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_EVP_INTERNAL_H 58#define OPENSSL_HEADER_EVP_INTERNAL_H 59 60#include <openssl/base.h> 61 62#if defined(__cplusplus) 63extern "C" { 64#endif 65 66 67/* These values are flags for EVP_PKEY_ASN1_METHOD.flags. */ 68#define ASN1_PKEY_ALIAS 0x1 69#define ASN1_PKEY_DYNAMIC 0x2 70#define ASN1_PKEY_SIGPARAM_NULL 0x4 71 72struct evp_pkey_asn1_method_st { 73 int pkey_id; 74 int pkey_base_id; 75 unsigned long pkey_flags; 76 77 char *pem_str; 78 char *info; 79 80 int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub); 81 int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk); 82 int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b); 83 int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx); 84 85 int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf); 86 int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk); 87 int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent, 88 ASN1_PCTX *pctx); 89 90 /* pkey_opaque returns 1 if the |pk| is opaque. Opaque keys are backed by 91 * custom implementations which do not expose key material and parameters.*/ 92 int (*pkey_opaque)(const EVP_PKEY *pk); 93 94 int (*pkey_size)(const EVP_PKEY *pk); 95 int (*pkey_bits)(const EVP_PKEY *pk); 96 97 int (*param_decode)(EVP_PKEY *pkey, const unsigned char **pder, int derlen); 98 int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder); 99 int (*param_missing)(const EVP_PKEY *pk); 100 int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from); 101 int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b); 102 int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent, 103 ASN1_PCTX *pctx); 104 int (*sig_print)(BIO *out, const X509_ALGOR *sigalg, const ASN1_STRING *sig, 105 int indent, ASN1_PCTX *pctx); 106 107 108 void (*pkey_free)(EVP_PKEY *pkey); 109 int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2); 110 111 /* Legacy functions for old PEM */ 112 113 int (*old_priv_decode)(EVP_PKEY *pkey, const unsigned char **pder, 114 int derlen); 115 int (*old_priv_encode)(const EVP_PKEY *pkey, unsigned char **pder); 116 /* Custom ASN1 signature verification */ 117 int (*item_verify)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, 118 X509_ALGOR *a, ASN1_BIT_STRING *sig, EVP_PKEY *pkey); 119 int (*item_sign)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, 120 X509_ALGOR *alg1, X509_ALGOR *alg2, ASN1_BIT_STRING *sig); 121 122} /* EVP_PKEY_ASN1_METHOD */; 123 124 125typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx); 126 127#define EVP_PKEY_OP_UNDEFINED 0 128#define EVP_PKEY_OP_PARAMGEN (1 << 1) 129#define EVP_PKEY_OP_KEYGEN (1 << 2) 130#define EVP_PKEY_OP_SIGN (1 << 3) 131#define EVP_PKEY_OP_VERIFY (1 << 4) 132#define EVP_PKEY_OP_VERIFYRECOVER (1 << 5) 133#define EVP_PKEY_OP_SIGNCTX (1 << 6) 134#define EVP_PKEY_OP_VERIFYCTX (1 << 7) 135#define EVP_PKEY_OP_ENCRYPT (1 << 8) 136#define EVP_PKEY_OP_DECRYPT (1 << 9) 137#define EVP_PKEY_OP_DERIVE (1 << 10) 138 139#define EVP_PKEY_OP_TYPE_SIG \ 140 (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER | \ 141 EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX) 142 143#define EVP_PKEY_OP_TYPE_CRYPT (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT) 144 145#define EVP_PKEY_OP_TYPE_NOGEN \ 146 (EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE) 147 148#define EVP_PKEY_OP_TYPE_GEN (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN) 149 150#define EVP_PKEY_CTRL_MD 1 151#define EVP_PKEY_CTRL_GET_MD 2 152#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1) 153#define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 2) 154#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 3) 155#define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 4) 156#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 5) 157#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 6) 158#define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 7) 159#define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 8) 160#define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 9) 161#define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 10) 162#define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 11) 163#define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12) 164 165struct evp_pkey_ctx_st { 166 /* Method associated with this operation */ 167 const EVP_PKEY_METHOD *pmeth; 168 /* Engine that implements this method or NULL if builtin */ 169 ENGINE *engine; 170 /* Key: may be NULL */ 171 EVP_PKEY *pkey; 172 /* Peer key for key agreement, may be NULL */ 173 EVP_PKEY *peerkey; 174 /* operation contains one of the |EVP_PKEY_OP_*| values. */ 175 int operation; 176 /* Algorithm specific data */ 177 void *data; 178 /* Application specific data */ 179 void *app_data; 180} /* EVP_PKEY_CTX */; 181 182struct evp_pkey_method_st { 183 int pkey_id; 184 int flags; 185 186 int (*init)(EVP_PKEY_CTX *ctx); 187 int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src); 188 void (*cleanup)(EVP_PKEY_CTX *ctx); 189 190 int (*paramgen_init)(EVP_PKEY_CTX *ctx); 191 int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); 192 193 int (*keygen_init)(EVP_PKEY_CTX *ctx); 194 int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); 195 196 int (*sign_init)(EVP_PKEY_CTX *ctx); 197 int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, 198 const unsigned char *tbs, size_t tbslen); 199 200 int (*verify_init)(EVP_PKEY_CTX *ctx); 201 int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen, 202 const unsigned char *tbs, size_t tbslen); 203 204 int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); 205 int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, 206 EVP_MD_CTX *mctx); 207 208 int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); 209 int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen, 210 EVP_MD_CTX *mctx); 211 212 int (*encrypt_init)(EVP_PKEY_CTX *ctx); 213 int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, 214 const unsigned char *in, size_t inlen); 215 216 int (*decrypt_init)(EVP_PKEY_CTX *ctx); 217 int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, 218 const unsigned char *in, size_t inlen); 219 220 int (*derive_init)(EVP_PKEY_CTX *ctx); 221 int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen); 222 223 int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); 224 int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value); 225} /* EVP_PKEY_METHOD */; 226 227 228#if defined(__cplusplus) 229} /* extern C */ 230#endif 231 232#endif /* OPENSSL_HEADER_EVP_INTERNAL_H */ 233