diff options
Diffstat (limited to 'ocb.h')
| -rw-r--r-- | ocb.h | 36 |
1 files changed, 22 insertions, 14 deletions
@@ -50,7 +50,8 @@ extern "C" { #define ocb_digest nettle_ocb_digest #define ocb_encrypt_message nettle_ocb_encrypt_message #define ocb_decrypt_message nettle_ocb_decrypt_message -#define ocb_aes128_set_key nettle_ocb_aes128_set_key +#define ocb_aes128_set_encrypt_key nettle_ocb_aes128_set_encrypt_key +#define ocb_aes128_set_decrypt_key nettle_ocb_aes128_set_decrypt_key #define ocb_aes128_set_nonce nettle_ocb_aes128_set_nonce #define ocb_aes128_update nettle_ocb_aes128_update #define ocb_aes128_encrypt nettle_ocb_aes128_encrypt @@ -140,45 +141,52 @@ ocb_decrypt_message (const struct ocb_key *ocb_key, size_t mlength, uint8_t *dst, const uint8_t *src); /* OCB-AES */ -struct ocb_aes128_ctx +/* This struct represents an expanded key for ocb-aes encryption. For + decryption, a separate decryption context is needed as well. */ +struct ocb_aes128_encrypt_key { - struct ocb_key key; - struct ocb_ctx ocb; + struct ocb_key ocb; struct aes128_ctx encrypt; - struct aes128_ctx decrypt; }; void -ocb_aes128_set_key (struct ocb_aes128_ctx *ctx, const uint8_t *key); +ocb_aes128_set_encrypt_key (struct ocb_aes128_encrypt_key *ocb, const uint8_t *key); void -ocb_aes128_set_nonce (struct ocb_aes128_ctx *ctx, - size_t nonce_length, const uint8_t *nonce); +ocb_aes128_set_decrypt_key (struct ocb_aes128_encrypt_key *ocb, struct aes128_ctx *decrypt, + const uint8_t *key); void -ocb_aes128_update (struct ocb_aes128_ctx *ctx, +ocb_aes128_set_nonce (struct ocb_ctx *ctx, const struct ocb_aes128_encrypt_key *key, + size_t tag_length, size_t nonce_length, const uint8_t *nonce); + +void +ocb_aes128_update (struct ocb_ctx *ctx, const struct ocb_aes128_encrypt_key *key, size_t length, const uint8_t *data); void -ocb_aes128_encrypt(struct ocb_aes128_ctx *ctx, +ocb_aes128_encrypt(struct ocb_ctx *ctx, const struct ocb_aes128_encrypt_key *key, size_t length, uint8_t *dst, const uint8_t *src); void -ocb_aes128_decrypt(struct ocb_aes128_ctx *ctx, +ocb_aes128_decrypt(struct ocb_ctx *ctx, const struct ocb_aes128_encrypt_key *key, + const struct aes128_ctx *decrypt, size_t length, uint8_t *dst, const uint8_t *src); void -ocb_aes128_digest(struct ocb_aes128_ctx *ctx, size_t length, uint8_t *digest); +ocb_aes128_digest(struct ocb_ctx *ctx, const struct ocb_aes128_encrypt_key *key, + size_t length, uint8_t *digest); void -ocb_aes128_encrypt_message (const struct aes128_ctx *cipher, +ocb_aes128_encrypt_message (const struct ocb_aes128_encrypt_key *key, size_t nlength, const uint8_t *nonce, size_t alength, const uint8_t *adata, size_t tlength, size_t clength, uint8_t *dst, const uint8_t *src); int -ocb_aes128_decrypt_message (const struct aes128_ctx *cipher, +ocb_aes128_decrypt_message (const struct ocb_aes128_encrypt_key *key, + const struct aes128_ctx *decrypt, size_t nlength, const uint8_t *nonce, size_t alength, const uint8_t *adata, size_t tlength, |