diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/evp/pmeth_gn.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/evp/pmeth_gn.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/evp/pmeth_gn.c b/openssl-1.1.0h/crypto/evp/pmeth_gn.c new file mode 100644 index 0000000..6adc3a9 --- /dev/null +++ b/openssl-1.1.0h/crypto/evp/pmeth_gn.c @@ -0,0 +1,169 @@ +/* + * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include <stdlib.h> +#include "internal/cryptlib.h" +#include <openssl/objects.h> +#include <openssl/evp.h> +#include "internal/bn_int.h" +#include "internal/evp_int.h" + +int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx) +{ + int ret; + if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) { + EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT, + EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); + return -2; + } + ctx->operation = EVP_PKEY_OP_PARAMGEN; + if (!ctx->pmeth->paramgen_init) + return 1; + ret = ctx->pmeth->paramgen_init(ctx); + if (ret <= 0) + ctx->operation = EVP_PKEY_OP_UNDEFINED; + return ret; +} + +int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey) +{ + int ret; + if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) { + EVPerr(EVP_F_EVP_PKEY_PARAMGEN, + EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); + return -2; + } + + if (ctx->operation != EVP_PKEY_OP_PARAMGEN) { + EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED); + return -1; + } + + if (ppkey == NULL) + return -1; + + if (*ppkey == NULL) + *ppkey = EVP_PKEY_new(); + + if (*ppkey == NULL) { + EVPerr(EVP_F_EVP_PKEY_PARAMGEN, ERR_R_MALLOC_FAILURE); + return -1; + } + + ret = ctx->pmeth->paramgen(ctx, *ppkey); + if (ret <= 0) { + EVP_PKEY_free(*ppkey); + *ppkey = NULL; + } + return ret; +} + +int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx) +{ + int ret; + if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) { + EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT, + EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); + return -2; + } + ctx->operation = EVP_PKEY_OP_KEYGEN; + if (!ctx->pmeth->keygen_init) + return 1; + ret = ctx->pmeth->keygen_init(ctx); + if (ret <= 0) + ctx->operation = EVP_PKEY_OP_UNDEFINED; + return ret; +} + +int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey) +{ + int ret; + + if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) { + EVPerr(EVP_F_EVP_PKEY_KEYGEN, + EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); + return -2; + } + if (ctx->operation != EVP_PKEY_OP_KEYGEN) { + EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED); + return -1; + } + + if (ppkey == NULL) + return -1; + + if (*ppkey == NULL) + *ppkey = EVP_PKEY_new(); + if (*ppkey == NULL) + return -1; + + ret = ctx->pmeth->keygen(ctx, *ppkey); + if (ret <= 0) { + EVP_PKEY_free(*ppkey); + *ppkey = NULL; + } + return ret; +} + +void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb) +{ + ctx->pkey_gencb = cb; +} + +EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx) +{ + return ctx->pkey_gencb; +} + +/* + * "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB style + * callbacks. + */ + +static int trans_cb(int a, int b, BN_GENCB *gcb) +{ + EVP_PKEY_CTX *ctx = BN_GENCB_get_arg(gcb); + ctx->keygen_info[0] = a; + ctx->keygen_info[1] = b; + return ctx->pkey_gencb(ctx); +} + +void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx) +{ + BN_GENCB_set(cb, trans_cb, ctx); +} + +int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx) +{ + if (idx == -1) + return ctx->keygen_info_count; + if (idx < 0 || idx > ctx->keygen_info_count) + return 0; + return ctx->keygen_info[idx]; +} + +EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, + const unsigned char *key, int keylen) +{ + EVP_PKEY_CTX *mac_ctx = NULL; + EVP_PKEY *mac_key = NULL; + mac_ctx = EVP_PKEY_CTX_new_id(type, e); + if (!mac_ctx) + return NULL; + if (EVP_PKEY_keygen_init(mac_ctx) <= 0) + goto merr; + if (EVP_PKEY_CTX_set_mac_key(mac_ctx, key, keylen) <= 0) + goto merr; + if (EVP_PKEY_keygen(mac_ctx, &mac_key) <= 0) + goto merr; + merr: + EVP_PKEY_CTX_free(mac_ctx); + return mac_key; +} |