86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
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/*
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rsagen.c -- RSA key generation and export
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Copyright (C) 2008 Guus Sliepen <guus@tinc-vpn.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include "system.h"
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#include <openssl/pem.h>
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#include <openssl/err.h>
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#include "logger.h"
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#include "rsagen.h"
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/* This function prettyprints the key generation process */
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static void indicator(int a, int b, void *p) {
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switch (a) {
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case 0:
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fprintf(stderr, ".");
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break;
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case 1:
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fprintf(stderr, "+");
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break;
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case 2:
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fprintf(stderr, "-");
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break;
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case 3:
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switch (b) {
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case 0:
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fprintf(stderr, " p\n");
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break;
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case 1:
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fprintf(stderr, " q\n");
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break;
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default:
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fprintf(stderr, "?");
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}
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break;
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default:
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fprintf(stderr, "?");
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}
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}
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// Generate RSA key
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bool rsa_generate(rsa_t *rsa, size_t bits, unsigned long exponent) {
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*rsa = RSA_generate_key(bits, exponent, indicator, NULL);
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return *rsa;
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}
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// Write PEM RSA keys
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bool rsa_write_pem_public_key(rsa_t *rsa, FILE *fp) {
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PEM_write_RSAPublicKey(fp, *rsa);
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return true;
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}
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bool rsa_write_pem_private_key(rsa_t *rsa, FILE *fp) {
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PEM_write_RSAPrivateKey(fp, *rsa, NULL, NULL, 0, NULL, NULL);
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return true;
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}
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