Crypto functions

Functions for cryptography operations. More...

Files
file	ruuvi_interface_aes.h

Functions
rd_status_t	ri_aes_ecb_128_encrypt (const uint8_t *const cleartext, uint8_t *const ciphertext, const uint8_t *const key, const size_t data_length)
	encrypt a block with AES ECB 128 encryption

Detailed Description

Functions for cryptography operations.

These functions are in drivers because they are supposed to utilize hardware implementation in underlying ICs. A software fallback might be implemented later.

Function Documentation

ri_aes_ecb_128_encrypt()

rd_status_t ri_aes_ecb_128_encrypt	(	const uint8_t *const	cleartext,
		uint8_t *const	ciphertext,
		const uint8_t *const	key,
		const size_t	data_length
	)

encrypt a block with AES ECB 128 encryption

This call takes 16-byte divisible data as input and encrypts it with AES Electronic Codebook.

Parameters

[in]	cleartext	Data to encrypt. Must have 16-byte divisible length.
[out]	ciphertext	Encryped data output
[in]	key	Key to encrypt data with. Must be exactly 16 bytes.
[in]	data_length	Length of data. Input must equal output, must be 16 bytes divisible.

Return values

RD_SUCCESS	data was encrypted.
RD_ERROR_NULL	if any pointer is NULL
RD_ERROR_INVALID_LENGTH	if data length is not a multiple of 16