AES

Functions
struct AVAES *	av_aes_alloc (void)
	Allocate an AVAES context.
int	av_aes_init (struct AVAES *a, const uint8_t *key, int key_bits, int decrypt)
	Initialize an AVAES context.
void	av_aes_crypt (struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
	Encrypt or decrypt a buffer using a previously initialized context.

Variables
const int	av_aes_size

Detailed Description

Function Documentation

struct AVAES* av_aes_alloc ( void  )

read

Allocate an AVAES context.

Definition at line 44 of file aes.c.

Referenced by crypto_open2(), ff_srtp_set_crypto(), and mxf_decrypt_triplet().

int av_aes_init	(	struct AVAES *	a,
		const uint8_t *	key,
		int	key_bits,
		int	decrypt
	)

Initialize an AVAES context.

Parameters

key_bits	128, 192 or 256
decrypt	0 for encryption, 1 for decryption

Definition at line 193 of file aes.c.

Referenced by crypto_open2(), ff_srtp_decrypt(), ff_srtp_encrypt(), ff_srtp_set_crypto(), and mxf_decrypt_triplet().

void av_aes_crypt	(	struct AVAES *	a,
		uint8_t *	dst,
		const uint8_t *	src,
		int	count,
		uint8_t *	iv,
		int	decrypt
	)

Encrypt or decrypt a buffer using a previously initialized context.

Parameters

count	number of 16 byte blocks
dst	destination array, can be equal to src
src	source array, can be equal to dst
iv	initialization vector for CBC mode, if NULL then ECB will be used
decrypt	0 for encryption, 1 for decryption

Definition at line 142 of file aes.c.

Referenced by crypto_read(), encrypt_counter(), and mxf_decrypt_triplet().

Variable Documentation

const int av_aes_size

Definition at line 42 of file aes.c.