ocrypto_rsa_oaep_sha256_encrypt()

int ocrypto_rsa_oaep_sha256_encrypt	(	uint8_t *	c,
		size_t	c_len,
		const uint8_t *	m,
		size_t	m_len,
		const uint8_t *	label,
		size_t	l_len,
		const uint8_t	seed[32],
		const ocrypto_rsa_pub_key *	pk,
		uint32_t *	mem )

#include <crypto/nrf_oberon/include/ocrypto_rsa_operations.h>

RSA OAEP SHA256 encryption.

The message m is encrypted to a ciphertext returned in c.

Parameters

[out]	c	The generated 128-byte ciphertext.
	c_len	Length of c.
	m	The message to be encrypted.
	m_len	Length of m. 0 <= m_len <= key-size - 66.
	label	The label associated with the message.
	l_len	Length of label. May be 0.
	seed	32-byte random seed.
	pk	A valid RSA public key.
	mem	The working memory. Length OCRYPTO_RSA_PUB_MEM_SIZE(bits).

Return values

-1	If the message is too long (m_len > key-size - 66).
0	On success.

Remarks

The key pk should be initialized with ocrypto_rsa_init_pub_key.

c, m, and mem may be same.