keyring_common::aes_encryption Namespace Reference

Classes
class	Aes_operation_context

Typedefs
using	block_mode_key = std::pair< std::string, size_t >
using	Known_block_mode_map = std::map< block_mode_key, Keyring_aes_opmode >

Enumerations
enum class	Keyring_aes_opmode {   keyring_aes_256_ecb = 0 , keyring_aes_256_cbc , keyring_aes_256_cfb1 , keyring_aes_256_cfb8 ,   keyring_aes_256_cfb128 , keyring_aes_256_ofb , keyring_aes_opmode_invalid }
	Supported AES cipher/block mode combos. More...
enum	aes_return_status {   AES_OP_OK , AES_OUTPUT_SIZE_NULL , AES_KEY_TRANSFORMATION_ERROR , AES_CTX_ALLOCATION_ERROR ,   AES_INVALID_BLOCK_MODE , AES_IV_EMPTY , AES_ENCRYPTION_ERROR , AES_DECRYPTION_ERROR }

Functions
const EVP_CIPHER *	aes_evp_type (const Keyring_aes_opmode mode)
bool	aes_create_key (const unsigned char *key, unsigned int key_length, std::unique_ptr< unsigned char[]> &rkey, size_t *rkey_size, Keyring_aes_opmode opmode)
	Transforms an arbitrary long key into a fixed length AES key. More...
size_t	get_ciphertext_size (size_t input_size, const Keyring_aes_opmode mode)
aes_return_status	aes_encrypt (const unsigned char *source, unsigned int source_length, unsigned char *dest, const unsigned char *key, unsigned int key_length, Keyring_aes_opmode mode, const unsigned char *iv, bool padding, size_t *encrypted_length)
aes_return_status	aes_decrypt (const unsigned char *source, unsigned int source_length, unsigned char *dest, const unsigned char *key, unsigned int key_length, enum Keyring_aes_opmode mode, const unsigned char *iv, bool padding, size_t *decrypted_length)

Variables
size_t	aes_opmode_key_sizes []

Typedef Documentation

block_mode_key

using keyring_common::aes_encryption::block_mode_key = typedef std::pair<std::string, size_t>

Known_block_mode_map

using keyring_common::aes_encryption::Known_block_mode_map = typedef std::map<block_mode_key, Keyring_aes_opmode>

Enumeration Type Documentation

aes_return_status

enum keyring_common::aes_encryption::aes_return_status

Enumerator
AES_OP_OK
AES_OUTPUT_SIZE_NULL
AES_KEY_TRANSFORMATION_ERROR
AES_CTX_ALLOCATION_ERROR
AES_INVALID_BLOCK_MODE
AES_IV_EMPTY
AES_ENCRYPTION_ERROR
AES_DECRYPTION_ERROR

Keyring_aes_opmode

enum class keyring_common::aes_encryption::Keyring_aes_opmode

strong

Supported AES cipher/block mode combos.

Enumerator
keyring_aes_256_ecb
keyring_aes_256_cbc
keyring_aes_256_cfb1
keyring_aes_256_cfb8
keyring_aes_256_cfb128
keyring_aes_256_ofb
keyring_aes_opmode_invalid

Function Documentation

aes_create_key()

bool keyring_common::aes_encryption::aes_create_key	(	const unsigned char *	key,
		unsigned int	key_length,
		std::unique_ptr< unsigned char[]> &	rkey,
		size_t *	rkey_size,
		Keyring_aes_opmode	opmode
	)

Transforms an arbitrary long key into a fixed length AES key.

Parameters

[in]	key	Key to use for real key creation
[in]	key_length	Length of the key
[out]	rkey	Generated key
[out]	rkey_size	Size of generated key
[in]	opmode	encryption mode

Returns

Key generation status

Return values

true	Success
false	Error

aes_decrypt()

aes_return_status keyring_common::aes_encryption::aes_decrypt	(	const unsigned char *	source,
		unsigned int	source_length,
		unsigned char *	dest,
		const unsigned char *	key,
		unsigned int	key_length,
		enum Keyring_aes_opmode	mode,
		const unsigned char *	iv,
		bool	padding,
		size_t *	decrypted_length
	)

aes_encrypt()

aes_return_status keyring_common::aes_encryption::aes_encrypt	(	const unsigned char *	source,
		unsigned int	source_length,
		unsigned char *	dest,
		const unsigned char *	key,
		unsigned int	key_length,
		Keyring_aes_opmode	mode,
		const unsigned char *	iv,
		bool	padding,
		size_t *	encrypted_length
	)

aes_evp_type()

const EVP_CIPHER * keyring_common::aes_encryption::aes_evp_type

(

const Keyring_aes_opmode

mode

)

get_ciphertext_size()

size_t keyring_common::aes_encryption::get_ciphertext_size	(	size_t	input_size,
		const Keyring_aes_opmode	mode
	)

Variable Documentation

aes_opmode_key_sizes

size_t keyring_common::aes_encryption::aes_opmode_key_sizes[]

Initial value:

= {
    256 ,  256 ,    256 ,
    256 , 256 , 256 
}