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mbedtls_cipher_info_t struct
Cipher information. Allows calling cipher functions in a generic way.
Syntax
typedef struct mbedtls_cipher_info_t
{
mbedtls_cipher_type_t type;
mbedtls_cipher_mode_t mode;
unsigned int key_bitlen;
const char *name;
unsigned int iv_size;
int flags;
unsigned int block_size;
const mbedtls_cipher_base_t *base;
} mbedtls_cipher_info_t;
Fields
Field
Declared as
Description
Full cipher identifier. For example, MBEDTLS_CIPHER_AES_256_CBC.
unsigned int
The cipher key length, in bits. This is the default length for variable sized ciphers. Includes parity bits for ciphers like DES.
unsigned int
IV or nonce size, in Bytes. For ciphers that accept variable IV sizes, this is the recommended size.
int
Bitflag comprised of MBEDTLS_CIPHER_VARIABLE_IV_LEN and MBEDTLS_CIPHER_VARIABLE_KEY_LEN indicating whether the cipher supports variable IV or variable key sizes, respectively.
Struct for base cipher information and functions.
Related Functions
Found 2 other functions taking a mbedtls_cipher_info_t
argument:
Function
Description
This function prepares a cipher context for use with the given cipher primitive. \warning In CBC mode, if mbedtls_cipher_set_padding_mode() is not called: - If MBEDTLS_CIPHER_PADDING_PKCS7 is enabled, the context will use PKCS7 padding. - Otherwise the context uses no padding and the input must be a whole number of blocks. \internal Currently, the function also clears the structure. In future versions, the caller will be required to call mbedtls_cipher_init() on the structure first.
This function calculates the full generic CMAC on the input buffer with the provided key. The function allocates the context, performs the calculation, and frees the context. The CMAC result is calculated as output = generic CMAC(cmac key, input buffer).