ocrypto_rsa_init_crt_key()

int ocrypto_rsa_init_crt_key	(	ocrypto_rsa_crt_key *	key,
		uint32_t *	key_mem,
		const uint8_t *	p,
		size_t	p_len,
		const uint8_t *	q,
		size_t	q_len,
		const uint8_t *	dp,
		size_t	dp_len,
		const uint8_t *	dq,
		size_t	dq_len,
		const uint8_t *	qinv,
		size_t	qi_len )

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

RSA secret key setup with CRT coefficients.

Parameters

[out]	key	The initialized secret key.
[out]	key_mem	Key memory. Length OCRYPTO_RSA_CRT_KEY_SIZE(bits). Must have same lifetime as key.
	p	The 1. RSA prime, unsigned big-endian.
	p_len	Length of p.
	q	The 2. RSA prime, unsigned big-endian.
	q_len	Length of q. Must be same as p_len.
	dp	The 1. CRT exponent, dp = d mod (p-1), unsigned big-endian.
	dp_len	Length of dp.
	dq	The 2. CRT exponent, dq = d mod (q-1), unsigned big-endian.
	dq_len	Length of dq.
	qinv	The CRT coefficient, qinv = 1/q mod p, unsigned big-endian.
	qi_len	Length of qinv.

Return values

-1	If the input length is invalid.
0	On success.

Remarks

The p, q, dp, dq, and qinv values can be read directly from the corresponding value parts of a DER encoded RSAPrivateKey.