90efc82314
- ssc is a BIGNUM, since its size can be up to 16 bytes (not 16 bits as before) - protected le is now encoded as octet string (not as unsigned integer anymore) - sc_format_asn1_entry was fet with wrong pointers (lebuf instead of *lebuf and formatted_data instead of *formatted_data Added some debug output. git-svn-id: https://vsmartcard.svn.sourceforge.net/svnroot/vsmartcard@60 96b47cad-a561-4643-ad3b-153ac7d7599c
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* Copyright (C) 2010 Frank Morgner
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*
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* This file is part of ccid.
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*
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* ccid is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* ccid is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* ccid. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pace.h"
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#include <openssl/buffer.h>
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#include <openssl/pace.h>
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struct pace_sm_ctx *
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pace_sm_ctx_create(int protocol, const BUF_MEM *key_mac,
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const BUF_MEM *key_enc, PACE_CTX *ctx)
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{
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struct pace_sm_ctx *out = malloc(sizeof *out);
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if (!out)
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return NULL;
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out->ssc = BN_new();
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if (!out->ssc) {
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free(out);
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return NULL;
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}
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out->key_enc = key_enc;
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out->key_mac = key_mac;
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out->protocol = protocol;
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out->ctx = ctx;
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return out;
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}
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void
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pace_sm_ctx_free(struct pace_sm_ctx *ctx)
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{
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if (ctx) {
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if (ctx->ssc)
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BN_clear_free(ctx->ssc);
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free(ctx);
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}
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}
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void
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pace_sm_ctx_clear_free(struct pace_sm_ctx *ctx)
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{
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if (ctx) {
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if (ctx->key_mac) {
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OPENSSL_cleanse(ctx->key_mac->data, ctx->key_mac->max);
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BUF_MEM_free((BUF_MEM *) ctx->key_mac);
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}
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if (ctx->key_enc) {
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OPENSSL_cleanse(ctx->key_enc->data, ctx->key_enc->max);
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BUF_MEM_free((BUF_MEM *) ctx->key_enc);
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}
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PACE_CTX_clear_free(ctx->ctx);
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pace_sm_ctx_free(ctx);
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}
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}
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