag, unsigned long *taglen, + int direction); + + /** Accelerated GCM packet (one shot) + @param key The secret key + @param keylen The length of the secret key + @param IV The initial vector + @param IVlen The length of the initial vector + @param adata The additional authentication data (header) + @param adatalen The length of the adata + @param pt The plaintext + @param ptlen The length of the plaintext (ciphertext length is the same) + @param ct The ciphertext + @param tag [out] The MAC tag + @param taglen [in/out] The MAC tag length + @param direction Encrypt or Decrypt mode (GCM_ENCRYPT or GCM_DECRYPT) + @return CRYPT_OK on success + */ + int (*accel_gcm_memory)( + const unsigned char *key, unsigned long keylen, + const unsigned char *IV, unsigned long IVlen, + const unsigned char *adata, unsigned long adatalen, + unsigned char *pt, unsigned long ptlen, + unsigned char *ct, + unsigned char *tag, unsigned long *taglen, + int direction); + + /** Accelerated one shot LTC_OMAC + @param key The secret key + @param keylen The key length (octets) + @param in The message + @param inlen Length of message (octets) + @param out [out] Destination for tag + @param outlen [in/out] Initial and final size of out + @return CRYPT_OK on success + */ + int (*omac_memory)( + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen); + + /** Accelerated one shot XCBC + @param key The secret key + @param keylen The key length (octets) + @param in The message + @param inlen Length of message (octets) + @param out [out] Destination for tag + @param outlen [in/out] Initial and final size of out + @return CRYPT_OK on success + */ + int (*xcbc_memory)( + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen); + + /** Accelerated one shot F9 + @param key The secret key + @param keylen The key length (octets) + @param in The message + @param inlen Length of message (octets) + @param out [out] Destination for tag + @param outlen [in/out] Initial and final size of out + @return CRYPT_OK on success + @remark Requires manual padding + */ + int (*f9_memory)( + const unsigned char *key, unsigned long keylen, + const unsigned char *in, unsigned long inlen, + unsigned char *out, unsigned long *outlen); +} cipher_descriptor[]; + +#ifdef LTC_BLOWFISH +int blowfish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int blowfish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int blowfish_test(void); +void blowfish_done(symmetric_key *skey); +int blowfish_keysize(int *keysize); +extern const struct ltc_cipher_descriptor blowfish_desc; +#endif + +#ifdef LTC_RC5 +int rc5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int rc5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int rc5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int rc5_test(void); +void rc5_done(symmetric_key *skey); +int rc5_keysize(int *keysize); +extern const struct ltc_cipher_descriptor rc5_desc; +#endif + +#ifdef LTC_RC6 +int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int rc6_test(void); +void rc6_done(symmetric_key *skey); +int rc6_keysize(int *keysize); +extern const struct ltc_cipher_descriptor rc6_desc; +#endif + +#ifdef LTC_RC2 +int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int rc2_test(void); +void rc2_done(symmetric_key *skey); +int rc2_keysize(int *keysize); +extern const struct ltc_cipher_descriptor rc2_desc; +#endif + +#ifdef LTC_SAFERP +int saferp_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int saferp_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int saferp_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int saferp_test(void); +void saferp_done(symmetric_key *skey); +int saferp_keysize(int *keysize); +extern const struct ltc_cipher_descriptor saferp_desc; +#endif + +#ifdef LTC_SAFER +int safer_k64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int safer_sk64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int safer_k128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int safer_sk128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int safer_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key); +int safer_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key); +int safer_k64_test(void); +int safer_sk64_test(void); +int safer_sk128_test(void); +void safer_done(symmetric_key *skey); +int safer_64_keysize(int *keysize); +int safer_128_keysize(int *keysize); +extern const struct ltc_cipher_descriptor safer_k64_desc, safer_k128_desc, safer_sk64_desc, safer_sk128_desc; +#endif + +#ifdef LTC_RIJNDAEL + +/* make aes an alias */ +#define aes_setup rijndael_setup +#define aes_ecb_encrypt rijndael_ecb_encrypt +#define aes_ecb_decrypt rijndael_ecb_decrypt +#define aes_test rijndael_test +#define aes_done rijndael_done +#define aes_keysize rijndael_keysize + +#define aes_enc_setup rijndael_enc_setup +#define aes_enc_ecb_encrypt rijndael_enc_ecb_encrypt +#define aes_enc_keysize rijndael_enc_keysize + +int rijndael_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int rijndael_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int rijndael_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int rijndael_test(void); +void rijndael_done(symmetric_key *skey); +int rijndael_keysize(int *keysize); +int rijndael_enc_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int rijndael_enc_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +void rijndael_enc_done(symmetric_key *skey); +int rijndael_enc_keysize(int *keysize); +extern const struct ltc_cipher_descriptor rijndael_desc, aes_desc; +extern const struct ltc_cipher_descriptor rijndael_enc_desc, aes_enc_desc; +#endif + +#ifdef LTC_XTEA +int xtea_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int xtea_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int xtea_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int xtea_test(void); +void xtea_done(symmetric_key *skey); +int xtea_keysize(int *keysize); +extern const struct ltc_cipher_descriptor xtea_desc; +#endif + +#ifdef LTC_TWOFISH +int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int twofish_test(void); +void twofish_done(symmetric_key *skey); +int twofish_keysize(int *keysize); +extern const struct ltc_cipher_descriptor twofish_desc; +#endif + +#ifdef LTC_DES +int des_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int des_test(void); +void des_done(symmetric_key *skey); +int des_keysize(int *keysize); +int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int des3_test(void); +void des3_done(symmetric_key *skey); +int des3_keysize(int *keysize); +extern const struct ltc_cipher_descriptor des_desc, des3_desc; +#endif + +#ifdef LTC_CAST5 +int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int cast5_test(void); +void cast5_done(symmetric_key *skey); +int cast5_keysize(int *keysize); +extern const struct ltc_cipher_descriptor cast5_desc; +#endif + +#ifdef LTC_NOEKEON +int noekeon_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int noekeon_test(void); +void noekeon_done(symmetric_key *skey); +int noekeon_keysize(int *keysize); +extern const struct ltc_cipher_descriptor noekeon_desc; +#endif + +#ifdef LTC_SKIPJACK +int skipjack_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int skipjack_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int skipjack_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int skipjack_test(void); +void skipjack_done(symmetric_key *skey); +int skipjack_keysize(int *keysize); +extern const struct ltc_cipher_descriptor skipjack_desc; +#endif + +#ifdef LTC_KHAZAD +int khazad_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int khazad_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int khazad_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int khazad_test(void); +void khazad_done(symmetric_key *skey); +int khazad_keysize(int *keysize); +extern const struct ltc_cipher_descriptor khazad_desc; +#endif + +#ifdef LTC_ANUBIS +int anubis_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int anubis_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int anubis_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int anubis_test(void); +void anubis_done(symmetric_key *skey); +int anubis_keysize(int *keysize); +extern const struct ltc_cipher_descriptor anubis_desc; +#endif + +#ifdef LTC_KSEED +int kseed_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int kseed_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int kseed_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int kseed_test(void); +void kseed_done(symmetric_key *skey); +int kseed_keysize(int *keysize); +extern const struct ltc_cipher_descriptor kseed_desc; +#endif + +#ifdef LTC_KASUMI +int kasumi_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int kasumi_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int kasumi_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int kasumi_test(void); +void kasumi_done(symmetric_key *skey); +int kasumi_keysize(int *keysize); +extern const struct ltc_cipher_descriptor kasumi_desc; +#endif + + +#ifdef LTC_MULTI2 +int multi2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); +int multi2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); +int multi2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); +int multi2_test(void); +void multi2_done(symmetric_key *skey); +int multi2_keysize(int *keysize); +extern const struct ltc_cipher_descriptor multi2_desc; +#endif + +#ifdef LTC_ECB_MODE +int ecb_start(int cipher, const unsigned char *key, + int keylen, int num_rounds, symmetric_ECB *ecb); +int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb); +int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb); +int ecb_done(symmetric_ECB *ecb); +#endif + +#ifdef LTC_CFB_MODE +int cfb_start(int cipher, const unsigned char *IV, const unsigned char *key, + int keylen, int num_rounds, symmetric_CFB *cfb); +int cfb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CFB *cfb); +int cfb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CFB *cfb); +int cfb_getiv(unsigned char *IV, unsigned long *len, symmetric_CFB *cfb); +int cfb_setiv(const unsigned char *IV, unsigned long len, symmetric_CFB *cfb); +int cfb_done(symmetric_CFB *cfb); +#endif + +#ifdef LTC_OFB_MODE +int ofb_start(int cipher, const unsigned char *IV, const unsigned char *key, + int keylen, int num_rounds, symmetric_OFB *ofb); +int ofb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_OFB *ofb); +int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb); +int ofb_getiv(unsigned char *IV, unsigned long *len, symmetric_OFB *ofb); +int ofb_setiv(const unsigned char *IV, unsigned long len, symmetric_OFB *ofb); +int ofb_done(symmetric_OFB *ofb); +#endif + +#ifdef LTC_CBC_MODE +int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key, + int keylen, int num_rounds, symmetric_CBC *cbc); +int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CBC *cbc); +int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CBC *cbc); +int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc); +int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc); +int cbc_done(symmetric_CBC *cbc); +#endif + +#ifdef LTC_CTR_MODE + +#define CTR_COUNTER_LITTLE_ENDIAN 0x0000 +#define CTR_COUNTER_BIG_ENDIAN 0x1000 +#define LTC_CTR_RFC3686 0x2000 + +int ctr_start( int cipher, + const unsigned char *IV, + const unsigned char *key, int keylen, + int num_rounds, int ctr_mode, + symmetric_CTR *ctr); +int ctr_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CTR *ctr); +int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr); +int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr); +int ctr_setiv(const unsigned char *IV, unsigned long len, symmetric_CTR *ctr); +int ctr_done(symmetric_CTR *ctr); +int ctr_test(void); +#endif + +#ifdef LTC_LRW_MODE + +#define LRW_ENCRYPT 0 +#define LRW_DECRYPT 1 + +int lrw_start( int cipher, + const unsigned char *IV, + const unsigned char *key, int keylen, + const unsigned char *tweak, + int num_rounds, + symmetric_LRW *lrw); +int lrw_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_LRW *lrw); +int lrw_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_LRW *lrw); +int lrw_getiv(unsigned char *IV, unsigned long *len, symmetric_LRW *lrw); +int lrw_setiv(const unsigned char *IV, unsigned long len, symmetric_LRW *lrw); +int lrw_done(symmetric_LRW *lrw); +int lrw_test(void); + +/* don't call */ +int lrw_process(const unsigned char *pt, unsigned char *ct, unsigned long len, int mode, symmetric_LRW *lrw); +#endif + +#ifdef LTC_F8_MODE +int f8_start( int cipher, const unsigned char *IV, + const unsigned char *key, int keylen, + const unsigned char *salt_key, int skeylen, + int num_rounds, symmetric_F8 *f8); +int f8_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_F8 *f8); +int f8_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_F8 *f8); +int f8_getiv(unsigned char *IV, unsigned long *len, symmetric_F8 *f8); +int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8); +int f8_done(symmetric_F8 *f8); +int f8_test_mode(void); +#endif + +#ifdef LTC_XTS_MODE +typedef struct { + symmetric_key key1, key2; + int cipher; +} symmetric_xts; + +int xts_start( int cipher, + const unsigned char *key1, + const unsigned char *key2, + unsigned long keylen, + int num_rounds, + symmetric_xts *xts); + +int xts_encrypt( + const unsigned char *pt, unsigned long ptlen, + unsigned char *ct, + const unsigned char *tweak, + symmetric_xts *xts); +int xts_decrypt( + const unsigned char *ct, unsigned long ptlen, + unsigned char *pt, + const unsigned char *tweak, + symmetric_xts *xts); + +void xts_done(symmetric_xts *xts); +int xts_test(void); +void xts_mult_x(unsigned char *I); +#endif + +int find_cipher(const char *name); +int find_cipher_any(const char *name, int blocklen, int keylen); +int find_cipher_id(unsigned char ID); +int register_cipher(const struct ltc_cipher_descriptor *cipher); +int unregister_cipher(const struct ltc_cipher_descriptor *cipher); +int cipher_is_valid(int idx); + +LTC_MUTEX_PROTO(ltc_cipher_mutex) + +/* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_cipher.h,v $ */ +/* $Revision: 1.54 $ */ +/* $Date: 2007/05/12 14:37:41 $ */ |