/*
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* aes_cbc.h
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*
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* Header for AES Cipher Blobk Chaining Mode.
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*
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* David A. McGrew
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* Cisco Systems, Inc.
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*
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*/
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#ifndef AES_CBC_H
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#define AES_CBC_H
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#include "aes.h"
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#include "cipher.h"
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typedef struct {
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v128_t state; /* cipher chaining state */
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v128_t previous; /* previous ciphertext block */
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aes_expanded_key_t expanded_key; /* the cipher key */
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} aes_cbc_ctx_t;
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err_status_t
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aes_cbc_set_key(aes_cbc_ctx_t *c,
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const unsigned char *key);
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err_status_t
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aes_cbc_encrypt(aes_cbc_ctx_t *c,
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unsigned char *buf,
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unsigned int *bytes_in_data);
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err_status_t
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aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key,
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int key_len, cipher_direction_t dir);
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err_status_t
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aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv);
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err_status_t
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aes_cbc_nist_encrypt(aes_cbc_ctx_t *c,
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unsigned char *data,
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unsigned int *bytes_in_data);
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err_status_t
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aes_cbc_nist_decrypt(aes_cbc_ctx_t *c,
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unsigned char *data,
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unsigned int *bytes_in_data);
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#endif /* AES_CBC_H */
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