2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 #include "internal/cryptlib.h"
13 #include <openssl/objects.h>
14 #include <openssl/evp.h>
15 #include "internal/bn_int.h"
16 #include "internal/evp_int.h"
18 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx)
21 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {
22 EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT,
23 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
26 ctx->operation = EVP_PKEY_OP_PARAMGEN;
27 if (!ctx->pmeth->paramgen_init)
29 ret = ctx->pmeth->paramgen_init(ctx);
31 ctx->operation = EVP_PKEY_OP_UNDEFINED;
35 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
38 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {
39 EVPerr(EVP_F_EVP_PKEY_PARAMGEN,
40 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
44 if (ctx->operation != EVP_PKEY_OP_PARAMGEN) {
45 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);
53 *ppkey = EVP_PKEY_new();
56 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, ERR_R_MALLOC_FAILURE);
60 ret = ctx->pmeth->paramgen(ctx, *ppkey);
62 EVP_PKEY_free(*ppkey);
68 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx)
71 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) {
72 EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT,
73 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
76 ctx->operation = EVP_PKEY_OP_KEYGEN;
77 if (!ctx->pmeth->keygen_init)
79 ret = ctx->pmeth->keygen_init(ctx);
81 ctx->operation = EVP_PKEY_OP_UNDEFINED;
85 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
89 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) {
90 EVPerr(EVP_F_EVP_PKEY_KEYGEN,
91 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
94 if (ctx->operation != EVP_PKEY_OP_KEYGEN) {
95 EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED);
103 *ppkey = EVP_PKEY_new();
107 ret = ctx->pmeth->keygen(ctx, *ppkey);
109 EVP_PKEY_free(*ppkey);
115 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb)
117 ctx->pkey_gencb = cb;
120 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx)
122 return ctx->pkey_gencb;
126 * "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB style
130 static int trans_cb(int a, int b, BN_GENCB *gcb)
132 EVP_PKEY_CTX *ctx = BN_GENCB_get_arg(gcb);
133 ctx->keygen_info[0] = a;
134 ctx->keygen_info[1] = b;
135 return ctx->pkey_gencb(ctx);
138 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx)
140 BN_GENCB_set(cb, trans_cb, ctx);
143 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx)
146 return ctx->keygen_info_count;
147 if (idx < 0 || idx > ctx->keygen_info_count)
149 return ctx->keygen_info[idx];
152 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
153 const unsigned char *key, int keylen)
155 EVP_PKEY_CTX *mac_ctx = NULL;
156 EVP_PKEY *mac_key = NULL;
157 mac_ctx = EVP_PKEY_CTX_new_id(type, e);
160 if (EVP_PKEY_keygen_init(mac_ctx) <= 0)
162 if (EVP_PKEY_CTX_set_mac_key(mac_ctx, key, keylen) <= 0)
164 if (EVP_PKEY_keygen(mac_ctx, &mac_key) <= 0)
167 EVP_PKEY_CTX_free(mac_ctx);