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 */ 31 struct 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 50 int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key, 51 unsigned int key_len); 52 53 int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key, 54 unsigned int key_len); 55 56 extern struct crypto_template rsa_pkcs1pad_tmpl; 57 #endif 58