ocrypto_rsa_pkcs1_v15_padding()

int ocrypto_rsa_pkcs1_v15_padding	(	uint8_t *	em,
		size_t	em_len,
		const uint8_t *	m,
		size_t	m_len,
		const uint8_t *	seed,
		size_t	s_len )

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

RSA PKCS1 V1.5 padding.

Parameters

[out]	em	The padded message.
	em_len	Length of em.
	m	The message to be padded.
	m_len	Length of m. 0 <= m_len <= em_len - 11.
	seed	The random seed to be used for the padding.
	s_len	Length of seed. s_len >= em_len - 3 - m_len

Return values

-1	If the message is too long (m_len > em_len - 11).
-2	If the seed is too short (s_len < em_len - 3 - m_len).
0	On success.

Remarks

The seed should consist of non-zero random bytes.