include/crypto/internal/rsa.h

   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