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

/*
 * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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 <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/evp.h>

static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e,
                            OSSL_LIB_CTX *libctx, const char *propq);
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,
    OPT_CONFIG,
    OPT_PROV_ENUM
} OPTION_CHOICE;

const OPTIONS genpkey_options[] = {
    OPT_SECTION("General"),
    {"help", OPT_HELP, '-', "Display this summary"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
    {"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"},
     OPT_CONFIG_OPTION,

    OPT_SECTION("Output"),
    {"out", OPT_OUT, '>', "Output file"},
    {"outform", OPT_OUTFORM, 'F', "output format (DER or PEM)"},
    {"pass", OPT_PASS, 's', "Output file pass phrase source"},
    {"genparam", OPT_GENPARAM, '-', "Generate parameters, not key"},
    {"text", OPT_TEXT, '-', "Print the in text"},
    {"", OPT_CIPHER, '-', "Cipher to use to encrypt the key"},

    OPT_PROV_OPTIONS,

    /* 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)
{
    CONF *conf = NULL;
    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;
    OSSL_LIB_CTX *libctx = app_get0_libctx();

    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, libctx, app_get0_propq()))
                goto end;
            break;
        case OPT_ALGORITHM:
            if (!init_gen_str(&ctx, opt_arg(), e, do_param, libctx, app_get0_propq()))
                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) {
                BIO_printf(bio_err,
                           "%s: '-genparam' option must be set before"
                            " the '-algorithm' option.\n", prog);
                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;
            if (EVP_CIPHER_mode(cipher) == EVP_CIPH_GCM_MODE ||
                EVP_CIPHER_mode(cipher) == EVP_CIPH_CCM_MODE ||
                EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE ||
                EVP_CIPHER_mode(cipher) == EVP_CIPH_OCB_MODE) {
                BIO_printf(bio_err, "%s: cipher mode not supported\n", prog);
                goto end;
            }
            break;
        case OPT_CONFIG:
            conf = app_load_config_modules(opt_arg());
            if (conf == NULL)
                goto end;
            break;
        case OPT_PROV_CASES:
            if (!opt_provider(o))
                goto end;
            break;
        }
    }

    /* No extra arguments. */
    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;
    }

    ret = 0;

    if (rv <= 0) {
        BIO_puts(bio_err, "Error writing key\n");
        ERR_print_errors(bio_err);
        ret = 1;
    }

    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 = 1;
        }
    }

 end:
    EVP_PKEY_free(pkey);
    EVP_PKEY_CTX_free(ctx);
    BIO_free_all(out);
    BIO_free(in);
    release_engine(e);
    OPENSSL_free(pass);
    NCONF_free(conf);
    return ret;
}

static int init_keygen_file(EVP_PKEY_CTX **pctx, const char *file, ENGINE *e,
                            OSSL_LIB_CTX *libctx, const char *propq)
{
    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 == NULL) {
        BIO_printf(bio_err, "Can't open parameter file %s\n", file);
        return 0;
    }

    pkey = PEM_read_bio_Parameters_ex(pbio, NULL, libctx, propq);
    BIO_free(pbio);

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

    if (e != NULL)
        ctx = EVP_PKEY_CTX_new(pkey, e);
    else
        ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
    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,
                 OSSL_LIB_CTX *libctx, const char *propq)
{
    EVP_PKEY_CTX *ctx = NULL;
    int pkey_id;

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

    pkey_id = get_legacy_pkey_id(libctx, algname, e);
    if (pkey_id != NID_undef)
        ctx = EVP_PKEY_CTX_new_id(pkey_id, e);
    else
        ctx = EVP_PKEY_CTX_new_from_name(libctx, algname, propq);

    if (ctx == NULL)
        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	1	/*
4333b89f	2	* Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
f5cda4cb	3	*
dffa7520	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7 RS	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
f5cda4cb	8	*/
846e33c7	9
f5cda4cb DSH	10	#include <stdio.h>
	11	#include <string.h>
	12	#include "apps.h"
dab2cd68	13	#include "progs.h"
f5cda4cb DSH	14	#include <openssl/pem.h>
	15	#include <openssl/err.h>
	16	#include <openssl/evp.h>
	17
7c9a7cf1	18	static int init_keygen_file(EVP_PKEY_CTX *pctx, const char file, ENGINE *e,
b4250010	19	OSSL_LIB_CTX libctx, const char propq);
f5cda4cb DSH	20	static int genpkey_cb(EVP_PKEY_CTX *ctx);
f5cda4cb DSH	21
7e1b7485 RS	22	typedef enum OPTION_choice {
	23	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	24	OPT_ENGINE, OPT_OUTFORM, OPT_OUT, OPT_PASS, OPT_PARAMFILE,
6bd4e3f2	25	OPT_ALGORITHM, OPT_PKEYOPT, OPT_GENPARAM, OPT_TEXT, OPT_CIPHER,
7c9a7cf1	26	OPT_CONFIG,
6bd4e3f2	27	OPT_PROV_ENUM
7e1b7485 RS	28	} OPTION_CHOICE;
7e1b7485 RS	29
44c83ebd	30	const OPTIONS genpkey_options[] = {
5388f986	31	OPT_SECTION("General"),
7e1b7485	32	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	33	#ifndef OPENSSL_NO_ENGINE
	34	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
	35	#endif
7e1b7485 RS	36	{"paramfile", OPT_PARAMFILE, '<', "Parameters file"},
	37	{"algorithm", OPT_ALGORITHM, 's', "The public key algorithm"},
	38	{"pkeyopt", OPT_PKEYOPT, 's',
	39	"Set the public key algorithm option as opt:value"},
7c9a7cf1	40	OPT_CONFIG_OPTION,
5388f986 RS	41
	42	OPT_SECTION("Output"),
	43	{"out", OPT_OUT, '>', "Output file"},
	44	{"outform", OPT_OUTFORM, 'F', "output format (DER or PEM)"},
	45	{"pass", OPT_PASS, 's', "Output file pass phrase source"},
7e1b7485 RS	46	{"genparam", OPT_GENPARAM, '-', "Generate parameters, not key"},
	47	{"text", OPT_TEXT, '-', "Print the in text"},
	48	{"", OPT_CIPHER, '-', "Cipher to use to encrypt the key"},
5388f986	49
6bd4e3f2 P	50	OPT_PROV_OPTIONS,
6bd4e3f2 P	51
9c3bcfa0	52	/* This is deliberately last. */
7e1b7485 RS	53	{OPT_HELP_STR, 1, 1,
	54	"Order of options may be important! See the documentation.\n"},
	55	{NULL}
	56	};
f5cda4cb	57
7e1b7485	58	int genpkey_main(int argc, char **argv)
0f113f3e	59	{
7c9a7cf1	60	CONF *conf = NULL;
0f113f3e	61	BIO in = NULL, out = NULL;
7e1b7485	62	ENGINE *e = NULL;
0f113f3e MC	63	EVP_PKEY *pkey = NULL;
0f113f3e MC	64	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	65	char outfile = NULL, passarg = NULL, pass = NULL, prog;
	66	const EVP_CIPHER *cipher = NULL;
	67	OPTION_CHOICE o;
	68	int outformat = FORMAT_PEM, text = 0, ret = 1, rv, do_param = 0;
3b061a00	69	int private = 0;
b4250010	70	OSSL_LIB_CTX *libctx = app_get0_libctx();
7e1b7485 RS	71
	72	prog = opt_init(argc, argv, genpkey_options);
	73	while ((o = opt_next()) != OPT_EOF) {
	74	switch (o) {
	75	case OPT_EOF:
	76	case OPT_ERR:
	77	opthelp:
	78	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	79	goto end;
	80	case OPT_HELP:
	81	ret = 0;
	82	opt_help(genpkey_options);
	83	goto end;
	84	case OPT_OUTFORM:
	85	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
	86	goto opthelp;
	87	break;
	88	case OPT_OUT:
	89	outfile = opt_arg();
	90	break;
7e1b7485 RS	91	case OPT_PASS:
	92	passarg = opt_arg();
	93	break;
7e1b7485 RS	94	case OPT_ENGINE:
	95	e = setup_engine(opt_arg(), 0);
	96	break;
7e1b7485	97	case OPT_PARAMFILE:
0f113f3e	98	if (do_param == 1)
7e1b7485	99	goto opthelp;
7dc67708	100	if (!init_keygen_file(&ctx, opt_arg(), e, libctx, app_get0_propq()))
0f113f3e	101	goto end;
7e1b7485 RS	102	break;
7e1b7485 RS	103	case OPT_ALGORITHM:
7dc67708	104	if (!init_gen_str(&ctx, opt_arg(), e, do_param, libctx, app_get0_propq()))
0f113f3e	105	goto end;
7e1b7485 RS	106	break;
	107	case OPT_PKEYOPT:
	108	if (ctx == NULL) {
	109	BIO_printf(bio_err, "%s: No keytype specified.\n", prog);
	110	goto opthelp;
	111	}
	112	if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
	113	BIO_printf(bio_err,
	114	"%s: Error setting %s parameter:\n",
	115	prog, opt_arg());
0f113f3e MC	116	ERR_print_errors(bio_err);
	117	goto end;
	118	}
7e1b7485 RS	119	break;
7e1b7485 RS	120	case OPT_GENPARAM:
f85a9d26 SL	121	if (ctx != NULL) {
	122	BIO_printf(bio_err,
	123	"%s: '-genparam' option must be set before"
	124	" the '-algorithm' option.\n", prog);
7e1b7485	125	goto opthelp;
f85a9d26	126	}
0f113f3e	127	do_param = 1;
7e1b7485 RS	128	break;
7e1b7485 RS	129	case OPT_TEXT:
0f113f3e	130	text = 1;
7e1b7485 RS	131	break;
	132	case OPT_CIPHER:
	133	if (!opt_cipher(opt_unknown(), &cipher)
	134	\|\| do_param == 1)
	135	goto opthelp;
49c9c1b3 DO	136	if (EVP_CIPHER_mode(cipher) == EVP_CIPH_GCM_MODE \|\|
	137	EVP_CIPHER_mode(cipher) == EVP_CIPH_CCM_MODE \|\|
	138	EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE \|\|
	139	EVP_CIPHER_mode(cipher) == EVP_CIPH_OCB_MODE) {
	140	BIO_printf(bio_err, "%s: cipher mode not supported\n", prog);
	141	goto end;
	142	}
6bd4e3f2	143	break;
7c9a7cf1 SL	144	case OPT_CONFIG:
	145	conf = app_load_config_modules(opt_arg());
	146	if (conf == NULL)
	147	goto end;
	148	break;
6bd4e3f2 P	149	case OPT_PROV_CASES:
	150	if (!opt_provider(o))
	151	goto end;
	152	break;
0f113f3e	153	}
0f113f3e	154	}
021410ea RS	155
021410ea RS	156	/* No extra arguments. */
7e1b7485	157	argc = opt_num_rest();
03358517 KR	158	if (argc != 0)
	159	goto opthelp;
	160
3b061a00	161	private = do_param ? 0 : 1;
0f113f3e	162
7e1b7485 RS	163	if (ctx == NULL)
7e1b7485 RS	164	goto opthelp;
0f113f3e	165
7e1b7485	166	if (!app_passwd(passarg, NULL, &pass, NULL)) {
0f113f3e MC	167	BIO_puts(bio_err, "Error getting password\n");
	168	goto end;
	169	}
	170
bdd58d98	171	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	172	if (out == NULL)
7e1b7485 RS	173	goto end;
0f113f3e MC	174
	175	EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
	176	EVP_PKEY_CTX_set_app_data(ctx, bio_err);
	177
	178	if (do_param) {
	179	if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) {
	180	BIO_puts(bio_err, "Error generating parameters\n");
	181	ERR_print_errors(bio_err);
	182	goto end;
	183	}
	184	} else {
	185	if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
	186	BIO_puts(bio_err, "Error generating key\n");
	187	ERR_print_errors(bio_err);
	188	goto end;
	189	}
	190	}
	191
2234212c	192	if (do_param) {
0f113f3e	193	rv = PEM_write_bio_Parameters(out, pkey);
2234212c	194	} else if (outformat == FORMAT_PEM) {
3b061a00	195	assert(private);
0f113f3e	196	rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass);
3b061a00 RS	197	} else if (outformat == FORMAT_ASN1) {
3b061a00 RS	198	assert(private);
0f113f3e	199	rv = i2d_PrivateKey_bio(out, pkey);
3b061a00	200	} else {
0f113f3e MC	201	BIO_printf(bio_err, "Bad format specified for key\n");
	202	goto end;
	203	}
	204
466d30c0 NT	205	ret = 0;
466d30c0 NT	206
0f113f3e MC	207	if (rv <= 0) {
	208	BIO_puts(bio_err, "Error writing key\n");
	209	ERR_print_errors(bio_err);
466d30c0	210	ret = 1;
0f113f3e MC	211	}
	212
	213	if (text) {
	214	if (do_param)
	215	rv = EVP_PKEY_print_params(out, pkey, 0, NULL);
	216	else
	217	rv = EVP_PKEY_print_private(out, pkey, 0, NULL);
	218
	219	if (rv <= 0) {
	220	BIO_puts(bio_err, "Error printing key\n");
	221	ERR_print_errors(bio_err);
466d30c0	222	ret = 1;
0f113f3e MC	223	}
	224	}
	225
0f113f3e	226	end:
c5ba2d99 RS	227	EVP_PKEY_free(pkey);
c5ba2d99 RS	228	EVP_PKEY_CTX_free(ctx);
ca3a82c3	229	BIO_free_all(out);
0f113f3e	230	BIO_free(in);
dd1abd44	231	release_engine(e);
b548a1f1	232	OPENSSL_free(pass);
7c9a7cf1	233	NCONF_free(conf);
0f113f3e MC	234	return ret;
0f113f3e MC	235	}
f5cda4cb	236
7c9a7cf1	237	static int init_keygen_file(EVP_PKEY_CTX *pctx, const char file, ENGINE *e,
b4250010	238	OSSL_LIB_CTX libctx, const char propq)
0f113f3e MC	239	{
	240	BIO *pbio;
	241	EVP_PKEY *pkey = NULL;
	242	EVP_PKEY_CTX *ctx = NULL;
	243	if (*pctx) {
7e1b7485	244	BIO_puts(bio_err, "Parameters already set!\n");
0f113f3e MC	245	return 0;
	246	}
	247
	248	pbio = BIO_new_file(file, "r");
12a765a5	249	if (pbio == NULL) {
7e1b7485	250	BIO_printf(bio_err, "Can't open parameter file %s\n", file);
0f113f3e MC	251	return 0;
	252	}
	253
3d63348a	254	pkey = PEM_read_bio_Parameters_ex(pbio, NULL, libctx, propq);
0f113f3e MC	255	BIO_free(pbio);
0f113f3e MC	256
12a765a5	257	if (pkey == NULL) {
0f113f3e MC	258	BIO_printf(bio_err, "Error reading parameter file %s\n", file);
	259	return 0;
	260	}
	261
7c9a7cf1 SL	262	if (e != NULL)
	263	ctx = EVP_PKEY_CTX_new(pkey, e);
	264	else
	265	ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
96487cdd	266	if (ctx == NULL)
0f113f3e MC	267	goto err;
	268	if (EVP_PKEY_keygen_init(ctx) <= 0)
	269	goto err;
	270	EVP_PKEY_free(pkey);
	271	*pctx = ctx;
	272	return 1;
	273
	274	err:
7e1b7485 RS	275	BIO_puts(bio_err, "Error initializing context\n");
7e1b7485 RS	276	ERR_print_errors(bio_err);
c5ba2d99 RS	277	EVP_PKEY_CTX_free(ctx);
c5ba2d99 RS	278	EVP_PKEY_free(pkey);
0f113f3e MC	279	return 0;
	280
	281	}
f5cda4cb	282
7e1b7485	283	int init_gen_str(EVP_PKEY_CTX **pctx,
7c9a7cf1	284	const char algname, ENGINE e, int do_param,
b4250010	285	OSSL_LIB_CTX libctx, const char propq)
0f113f3e MC	286	{
0f113f3e MC	287	EVP_PKEY_CTX *ctx = NULL;
0f113f3e	288	int pkey_id;
01b8b3c7	289
0f113f3e	290	if (*pctx) {
7e1b7485	291	BIO_puts(bio_err, "Algorithm already set!\n");
0f113f3e MC	292	return 0;
0f113f3e MC	293	}
b3c6a331	294
0f386f2e MC	295	pkey_id = get_legacy_pkey_id(libctx, algname, e);
0f386f2e MC	296	if (pkey_id != NID_undef)
7c9a7cf1	297	ctx = EVP_PKEY_CTX_new_id(pkey_id, e);
0f386f2e	298	else
7c9a7cf1	299	ctx = EVP_PKEY_CTX_new_from_name(libctx, algname, propq);
0f113f3e	300
0f386f2e	301	if (ctx == NULL)
0f113f3e MC	302	goto err;
	303	if (do_param) {
	304	if (EVP_PKEY_paramgen_init(ctx) <= 0)
	305	goto err;
	306	} else {
	307	if (EVP_PKEY_keygen_init(ctx) <= 0)
	308	goto err;
	309	}
	310
	311	*pctx = ctx;
	312	return 1;
	313
	314	err:
7e1b7485 RS	315	BIO_printf(bio_err, "Error initializing %s context\n", algname);
7e1b7485 RS	316	ERR_print_errors(bio_err);
c5ba2d99	317	EVP_PKEY_CTX_free(ctx);
0f113f3e MC	318	return 0;
	319
	320	}
f5cda4cb DSH	321
f5cda4cb DSH	322	static int genpkey_cb(EVP_PKEY_CTX *ctx)
0f113f3e MC	323	{
	324	char c = '*';
	325	BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
	326	int p;
	327	p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
	328	if (p == 0)
	329	c = '.';
	330	if (p == 1)
	331	c = '+';
	332	if (p == 2)
	333	c = '*';
	334	if (p == 3)
	335	c = '\n';
	336	BIO_write(b, &c, 1);
	337	(void)BIO_flush(b);
	338	return 1;
	339	}