1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay@cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay@cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] */ 56 57 #ifndef OPENSSL_HEADER_RSA_INTERNAL_H 58 #define OPENSSL_HEADER_RSA_INTERNAL_H 59 60 #include <openssl/base.h> 61 62 #include <openssl/asn1.h> 63 64 65 #if defined(__cplusplus) 66 extern "C" { 67 #endif 68 69 70 #define RSA_PKCS1_PADDING_SIZE 11 71 72 73 /* BN_BLINDING flags */ 74 #define BN_BLINDING_NO_UPDATE 0x00000001 75 #define BN_BLINDING_NO_RECREATE 0x00000002 76 77 BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod); 78 void BN_BLINDING_free(BN_BLINDING *b); 79 int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx); 80 int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx); 81 int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx); 82 int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *); 83 int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *); 84 unsigned long BN_BLINDING_get_flags(const BN_BLINDING *); 85 void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long); 86 BN_BLINDING *BN_BLINDING_create_param( 87 BN_BLINDING *b, const BIGNUM *e, BIGNUM *m, BN_CTX *ctx, 88 int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, 89 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), 90 BN_MONT_CTX *m_ctx); 91 BN_BLINDING *rsa_setup_blinding(RSA *rsa, BN_CTX *in_ctx); 92 93 94 int RSA_padding_add_PKCS1_type_1(uint8_t *to, unsigned to_len, 95 const uint8_t *from, unsigned from_len); 96 int RSA_padding_check_PKCS1_type_1(uint8_t *to, unsigned to_len, 97 const uint8_t *from, unsigned from_len); 98 int RSA_padding_add_PKCS1_type_2(uint8_t *to, unsigned to_len, 99 const uint8_t *from, unsigned from_len); 100 int RSA_padding_check_PKCS1_type_2(uint8_t *to, unsigned to_len, 101 const uint8_t *from, unsigned from_len); 102 int RSA_padding_add_PKCS1_OAEP_mgf1(uint8_t *to, unsigned to_len, 103 const uint8_t *from, unsigned from_len, 104 const uint8_t *param, unsigned plen, 105 const EVP_MD *md, const EVP_MD *mgf1md); 106 int RSA_padding_check_PKCS1_OAEP_mgf1(uint8_t *to, unsigned to_len, 107 const uint8_t *from, unsigned from_len, 108 const uint8_t *param, unsigned plen, 109 const EVP_MD *md, const EVP_MD *mgf1md); 110 int RSA_padding_add_none(uint8_t *to, unsigned to_len, const uint8_t *from, 111 unsigned from_len); 112 int RSA_padding_check_none(uint8_t *to, unsigned to_len, const uint8_t *from, 113 unsigned from_len); 114 115 /* RSA_private_transform calls either the method-specific |private_transform| 116 * function (if given) or the generic one. See the comment for 117 * |private_transform| in |rsa_meth_st|. */ 118 int RSA_private_transform(RSA *rsa, uint8_t *out, const uint8_t *in, 119 size_t len); 120 121 typedef struct rsa_pss_params_st { 122 X509_ALGOR *hashAlgorithm; 123 X509_ALGOR *maskGenAlgorithm; 124 ASN1_INTEGER *saltLength; 125 ASN1_INTEGER *trailerField; 126 } RSA_PSS_PARAMS; 127 128 DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS) 129 130 typedef struct rsa_oaep_params_st { 131 X509_ALGOR *hashFunc; 132 X509_ALGOR *maskGenFunc; 133 X509_ALGOR *pSourceFunc; 134 } RSA_OAEP_PARAMS; 135 136 #if defined(__cplusplus) 137 } /* extern C */ 138 #endif 139 140 #endif /* OPENSSL_HEADER_RSA_INTERNAL_H */ 141