ocrypto_rsa1024_pss_sha256_verify()

int ocrypto_rsa1024_pss_sha256_verify	(	const uint8_t	s[128],
		const uint8_t *	m,
		size_t	m_len,
		size_t	s_len,
		const ocrypto_rsa1024_pub_key *	pk
	)

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

1024-bit RSA PSS SHA-256 signature verify.

The signature s of the input message m is verified.

Parameters

s	The 128-byte signature.
m	The signed message.
m_len	Length of m.
s_len	The length of the salt.
pk	A valid 1024-bit RSA public key.

Return values

0	If the signature is valid.
-1	If verification failed.
-2	If the salt is too long.

Remarks

The key pk should be initialized with ocrypto_rsa1024_init_pub_key.