include/crypto/internal/rsa.h

   1 /*
   2  * RSA internal helpers
   3  *
   4  * Copyright (c) 2015, Intel Corporation
   5  * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  */
  13 #ifndef _RSA_HELPER_
  14 #define _RSA_HELPER_
  15 #include <linux/types.h>
  16
  17 /**
  18  * rsa_key - RSA key structure
  19  * @n           : RSA modulus raw byte stream
  20  * @e           : RSA public exponent raw byte stream
  21  * @d           : RSA private exponent raw byte stream
  22  * @p           : RSA prime factor p of n raw byte stream
  23  * @q           : RSA prime factor q of n raw byte stream
  24  * @dp          : RSA exponent d mod (p - 1) raw byte stream
  25  * @dq          : RSA exponent d mod (q - 1) raw byte stream
  26  * @qinv        : RSA CRT coefficient q^(-1) mod p raw byte stream
  27  * @n_sz        : length in bytes of RSA modulus n
  28  * @e_sz        : length in bytes of RSA public exponent
  29  * @d_sz        : length in bytes of RSA private exponent
  30  * @p_sz        : length in bytes of p field
  31  * @q_sz        : length in bytes of q field
  32  * @dp_sz       : length in bytes of dp field
  33  * @dq_sz       : length in bytes of dq field
  34  * @qinv_sz     : length in bytes of qinv field
  35  */
  36 struct rsa_key {
  37         const u8 *n;
  38         const u8 *e;
  39         const u8 *d;
  40         const u8 *p;
  41         const u8 *q;
  42         const u8 *dp;
  43         const u8 *dq;
  44         const u8 *qinv;
  45         size_t n_sz;
  46         size_t e_sz;
  47         size_t d_sz;
  48         size_t p_sz;
  49         size_t q_sz;
  50         size_t dp_sz;
  51         size_t dq_sz;
  52         size_t qinv_sz;
  53 };
  54
  55 int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
  56                       unsigned int key_len);
  57
  58 int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
  59                        unsigned int key_len);
  60
  61 extern struct crypto_template rsa_pkcs1pad_tmpl;
  62 #endif