crypto_gnutls.c File Reference

#include "includes.h"
#include <gcrypt.h>
#include "common.h"
#include "crypto.h"

Include dependency graph for crypto_gnutls.c:

Go to the source code of this file.

Classes
struct	crypto_cipher
Functions
void	aes_decrypt (void *ctx, const u8 *crypt, u8 *plain)
void	aes_decrypt_deinit (void *ctx)
void *	aes_decrypt_init (const u8 *key, size_t len)
void	aes_encrypt (void *ctx, const u8 *plain, u8 *crypt)
void	aes_encrypt_deinit (void *ctx)
void *	aes_encrypt_init (const u8 *key, size_t len)
int	crypto_cipher_decrypt (struct crypto_cipher *ctx, const u8 *crypt, u8 *plain, size_t len)
void	crypto_cipher_deinit (struct crypto_cipher *ctx)
int	crypto_cipher_encrypt (struct crypto_cipher *ctx, const u8 *plain, u8 *crypt, size_t len)
struct crypto_cipher *	crypto_cipher_init (enum crypto_cipher_alg alg, const u8 *iv, const u8 *key, size_t key_len)
int	crypto_mod_exp (const u8 *base, size_t base_len, const u8 *power, size_t power_len, const u8 *modulus, size_t modulus_len, u8 *result, size_t *result_len)
void	des_encrypt (const u8 *clear, const u8 *key, u8 *cypher)
int	md4_vector (size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
int	md5_vector (size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
int	sha1_vector (size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)

---

Function Documentation

void aes_decrypt	(	void *	ctx,
		const u8 *	crypt,
		u8 *	plain
	)

aes_decrypt - Decrypt one AES block : Context pointer from aes_encrypt_init() : Encrypted data (16 bytes) : Buffer for the decrypted data (16 bytes)

Definition at line 146 of file crypto_gnutls.c.

void aes_decrypt_deinit

(

void *

ctx

)

aes_decrypt_deinit - Deinitialize AES decryption : Context pointer from aes_encrypt_init()

Definition at line 153 of file crypto_gnutls.c.

void* aes_decrypt_init	(	const u8 *	key,
		size_t	len
	)

aes_decrypt_init - Initialize AES for decryption : Decryption key : Key length in bytes (usually 16, i.e., 128 bits) Returns: Pointer to context data or NULL on failure

Definition at line 130 of file crypto_gnutls.c.

void aes_encrypt	(	void *	ctx,
		const u8 *	plain,
		u8 *	crypt
	)

aes_encrypt - Encrypt one AES block : Context pointer from aes_encrypt_init() : Plaintext data to be encrypted (16 bytes) : Buffer for the encrypted data (16 bytes)

Definition at line 116 of file crypto_gnutls.c.

void aes_encrypt_deinit

(

void *

ctx

)

aes_encrypt_deinit - Deinitialize AES encryption : Context pointer from aes_encrypt_init()

Definition at line 123 of file crypto_gnutls.c.

void* aes_encrypt_init	(	const u8 *	key,
		size_t	len
	)

aes_encrypt_init - Initialize AES for encryption : Encryption key : Key length in bytes (usually 16, i.e., 128 bits) Returns: Pointer to context data or NULL on failure

Definition at line 97 of file crypto_gnutls.c.

int crypto_cipher_decrypt	(	struct crypto_cipher *	ctx,
		const u8 *	crypt,
		u8 *	plain,
		size_t	len
	)

crypto_cipher_decrypt - Cipher decrypt : Context pointer from crypto_cipher_init() : Ciphertext to decrypt : Resulting plaintext : Length of the cipher text Returns: 0 on success, -1 on failure

This function is only used with internal TLSv1 implementation (CONFIG_TLS=internal). If that is not used, the crypto wrapper does not need to implement this.

Definition at line 290 of file crypto_gnutls.c.

void crypto_cipher_deinit

(

struct crypto_cipher *

ctx

)

crypto_cipher_decrypt - Free cipher context : Context pointer from crypto_cipher_init()

This function is only used with internal TLSv1 implementation (CONFIG_TLS=internal). If that is not used, the crypto wrapper does not need to implement this.

Definition at line 300 of file crypto_gnutls.c.

int crypto_cipher_encrypt	(	struct crypto_cipher *	ctx,
		const u8 *	plain,
		u8 *	crypt,
		size_t	len
	)

crypto_cipher_encrypt - Cipher encrypt : Context pointer from crypto_cipher_init() : Plaintext to cipher : Resulting ciphertext : Length of the plaintext Returns: 0 on success, -1 on failure

This function is only used with internal TLSv1 implementation (CONFIG_TLS=internal). If that is not used, the crypto wrapper does not need to implement this.

Definition at line 280 of file crypto_gnutls.c.

struct crypto_cipher* crypto_cipher_init	(	enum crypto_cipher_alg	alg,
		const u8 *	iv,
		const u8 *	key,
		size_t	key_len
	)			[read]

crypto_cipher_init - Initialize block/stream cipher function : Cipher algorithm : Initialization vector for block ciphers or NULL for stream ciphers : Cipher key : Length of key in bytes Returns: Pointer to cipher context to use with other cipher functions or NULL on failure

This function is only used with internal TLSv1 implementation (CONFIG_TLS=internal). If that is not used, the crypto wrapper does not need to implement this.

Definition at line 201 of file crypto_gnutls.c.

int crypto_mod_exp	(	const u8 *	base,
		size_t	base_len,
		const u8 *	power,
		size_t	power_len,
		const u8 *	modulus,
		size_t	modulus_len,
		u8 *	result,
		size_t *	result_len
	)

crypto_mod_exp - Modular exponentiation of large integers : Base integer (big endian byte array) : Length of base integer in bytes : Power integer (big endian byte array) : Length of power integer in bytes : Modulus integer (big endian byte array) : Length of modulus integer in bytes

Returns:

: Buffer for the result : Result length (max buffer size on input, real len on output) Returns: 0 on success, -1 on failure

This function calculates result = base ^ power mod modulus. modules_len is used as the maximum size of modulus buffer. It is set to the used size on success.

This function is only used with internal TLSv1 implementation (CONFIG_TLS=internal). If that is not used, the crypto wrapper does not need to implement this.

Definition at line 160 of file crypto_gnutls.c.

void des_encrypt	(	const u8 *	clear,
		const u8 *	key,
		u8 *	cypher
	)

des_encrypt - Encrypt one block with DES : 8 octets (in) : 7 octets (in) (no parity bits included) : 8 octets (out)

Definition at line 39 of file crypto_gnutls.c.

int md4_vector	(	size_t	num_elem,
		const u8 *	addr[],
		const size_t *	len,
		u8 *	mac
	)

md4_vector - MD4 hash for data vector : Number of elements in the data vector : Pointers to the data areas : Lengths of the data blocks : Buffer for the hash Returns: 0 on success, -1 on failure

Definition at line 21 of file crypto_gnutls.c.

int md5_vector	(	size_t	num_elem,
		const u8 *	addr[],
		const size_t *	len,
		u8 *	mac
	)

md5_vector - MD5 hash for data vector : Number of elements in the data vector : Pointers to the data areas : Lengths of the data blocks : Buffer for the hash Returns: 0 on success, -1 on failure

Definition at line 61 of file crypto_gnutls.c.

int sha1_vector	(	size_t	num_elem,
		const u8 *	addr[],
		const size_t *	len,
		u8 *	mac
	)

sha1_vector - SHA-1 hash for data vector : Number of elements in the data vector : Pointers to the data areas : Lengths of the data blocks : Buffer for the hash Returns: 0 on success, -1 on failure

Definition at line 79 of file crypto_gnutls.c.