Collaboration diagram for Authenticated encryptions:

Data Structures
struct	mcci_tweetnacl_secretbox_cipherzero_t
	Reference structure for bytes required to be zero at front of cihper text. More...

struct	mcci_tweetnacl_secretbox_key_t
	Reference structure for key bytes for secretbox. More...

struct	mcci_tweetnacl_secretbox_messagezero_t
	Reference structure for bytes requried to be zero at front of plaintext. More...

struct	mcci_tweetnacl_secretbox_nonce_t
	Reference structure for nonce bytes for secretbox. More...

Functions
static mcci_tweetnacl_result_t	mcci_tweetnacl_secretbox (unsigned char pCipherText, const unsigned char pPlainText, size_t sizeText, const mcci_tweetnacl_secretbox_nonce_t pNonce, const mcci_tweetnacl_secretbox_key_t pKey)
	Secret-key authenticated encryption (using xsalsa20) More...

static mcci_tweetnacl_result_t	mcci_tweetnacl_secretbox_open (unsigned char pPlainText, const unsigned char pCipherText, size_t sizeText, const mcci_tweetnacl_secretbox_nonce_t pNonce, const mcci_tweetnacl_secretbox_key_t pKey)
	Secret-key authenticated decryption (using xsalsa20) More...

Detailed Description

Function Documentation

static mcci_tweetnacl_result_t mcci_tweetnacl_secretbox	(	unsigned char *	pCipherText,
		const unsigned char *	pPlainText,
		size_t	sizeText,
		const mcci_tweetnacl_secretbox_nonce_t *	pNonce,
		const mcci_tweetnacl_secretbox_key_t *	pKey
	)

inlinestatic

Secret-key authenticated encryption (using xsalsa20)

Parameters

[out]	pCipherText	pointer to buffer of size `sizeText` bytes.
[in]	pPlainText	pointer to buffer of size `sizeText` bytes.
[in]	sizeText	size of the output text buffer
[in]	pNonce	pointer to 24-byte nonce
[in]	pKey	pointer to 32-byte key buffer.

Returns: zero for successful encryption, non-zero for parameter validation failure.

Note: pPlainText must start with a string of sizeof(mcci_tweetnacl_secretbox_messagezero_t::bytes) bytes of zero. The first sizeof(mcci_tweetnacl_secretbox_cipherzero_t::bytes) bytes of pCipherText will be zero. Thus, the real ciphertext data is from pCipherText + sizeof(mcci_tweetnacl_secretbox_cipherzero_t::bytes) to pCihperText + sizeText - 1.

static mcci_tweetnacl_result_t mcci_tweetnacl_secretbox_open	(	unsigned char *	pPlainText,
		const unsigned char *	pCipherText,
		size_t	sizeText,
		const mcci_tweetnacl_secretbox_nonce_t *	pNonce,
		const mcci_tweetnacl_secretbox_key_t *	pKey
	)

inlinestatic

Secret-key authenticated decryption (using xsalsa20)

Parameters

[out]	pPlainText	pointer to buffer of size `sizeText` bytes.
[in]	pCipherText	pointer to buffer of size `sizeText` bytes.
[in]	sizeText	size of the output text buffer
[in]	pNonce	pointer to 24-byte nonce
[in]	pKey	pointer to 32-byte key buffer.

Returns: zero for successful decryption and authenticaion, non-zero otherwise.

Note: pCipherText must start with a string of sizeof(mcci_tweetnacl_secretbox_cipherzero_t::bytes) bytes of zero. The first sizeof(mcci_tweetnacl_secretbox_messagezero_t::bytes) bytes of pPlainText will be zero. Thus, the real plaintext data is from pPlainText + sizeof(mcci_tweetnacl_secretbox_messagezero_t::bytes) to pPlainText + sizeText - 1.