1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * RSA internal helpers
4 *
5 * Copyright (c) 2015, Intel Corporation
6 * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
7 */
8#ifndef _RSA_HELPER_
9#define _RSA_HELPER_
10#include <linux/types.h>
11
12/**
13 * rsa_key - RSA key structure
14 * @n           : RSA modulus raw byte stream
15 * @e           : RSA public exponent raw byte stream
16 * @d           : RSA private exponent raw byte stream
17 * @p           : RSA prime factor p of n raw byte stream
18 * @q           : RSA prime factor q of n raw byte stream
19 * @dp          : RSA exponent d mod (p - 1) raw byte stream
20 * @dq          : RSA exponent d mod (q - 1) raw byte stream
21 * @qinv        : RSA CRT coefficient q^(-1) mod p raw byte stream
22 * @n_sz        : length in bytes of RSA modulus n
23 * @e_sz        : length in bytes of RSA public exponent
24 * @d_sz        : length in bytes of RSA private exponent
25 * @p_sz        : length in bytes of p field
26 * @q_sz        : length in bytes of q field
27 * @dp_sz       : length in bytes of dp field
28 * @dq_sz       : length in bytes of dq field
29 * @qinv_sz     : length in bytes of qinv field
30 */
31struct rsa_key {
32	const u8 *n;
33	const u8 *e;
34	const u8 *d;
35	const u8 *p;
36	const u8 *q;
37	const u8 *dp;
38	const u8 *dq;
39	const u8 *qinv;
40	size_t n_sz;
41	size_t e_sz;
42	size_t d_sz;
43	size_t p_sz;
44	size_t q_sz;
45	size_t dp_sz;
46	size_t dq_sz;
47	size_t qinv_sz;
48};
49
50int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
51		      unsigned int key_len);
52
53int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
54		       unsigned int key_len);
55
56extern struct crypto_template rsa_pkcs1pad_tmpl;
57#endif
58