Camellia - CBC

Camellia in CBC (Cipher Block Chaining) mode: each plaintext block is XORed with the previous ciphertext (or IV for the first block), then encrypted. Same semantics and IV rules as AES CBC—use a unique IV per encryption (e.g. new IV per packet or message).

API

noxtls_camellia_encrypt_cbc

noxtls_return_t noxtls_camellia_encrypt_cbc(const uint8_t* key, const uint8_t* data, uint32_t data_len, const uint8_t* iv, uint8_t* output, noxtls_camellia_type_t type);

Encrypts data in Camellia CBC mode. Each block is XORed with the previous ciphertext (or IV for the first block) before encryption. IV must be 16 bytes and unique per encryption.

Parameters: key — encryption key; data — plaintext; data_len — length (multiple of 16); iv — 16-byte IV (unique per encryption); output — ciphertext buffer; type — Camellia key type.

Returns: noxtls_return_t: NOXTLS_RETURN_SUCCESS on success; otherwise a specific return code.

noxtls_camellia_decrypt_cbc

noxtls_return_t noxtls_camellia_decrypt_cbc(const uint8_t* key, const uint8_t* data, uint32_t data_len, const uint8_t* iv, uint8_t* output, noxtls_camellia_type_t type);

Decrypts data in Camellia CBC mode. Use the same IV that was used for encryption.

Parameters: key — decryption key; data — ciphertext; data_len — length (multiple of 16); iv — 16-byte IV used for this ciphertext; output — plaintext buffer; type — Camellia key type.

Returns: noxtls_return_t: NOXTLS_RETURN_SUCCESS on success; otherwise a specific return code.