ocrypto_ecdsa_p521_verify()

int ocrypto_ecdsa_p521_verify	(	const uint8_t	sig[132],
		const uint8_t *	m,
		size_t	mlen,
		const uint8_t	pk[132]
	)

ECDSA P-521 signature verification.

The signature sig of the input message m is verified using the signer's public key pk.

Parameters

sig	Input signature.
m	Input message.
mlen	Length of m.
pk	Signer's public key.

Return values

0	If the signature is valid.
-1	Otherwise.