[thirdparty/openssl.git] / apps / genpkey.c

/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2006
 */
/* ====================================================================
 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
#include <stdio.h>
#include <string.h>
#include "apps.h"
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif

static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e);
static int genpkey_cb(EVP_PKEY_CTX *ctx);

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_ENGINE, OPT_OUTFORM, OPT_OUT, OPT_PASS, OPT_PARAMFILE,
    OPT_ALGORITHM, OPT_PKEYOPT, OPT_GENPARAM, OPT_TEXT, OPT_CIPHER
} OPTION_CHOICE;

OPTIONS genpkey_options[] = {
    {"help", OPT_HELP, '-', "Display this summary"},
    {"out", OPT_OUT, '>', "Output file"},
    {"outform", OPT_OUTFORM, 'F', "output format (DER or PEM)"},
    {"pass", OPT_PASS, 's', "Output file pass phrase source"},
    {"paramfile", OPT_PARAMFILE, '<', "Parameters file"},
    {"algorithm", OPT_ALGORITHM, 's', "The public key algorithm"},
    {"pkeyopt", OPT_PKEYOPT, 's',
     "Set the public key algorithm option as opt:value"},
    {"genparam", OPT_GENPARAM, '-', "Generate parameters, not key"},
    {"text", OPT_TEXT, '-', "Print the in text"},
    {"", OPT_CIPHER, '-', "Cipher to use to encrypt the key"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
    /* This is deliberately last. */
    {OPT_HELP_STR, 1, 1,
     "Order of options may be important!  See the documentation.\n"},
    {NULL}
};

int genpkey_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY *pkey = NULL;
    EVP_PKEY_CTX *ctx = NULL;
    char *outfile = NULL, *passarg = NULL, *pass = NULL, *prog;
    const EVP_CIPHER *cipher = NULL;
    OPTION_CHOICE o;
    int outformat = FORMAT_PEM, text = 0, ret = 1, rv, do_param = 0;
    int private = 0;

    prog = opt_init(argc, argv, genpkey_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            ret = 0;
            opt_help(genpkey_options);
            goto end;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_PASS:
            passarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_PARAMFILE:
            if (do_param == 1)
                goto opthelp;
            if (!init_keygen_file(&ctx, opt_arg(), e))
                goto end;
            break;
        case OPT_ALGORITHM:
            if (!init_gen_str(&ctx, opt_arg(), e, do_param))
                goto end;
            break;
        case OPT_PKEYOPT:
            if (ctx == NULL) {
                BIO_printf(bio_err, "%s: No keytype specified.\n", prog);
                goto opthelp;
            }
            if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
                BIO_printf(bio_err,
                           "%s: Error setting %s parameter:\n",
                           prog, opt_arg());
                ERR_print_errors(bio_err);
                goto end;
            }
            break;
        case OPT_GENPARAM:
            if (ctx != NULL)
                goto opthelp;
            do_param = 1;
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &cipher)
                || do_param == 1)
                goto opthelp;
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    private = do_param ? 0 : 1;

    if (ctx == NULL)
        goto opthelp;

    if (!app_passwd(passarg, NULL, &pass, NULL)) {
        BIO_puts(bio_err, "Error getting password\n");
        goto end;
    }

    out = bio_open_owner(outfile, outformat, private);
    if (out == NULL)
        goto end;

    EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
    EVP_PKEY_CTX_set_app_data(ctx, bio_err);

    if (do_param) {
        if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
            BIO_puts(bio_err, "Error generating parameters\n");
            ERR_print_errors(bio_err);
            goto end;
        }
    } else {
        if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
            BIO_puts(bio_err, "Error generating key\n");
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (do_param)
        rv = PEM_write_bio_Parameters(out, pkey);
    else if (outformat == FORMAT_PEM) {
        assert(private);
        rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass);
    } else if (outformat == FORMAT_ASN1) {
        assert(private);
        rv = i2d_PrivateKey_bio(out, pkey);
    } else {
        BIO_printf(bio_err, "Bad format specified for key\n");
        goto end;
    }

    if (rv <= 0) {
        BIO_puts(bio_err, "Error writing key\n");
        ERR_print_errors(bio_err);
    }

    if (text) {
        if (do_param)
            rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
        else
            rv = EVP_PKEY_print_private(out, pkey, 0, NULL);

        if (rv <= 0) {
            BIO_puts(bio_err, "Error printing key\n");
            ERR_print_errors(bio_err);
        }
    }

    ret = 0;

 end:
    EVP_PKEY_free(pkey);
    EVP_PKEY_CTX_free(ctx);
    BIO_free_all(out);
    BIO_free(in);
    OPENSSL_free(pass);

    return ret;
}

static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e)
{
    BIO *pbio;
    EVP_PKEY *pkey = NULL;
    EVP_PKEY_CTX *ctx = NULL;
    if (*pctx) {
        BIO_puts(bio_err, "Parameters already set!\n");
        return 0;
    }

    pbio = BIO_new_file(file, "r");
    if (!pbio) {
        BIO_printf(bio_err, "Can't open parameter file %s\n", file);
        return 0;
    }

    pkey = PEM_read_bio_Parameters(pbio, NULL);
    BIO_free(pbio);

    if (!pkey) {
        BIO_printf(bio_err, "Error reading parameter file %s\n", file);
        return 0;
    }

    ctx = EVP_PKEY_CTX_new(pkey, e);
    if (ctx == NULL)
        goto err;
    if (EVP_PKEY_keygen_init(ctx) <= 0)
        goto err;
    EVP_PKEY_free(pkey);
    *pctx = ctx;
    return 1;

 err:
    BIO_puts(bio_err, "Error initializing context\n");
    ERR_print_errors(bio_err);
    EVP_PKEY_CTX_free(ctx);
    EVP_PKEY_free(pkey);
    return 0;

}

int init_gen_str(EVP_PKEY_CTX **pctx,
                 const char *algname, ENGINE *e, int do_param)
{
    EVP_PKEY_CTX *ctx = NULL;
    const EVP_PKEY_ASN1_METHOD *ameth;
    ENGINE *tmpeng = NULL;
    int pkey_id;

    if (*pctx) {
        BIO_puts(bio_err, "Algorithm already set!\n");
        return 0;
    }

    ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1);

#ifndef OPENSSL_NO_ENGINE
    if (!ameth && e)
        ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1);
#endif

    if (!ameth) {
        BIO_printf(bio_err, "Algorithm %s not found\n", algname);
        return 0;
    }

    ERR_clear_error();

    EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
#ifndef OPENSSL_NO_ENGINE
    ENGINE_finish(tmpeng);
#endif
    ctx = EVP_PKEY_CTX_new_id(pkey_id, e);

    if (!ctx)
        goto err;
    if (do_param) {
        if (EVP_PKEY_paramgen_init(ctx) <= 0)
            goto err;
    } else {
        if (EVP_PKEY_keygen_init(ctx) <= 0)
            goto err;
    }

    *pctx = ctx;
    return 1;

 err:
    BIO_printf(bio_err, "Error initializing %s context\n", algname);
    ERR_print_errors(bio_err);
    EVP_PKEY_CTX_free(ctx);
    return 0;

}

static int genpkey_cb(EVP_PKEY_CTX *ctx)
{
    char c = '*';
    BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
    int p;
    p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
    if (p == 0)
        c = '.';
    if (p == 1)
        c = '+';
    if (p == 2)
        c = '*';
    if (p == 3)
        c = '\n';
    BIO_write(b, &c, 1);
    (void)BIO_flush(b);
    return 1;
}
Commit	Line	Data
0f113f3e MC	1	/*
	2	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	3	* 2006
f5cda4cb DSH	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
f5cda4cb DSH	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58	#include <stdio.h>
	59	#include <string.h>
	60	#include "apps.h"
	61	#include <openssl/pem.h>
	62	#include <openssl/err.h>
	63	#include <openssl/evp.h>
01b8b3c7	64	#ifndef OPENSSL_NO_ENGINE
0f113f3e	65	# include <openssl/engine.h>
01b8b3c7	66	#endif
f5cda4cb	67
7e1b7485	68	static int init_keygen_file(EVP_PKEY_CTX *pctx, const char file, ENGINE *e);
f5cda4cb DSH	69	static int genpkey_cb(EVP_PKEY_CTX *ctx);
f5cda4cb DSH	70
7e1b7485 RS	71	typedef enum OPTION_choice {
	72	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	73	OPT_ENGINE, OPT_OUTFORM, OPT_OUT, OPT_PASS, OPT_PARAMFILE,
	74	OPT_ALGORITHM, OPT_PKEYOPT, OPT_GENPARAM, OPT_TEXT, OPT_CIPHER
	75	} OPTION_CHOICE;
	76
	77	OPTIONS genpkey_options[] = {
	78	{"help", OPT_HELP, '-', "Display this summary"},
	79	{"out", OPT_OUT, '>', "Output file"},
	80	{"outform", OPT_OUTFORM, 'F', "output format (DER or PEM)"},
	81	{"pass", OPT_PASS, 's', "Output file pass phrase source"},
	82	{"paramfile", OPT_PARAMFILE, '<', "Parameters file"},
	83	{"algorithm", OPT_ALGORITHM, 's', "The public key algorithm"},
	84	{"pkeyopt", OPT_PKEYOPT, 's',
	85	"Set the public key algorithm option as opt:value"},
	86	{"genparam", OPT_GENPARAM, '-', "Generate parameters, not key"},
	87	{"text", OPT_TEXT, '-', "Print the in text"},
	88	{"", OPT_CIPHER, '-', "Cipher to use to encrypt the key"},
	89	#ifndef OPENSSL_NO_ENGINE
	90	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
	91	#endif
9c3bcfa0	92	/* This is deliberately last. */
7e1b7485 RS	93	{OPT_HELP_STR, 1, 1,
	94	"Order of options may be important! See the documentation.\n"},
	95	{NULL}
	96	};
f5cda4cb	97
7e1b7485	98	int genpkey_main(int argc, char **argv)
0f113f3e	99	{
0f113f3e	100	BIO in = NULL, out = NULL;
7e1b7485	101	ENGINE *e = NULL;
0f113f3e MC	102	EVP_PKEY *pkey = NULL;
0f113f3e MC	103	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	104	char outfile = NULL, passarg = NULL, pass = NULL, prog;
	105	const EVP_CIPHER *cipher = NULL;
	106	OPTION_CHOICE o;
	107	int outformat = FORMAT_PEM, text = 0, ret = 1, rv, do_param = 0;
3b061a00	108	int private = 0;
7e1b7485 RS	109
	110	prog = opt_init(argc, argv, genpkey_options);
	111	while ((o = opt_next()) != OPT_EOF) {
	112	switch (o) {
	113	case OPT_EOF:
	114	case OPT_ERR:
	115	opthelp:
	116	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	117	goto end;
	118	case OPT_HELP:
	119	ret = 0;
	120	opt_help(genpkey_options);
	121	goto end;
	122	case OPT_OUTFORM:
	123	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
	124	goto opthelp;
	125	break;
	126	case OPT_OUT:
	127	outfile = opt_arg();
	128	break;
7e1b7485 RS	129	case OPT_PASS:
	130	passarg = opt_arg();
	131	break;
7e1b7485 RS	132	case OPT_ENGINE:
	133	e = setup_engine(opt_arg(), 0);
	134	break;
7e1b7485	135	case OPT_PARAMFILE:
0f113f3e	136	if (do_param == 1)
7e1b7485 RS	137	goto opthelp;
7e1b7485 RS	138	if (!init_keygen_file(&ctx, opt_arg(), e))
0f113f3e	139	goto end;
7e1b7485 RS	140	break;
	141	case OPT_ALGORITHM:
	142	if (!init_gen_str(&ctx, opt_arg(), e, do_param))
0f113f3e	143	goto end;
7e1b7485 RS	144	break;
	145	case OPT_PKEYOPT:
	146	if (ctx == NULL) {
	147	BIO_printf(bio_err, "%s: No keytype specified.\n", prog);
	148	goto opthelp;
	149	}
	150	if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
	151	BIO_printf(bio_err,
	152	"%s: Error setting %s parameter:\n",
	153	prog, opt_arg());
0f113f3e MC	154	ERR_print_errors(bio_err);
	155	goto end;
	156	}
7e1b7485 RS	157	break;
	158	case OPT_GENPARAM:
	159	if (ctx != NULL)
	160	goto opthelp;
0f113f3e	161	do_param = 1;
7e1b7485 RS	162	break;
7e1b7485 RS	163	case OPT_TEXT:
0f113f3e	164	text = 1;
7e1b7485 RS	165	break;
	166	case OPT_CIPHER:
	167	if (!opt_cipher(opt_unknown(), &cipher)
	168	\|\| do_param == 1)
	169	goto opthelp;
0f113f3e	170	}
0f113f3e	171	}
7e1b7485	172	argc = opt_num_rest();
03358517 KR	173	if (argc != 0)
	174	goto opthelp;
	175
3b061a00	176	private = do_param ? 0 : 1;
0f113f3e	177
7e1b7485 RS	178	if (ctx == NULL)
7e1b7485 RS	179	goto opthelp;
0f113f3e	180
7e1b7485	181	if (!app_passwd(passarg, NULL, &pass, NULL)) {
0f113f3e MC	182	BIO_puts(bio_err, "Error getting password\n");
	183	goto end;
	184	}
	185
bdd58d98	186	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	187	if (out == NULL)
7e1b7485 RS	188	goto end;
0f113f3e MC	189
	190	EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
	191	EVP_PKEY_CTX_set_app_data(ctx, bio_err);
	192
	193	if (do_param) {
	194	if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
	195	BIO_puts(bio_err, "Error generating parameters\n");
	196	ERR_print_errors(bio_err);
	197	goto end;
	198	}
	199	} else {
	200	if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
	201	BIO_puts(bio_err, "Error generating key\n");
	202	ERR_print_errors(bio_err);
	203	goto end;
	204	}
	205	}
	206
	207	if (do_param)
	208	rv = PEM_write_bio_Parameters(out, pkey);
3b061a00 RS	209	else if (outformat == FORMAT_PEM) {
3b061a00 RS	210	assert(private);
0f113f3e	211	rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass);
3b061a00 RS	212	} else if (outformat == FORMAT_ASN1) {
3b061a00 RS	213	assert(private);
0f113f3e	214	rv = i2d_PrivateKey_bio(out, pkey);
3b061a00	215	} else {
0f113f3e MC	216	BIO_printf(bio_err, "Bad format specified for key\n");
	217	goto end;
	218	}
	219
	220	if (rv <= 0) {
	221	BIO_puts(bio_err, "Error writing key\n");
	222	ERR_print_errors(bio_err);
	223	}
	224
	225	if (text) {
	226	if (do_param)
	227	rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
	228	else
	229	rv = EVP_PKEY_print_private(out, pkey, 0, NULL);
	230
	231	if (rv <= 0) {
	232	BIO_puts(bio_err, "Error printing key\n");
	233	ERR_print_errors(bio_err);
	234	}
	235	}
	236
	237	ret = 0;
	238
	239	end:
c5ba2d99 RS	240	EVP_PKEY_free(pkey);
c5ba2d99 RS	241	EVP_PKEY_CTX_free(ctx);
ca3a82c3	242	BIO_free_all(out);
0f113f3e	243	BIO_free(in);
b548a1f1	244	OPENSSL_free(pass);
0f113f3e MC	245
	246	return ret;
	247	}
f5cda4cb	248
7e1b7485	249	static int init_keygen_file(EVP_PKEY_CTX *pctx, const char file, ENGINE *e)
0f113f3e MC	250	{
	251	BIO *pbio;
	252	EVP_PKEY *pkey = NULL;
	253	EVP_PKEY_CTX *ctx = NULL;
	254	if (*pctx) {
7e1b7485	255	BIO_puts(bio_err, "Parameters already set!\n");
0f113f3e MC	256	return 0;
	257	}
	258
	259	pbio = BIO_new_file(file, "r");
	260	if (!pbio) {
7e1b7485	261	BIO_printf(bio_err, "Can't open parameter file %s\n", file);
0f113f3e MC	262	return 0;
	263	}
	264
	265	pkey = PEM_read_bio_Parameters(pbio, NULL);
	266	BIO_free(pbio);
	267
	268	if (!pkey) {
	269	BIO_printf(bio_err, "Error reading parameter file %s\n", file);
	270	return 0;
	271	}
	272
	273	ctx = EVP_PKEY_CTX_new(pkey, e);
96487cdd	274	if (ctx == NULL)
0f113f3e MC	275	goto err;
	276	if (EVP_PKEY_keygen_init(ctx) <= 0)
	277	goto err;
	278	EVP_PKEY_free(pkey);
	279	*pctx = ctx;
	280	return 1;
	281
	282	err:
7e1b7485 RS	283	BIO_puts(bio_err, "Error initializing context\n");
7e1b7485 RS	284	ERR_print_errors(bio_err);
c5ba2d99 RS	285	EVP_PKEY_CTX_free(ctx);
c5ba2d99 RS	286	EVP_PKEY_free(pkey);
0f113f3e MC	287	return 0;
	288
	289	}
f5cda4cb	290
7e1b7485	291	int init_gen_str(EVP_PKEY_CTX **pctx,
0f113f3e MC	292	const char algname, ENGINE e, int do_param)
	293	{
	294	EVP_PKEY_CTX *ctx = NULL;
	295	const EVP_PKEY_ASN1_METHOD *ameth;
	296	ENGINE *tmpeng = NULL;
	297	int pkey_id;
01b8b3c7	298
0f113f3e	299	if (*pctx) {
7e1b7485	300	BIO_puts(bio_err, "Algorithm already set!\n");
0f113f3e MC	301	return 0;
0f113f3e MC	302	}
b3c6a331	303
0f113f3e	304	ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1);
f5cda4cb	305
70531c14	306	#ifndef OPENSSL_NO_ENGINE
0f113f3e MC	307	if (!ameth && e)
0f113f3e MC	308	ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1);
70531c14	309	#endif
b3c6a331	310
0f113f3e MC	311	if (!ameth) {
	312	BIO_printf(bio_err, "Algorithm %s not found\n", algname);
	313	return 0;
	314	}
f5cda4cb	315
0f113f3e	316	ERR_clear_error();
b3c6a331	317
0f113f3e	318	EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
01b8b3c7	319	#ifndef OPENSSL_NO_ENGINE
7c96dbcd	320	ENGINE_finish(tmpeng);
01b8b3c7	321	#endif
0f113f3e MC	322	ctx = EVP_PKEY_CTX_new_id(pkey_id, e);
	323
	324	if (!ctx)
	325	goto err;
	326	if (do_param) {
	327	if (EVP_PKEY_paramgen_init(ctx) <= 0)
	328	goto err;
	329	} else {
	330	if (EVP_PKEY_keygen_init(ctx) <= 0)
	331	goto err;
	332	}
	333
	334	*pctx = ctx;
	335	return 1;
	336
	337	err:
7e1b7485 RS	338	BIO_printf(bio_err, "Error initializing %s context\n", algname);
7e1b7485 RS	339	ERR_print_errors(bio_err);
c5ba2d99	340	EVP_PKEY_CTX_free(ctx);
0f113f3e MC	341	return 0;
	342
	343	}
f5cda4cb DSH	344
f5cda4cb DSH	345	static int genpkey_cb(EVP_PKEY_CTX *ctx)
0f113f3e MC	346	{
	347	char c = '*';
	348	BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
	349	int p;
	350	p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
	351	if (p == 0)
	352	c = '.';
	353	if (p == 1)
	354	c = '+';
	355	if (p == 2)
	356	c = '*';
	357	if (p == 3)
	358	c = '\n';
	359	BIO_write(b, &c, 1);
	360	(void)BIO_flush(b);
	361	return 1;
	362	}