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

/*
 * Copyright 1995-2020 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 <openssl/opensslconf.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "apps.h"
#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/bn.h>
#include <openssl/encoder.h>

/*
 * TODO: This include is to get OSSL_KEYMGMT_SELECT_*, which feels a bit
 * much just for those macros...  they might serve better as EVP macros.
 */
#include <openssl/core_dispatch.h>

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
    OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
    OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
    /* Do not change the order here; see case statements below */
    OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
    OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
    OPT_PROV_ENUM, OPT_TRADITIONAL
} OPTION_CHOICE;

const OPTIONS rsa_options[] = {
    OPT_SECTION("General"),
    {"help", OPT_HELP, '-', "Display this summary"},
    {"check", OPT_CHECK, '-', "Verify key consistency"},
    {"", OPT_CIPHER, '-', "Any supported cipher"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif

    OPT_SECTION("Input"),
    {"in", OPT_IN, 's', "Input file"},
    {"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE"},
    {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
    {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},

    OPT_SECTION("Output"),
    {"out", OPT_OUT, '>', "Output file"},
    {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
    {"pubout", OPT_PUBOUT, '-', "Output a public key"},
    {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
    {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
    {"noout", OPT_NOOUT, '-', "Don't print key out"},
    {"text", OPT_TEXT, '-', "Print the key in text"},
    {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
    {"traditional", OPT_TRADITIONAL, '-',
     "Use traditional format for private keys"},

    OPT_SECTION("PVK"),
    {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
    {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
    {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},

    OPT_PROV_OPTIONS,
    {NULL}
};

int rsa_main(int argc, char **argv)
{
    ENGINE *e = NULL;
    BIO *out = NULL;
    EVP_PKEY *pkey = NULL;
    EVP_PKEY_CTX *pctx;
    const EVP_CIPHER *enc = NULL;
    char *infile = NULL, *outfile = NULL, *prog;
    char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
    int private = 0;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
    int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
    int pvk_encr = 2;
    OPTION_CHOICE o;
    int traditional = 0;
    const char *output_type = NULL;
    const char *output_structure = NULL;
    int selection = 0;
    OSSL_ENCODER_CTX *ectx = NULL;

    prog = opt_init(argc, argv, rsa_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:
            opt_help(rsa_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_PUBIN:
            pubin = 1;
            break;
        case OPT_PUBOUT:
            pubout = 1;
            break;
        case OPT_RSAPUBKEY_IN:
            pubin = 2;
            break;
        case OPT_RSAPUBKEY_OUT:
            pubout = 2;
            break;
        case OPT_PVK_STRONG:    /* pvk_encr:= 2 */
        case OPT_PVK_WEAK:      /* pvk_encr:= 1 */
        case OPT_PVK_NONE:      /* pvk_encr:= 0 */
            pvk_encr = (o - OPT_PVK_NONE);
            break;
        case OPT_NOOUT:
            noout = 1;
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_MODULUS:
            modulus = 1;
            break;
        case OPT_CHECK:
            check = 1;
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &enc))
                goto opthelp;
            break;
        case OPT_PROV_CASES:
            if (!opt_provider(o))
                goto end;
            break;
        case OPT_TRADITIONAL:
            traditional = 1;
            break;
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;

    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
        BIO_printf(bio_err, "Error getting passwords\n");
        goto end;
    }
    if (check && pubin) {
        BIO_printf(bio_err, "Only private keys can be checked\n");
        goto end;
    }

    if (pubin) {
        int tmpformat = -1;

        if (pubin == 2) {
            if (informat == FORMAT_PEM)
                tmpformat = FORMAT_PEMRSA;
            else if (informat == FORMAT_ASN1)
                tmpformat = FORMAT_ASN1RSA;
        } else {
            tmpformat = informat;
        }

        pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
    } else {
        pkey = load_key(infile, informat, 1, passin, e, "private key");
    }

    if (pkey == NULL) {
        ERR_print_errors(bio_err);
        goto end;
    }
    if (!EVP_PKEY_is_a(pkey, "RSA")) {
        BIO_printf(bio_err, "Not an RSA key\n");
        goto end;
    }

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

    if (text) {
        assert(pubin || private);
        if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
            || (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
            perror(outfile);
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (modulus) {
        BIGNUM *n = NULL;

        /* Every RSA key has an 'n' */
        EVP_PKEY_get_bn_param(pkey, "n", &n);
        BIO_printf(out, "Modulus=");
        BN_print(out, n);
        BIO_printf(out, "\n");
        BN_free(n);
    }

    if (check) {
        int r;

        pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
        if (pctx == NULL) {
            BIO_printf(out, "RSA unable to create PKEY context\n");
            ERR_print_errors(bio_err);
            goto end;
        }
        r = EVP_PKEY_check(pctx);
        EVP_PKEY_CTX_free(pctx);

        if (r == 1) {
            BIO_printf(out, "RSA key ok\n");
        } else if (r == 0) {
            unsigned long err;

            while ((err = ERR_peek_error()) != 0 &&
                   ERR_GET_LIB(err) == ERR_LIB_RSA &&
                   ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
                BIO_printf(out, "RSA key error: %s\n",
                           ERR_reason_error_string(err));
                ERR_get_error(); /* remove err from error stack */
            }
        } else if (r == -1) {
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (noout) {
        ret = 0;
        goto end;
    }
    BIO_printf(bio_err, "writing RSA key\n");

    /* Choose output type for the format */
    if (outformat == FORMAT_ASN1) {
        output_type = "DER";
    } else if (outformat == FORMAT_PEM) {
        output_type = "PEM";
    } else if (outformat == FORMAT_MSBLOB) {
        output_type = "MSBLOB";
    } else if (outformat == FORMAT_PVK) {
        if (pubin) {
            BIO_printf(bio_err, "PVK form impossible with public key input\n");
            goto end;
        }
        output_type = "PVK";
    } else {
        BIO_printf(bio_err, "bad output format specified for outfile\n");
        goto end;
    }

    /* Select what you want in the output */
    if (pubout || pubin) {
        selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
    } else {
        assert(private);
        selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
                     | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
    }

    /* For DER based output, select the desired output structure */
    if (outformat == FORMAT_ASN1 || outformat == FORMAT_PEM) {
        if (pubout || pubin) {
            if (pubout == 2)
                output_structure = "SubjectPublicKeyInfo";
            else
                output_structure = "pkcs1"; /* "type-specific" would work too */
        } else {
            assert(private);
            if (traditional)
                output_structure = "pkcs1"; /* "type-specific" would work too */
            else
                output_structure = "pkcs8";
        }
    }

    /* Now, perform the encoding */
    ectx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection,
                                            output_type, output_structure,
                                            NULL, NULL);
    if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
        BIO_printf(bio_err, "%s format not supported\n", output_type);
        goto end;
    }

    /* PVK is a bit special... */
    if (outformat == FORMAT_PVK) {
        OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };

        params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
        if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
            BIO_printf(bio_err, "invalid PVK encryption level\n");
            goto end;
        }
    }

    if (!OSSL_ENCODER_to_bio(ectx, out)) {
        BIO_printf(bio_err, "unable to write key\n");
        ERR_print_errors(bio_err);
        goto end;
    }
    ret = 0;
 end:
    OSSL_ENCODER_CTX_free(ectx);
    release_engine(e);
    BIO_free_all(out);
    EVP_PKEY_free(pkey);
    OPENSSL_free(passin);
    OPENSSL_free(passout);
    return ret;
}
Commit	Line	Data
846e33c7	1	/*
33388b44	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	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
7e1b7485	8	*/
d02b48c6	9
3eeaab4b	10	#include <openssl/opensslconf.h>
effaf4de	11
1ae56f2f RS	12	#include <stdio.h>
	13	#include <stdlib.h>
	14	#include <string.h>
	15	#include <time.h>
	16	#include "apps.h"
	17	#include "progs.h"
	18	#include <openssl/bio.h>
	19	#include <openssl/err.h>
	20	#include <openssl/rsa.h>
	21	#include <openssl/evp.h>
	22	#include <openssl/x509.h>
	23	#include <openssl/pem.h>
	24	#include <openssl/bn.h>
d7e498ac RL	25	#include <openssl/encoder.h>
	26
	27	/*
	28	* TODO: This include is to get OSSL_KEYMGMT_SELECT_*, which feels a bit
	29	* much just for those macros... they might serve better as EVP macros.
	30	*/
	31	#include <openssl/core_dispatch.h>
0f113f3e	32
7e1b7485 RS	33	typedef enum OPTION_choice {
	34	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	35	OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
	36	OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
e7917e38 F	37	OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
	38	/* Do not change the order here; see case statements below */
	39	OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
6bd4e3f2	40	OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
10203a34	41	OPT_PROV_ENUM, OPT_TRADITIONAL
7e1b7485 RS	42	} OPTION_CHOICE;
7e1b7485 RS	43
44c83ebd	44	const OPTIONS rsa_options[] = {
5388f986	45	OPT_SECTION("General"),
7e1b7485	46	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	47	{"check", OPT_CHECK, '-', "Verify key consistency"},
5388f986 RS	48	{"", OPT_CIPHER, '-', "Any supported cipher"},
1ae56f2f	49	#ifndef OPENSSL_NO_ENGINE
5388f986	50	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
1ae56f2f	51	#endif
5388f986 RS	52
5388f986 RS	53	OPT_SECTION("Input"),
dd958974	54	{"in", OPT_IN, 's', "Input file"},
6d382c74	55	{"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE"},
7e1b7485	56	{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
bc2f5803	57	{"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
5388f986 RS	58	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
	59
	60	OPT_SECTION("Output"),
	61	{"out", OPT_OUT, '>', "Output file"},
	62	{"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
	63	{"pubout", OPT_PUBOUT, '-', "Output a public key"},
bc2f5803	64	{"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
5388f986	65	{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485 RS	66	{"noout", OPT_NOOUT, '-', "Don't print key out"},
	67	{"text", OPT_TEXT, '-', "Print the key in text"},
	68	{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
10203a34 KR	69	{"traditional", OPT_TRADITIONAL, '-',
10203a34 KR	70	"Use traditional format for private keys"},
5388f986	71
5388f986	72	OPT_SECTION("PVK"),
e7917e38 F	73	{"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
	74	{"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
	75	{"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
6bd4e3f2 P	76
6bd4e3f2 P	77	OPT_PROV_OPTIONS,
7e1b7485 RS	78	{NULL}
7e1b7485 RS	79	};
667ac4ec	80
7e1b7485	81	int rsa_main(int argc, char **argv)
0f113f3e MC	82	{
0f113f3e MC	83	ENGINE *e = NULL;
7e1b7485	84	BIO *out = NULL;
54affb77 P	85	EVP_PKEY *pkey = NULL;
54affb77 P	86	EVP_PKEY_CTX *pctx;
0f113f3e	87	const EVP_CIPHER *enc = NULL;
333b070e	88	char infile = NULL, outfile = NULL, *prog;
7e1b7485	89	char passin = NULL, passout = NULL, passinarg = NULL, passoutarg = NULL;
d7e498ac	90	int private = 0;
7e1b7485	91	int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
83ae8124	92	int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
83ae8124	93	int pvk_encr = 2;
7e1b7485	94	OPTION_CHOICE o;
10203a34	95	int traditional = 0;
d7e498ac RL	96	const char *output_type = NULL;
	97	const char *output_structure = NULL;
	98	int selection = 0;
	99	OSSL_ENCODER_CTX *ectx = NULL;
7e1b7485 RS	100
	101	prog = opt_init(argc, argv, rsa_options);
	102	while ((o = opt_next()) != OPT_EOF) {
	103	switch (o) {
	104	case OPT_EOF:
	105	case OPT_ERR:
7e1b7485 RS	106	opthelp:
	107	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	108	goto end;
	109	case OPT_HELP:
	110	opt_help(rsa_options);
	111	ret = 0;
	112	goto end;
	113	case OPT_INFORM:
	114	if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
	115	goto opthelp;
	116	break;
	117	case OPT_IN:
	118	infile = opt_arg();
	119	break;
	120	case OPT_OUTFORM:
	121	if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
	122	goto opthelp;
	123	break;
	124	case OPT_OUT:
	125	outfile = opt_arg();
	126	break;
	127	case OPT_PASSIN:
	128	passinarg = opt_arg();
	129	break;
	130	case OPT_PASSOUT:
	131	passoutarg = opt_arg();
	132	break;
	133	case OPT_ENGINE:
333b070e	134	e = setup_engine(opt_arg(), 0);
7e1b7485 RS	135	break;
7e1b7485 RS	136	case OPT_PUBIN:
0f113f3e	137	pubin = 1;
7e1b7485 RS	138	break;
7e1b7485 RS	139	case OPT_PUBOUT:
0f113f3e	140	pubout = 1;
7e1b7485 RS	141	break;
7e1b7485 RS	142	case OPT_RSAPUBKEY_IN:
0f113f3e	143	pubin = 2;
7e1b7485 RS	144	break;
7e1b7485 RS	145	case OPT_RSAPUBKEY_OUT:
0f113f3e	146	pubout = 2;
7e1b7485	147	break;
e7917e38 F	148	case OPT_PVK_STRONG: /* pvk_encr:= 2 */
	149	case OPT_PVK_WEAK: /* pvk_encr:= 1 */
	150	case OPT_PVK_NONE: /* pvk_encr:= 0 */
e7917e38	151	pvk_encr = (o - OPT_PVK_NONE);
e7917e38	152	break;
7e1b7485	153	case OPT_NOOUT:
0f113f3e	154	noout = 1;
7e1b7485 RS	155	break;
7e1b7485 RS	156	case OPT_TEXT:
0f113f3e	157	text = 1;
7e1b7485 RS	158	break;
7e1b7485 RS	159	case OPT_MODULUS:
0f113f3e	160	modulus = 1;
7e1b7485 RS	161	break;
7e1b7485 RS	162	case OPT_CHECK:
0f113f3e	163	check = 1;
7e1b7485 RS	164	break;
	165	case OPT_CIPHER:
	166	if (!opt_cipher(opt_unknown(), &enc))
	167	goto opthelp;
0f113f3e	168	break;
6bd4e3f2 P	169	case OPT_PROV_CASES:
	170	if (!opt_provider(o))
	171	goto end;
	172	break;
10203a34 KR	173	case OPT_TRADITIONAL:
	174	traditional = 1;
	175	break;
0f113f3e	176	}
0f113f3e	177	}
7e1b7485	178	argc = opt_num_rest();
03358517 KR	179	if (argc != 0)
	180	goto opthelp;
	181
7eff6aa0	182	private = (text && !pubin) \|\| (!pubout && !noout) ? 1 : 0;
0f113f3e	183
7e1b7485	184	if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e MC	185	BIO_printf(bio_err, "Error getting passwords\n");
	186	goto end;
	187	}
0f113f3e MC	188	if (check && pubin) {
	189	BIO_printf(bio_err, "Only private keys can be checked\n");
	190	goto end;
	191	}
	192
54affb77 P	193	if (pubin) {
54affb77 P	194	int tmpformat = -1;
0f113f3e	195
54affb77 P	196	if (pubin == 2) {
	197	if (informat == FORMAT_PEM)
	198	tmpformat = FORMAT_PEMRSA;
	199	else if (informat == FORMAT_ASN1)
	200	tmpformat = FORMAT_ASN1RSA;
2234212c	201	} else {
54affb77	202	tmpformat = informat;
2234212c	203	}
0f113f3e	204
50eb2a50	205	pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
54affb77	206	} else {
50eb2a50	207	pkey = load_key(infile, informat, 1, passin, e, "private key");
0f113f3e MC	208	}
0f113f3e MC	209
d7e498ac	210	if (pkey == NULL) {
0f113f3e MC	211	ERR_print_errors(bio_err);
	212	goto end;
	213	}
d7e498ac RL	214	if (!EVP_PKEY_is_a(pkey, "RSA")) {
	215	BIO_printf(bio_err, "Not an RSA key\n");
	216	goto end;
	217	}
0f113f3e	218
bdd58d98	219	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	220	if (out == NULL)
7e1b7485 RS	221	goto end;
0f113f3e	222
3b061a00	223	if (text) {
7eff6aa0	224	assert(pubin \|\| private);
54affb77 P	225	if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
54affb77 P	226	\|\| (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
0f113f3e MC	227	perror(outfile);
	228	ERR_print_errors(bio_err);
	229	goto end;
	230	}
3b061a00	231	}
0f113f3e MC	232
0f113f3e MC	233	if (modulus) {
d7e498ac RL	234	BIGNUM *n = NULL;
	235
	236	/* Every RSA key has an 'n' */
	237	EVP_PKEY_get_bn_param(pkey, "n", &n);
0f113f3e	238	BIO_printf(out, "Modulus=");
9862e9aa	239	BN_print(out, n);
0f113f3e	240	BIO_printf(out, "\n");
d7e498ac	241	BN_free(n);
0f113f3e MC	242	}
	243
	244	if (check) {
54affb77 P	245	int r;
	246
	247	pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
	248	if (pctx == NULL) {
	249	BIO_printf(out, "RSA unable to create PKEY context\n");
	250	ERR_print_errors(bio_err);
	251	goto end;
	252	}
	253	r = EVP_PKEY_check(pctx);
	254	EVP_PKEY_CTX_free(pctx);
0f113f3e	255
2234212c	256	if (r == 1) {
0f113f3e	257	BIO_printf(out, "RSA key ok\n");
2234212c	258	} else if (r == 0) {
0f113f3e MC	259	unsigned long err;
	260
	261	while ((err = ERR_peek_error()) != 0 &&
	262	ERR_GET_LIB(err) == ERR_LIB_RSA &&
0f113f3e MC	263	ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
	264	BIO_printf(out, "RSA key error: %s\n",
	265	ERR_reason_error_string(err));
67d4fee8	266	ERR_get_error(); /* remove err from error stack */
0f113f3e	267	}
63db6b77	268	} else if (r == -1) {
0f113f3e MC	269	ERR_print_errors(bio_err);
	270	goto end;
	271	}
	272	}
	273
	274	if (noout) {
	275	ret = 0;
	276	goto end;
	277	}
	278	BIO_printf(bio_err, "writing RSA key\n");
d7e498ac RL	279
d7e498ac RL	280	/* Choose output type for the format */
0f113f3e	281	if (outformat == FORMAT_ASN1) {
d7e498ac	282	output_type = "DER";
2234212c	283	} else if (outformat == FORMAT_PEM) {
d7e498ac RL	284	output_type = "PEM";
	285	} else if (outformat == FORMAT_MSBLOB) {
	286	output_type = "MSBLOB";
	287	} else if (outformat == FORMAT_PVK) {
	288	if (pubin) {
	289	BIO_printf(bio_err, "PVK form impossible with public key input\n");
	290	goto end;
	291	}
	292	output_type = "PVK";
	293	} else {
	294	BIO_printf(bio_err, "bad output format specified for outfile\n");
	295	goto end;
	296	}
	297
	298	/* Select what you want in the output */
	299	if (pubout \|\| pubin) {
	300	selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
	301	} else {
	302	assert(private);
	303	selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
	304	\| OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
	305	}
	306
	307	/* For DER based output, select the desired output structure */
	308	if (outformat == FORMAT_ASN1 \|\| outformat == FORMAT_PEM) {
0f113f3e MC	309	if (pubout \|\| pubin) {
0f113f3e MC	310	if (pubout == 2)
d7e498ac	311	output_structure = "SubjectPublicKeyInfo";
0f113f3e	312	else
d7e498ac	313	output_structure = "pkcs1"; /* "type-specific" would work too */
3b061a00 RS	314	} else {
3b061a00 RS	315	assert(private);
d7e498ac RL	316	if (traditional)
	317	output_structure = "pkcs1"; /* "type-specific" would work too */
	318	else
	319	output_structure = "pkcs8";
3b061a00	320	}
d7e498ac	321	}
d896b79b	322
d7e498ac RL	323	/* Now, perform the encoding */
	324	ectx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection,
	325	output_type, output_structure,
	326	NULL, NULL);
	327	if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
	328	BIO_printf(bio_err, "%s format not supported\n", output_type);
	329	goto end;
	330	}
	331
	332	/* PVK is a bit special... */
	333	if (outformat == FORMAT_PVK) {
	334	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
	335
	336	params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
	337	if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
	338	BIO_printf(bio_err, "invalid PVK encryption level\n");
b6c68982	339	goto end;
3b061a00	340	}
0f113f3e	341	}
d7e498ac RL	342
d7e498ac RL	343	if (!OSSL_ENCODER_to_bio(ectx, out)) {
0f113f3e MC	344	BIO_printf(bio_err, "unable to write key\n");
0f113f3e MC	345	ERR_print_errors(bio_err);
d7e498ac	346	goto end;
2234212c	347	}
d7e498ac	348	ret = 0;
0f113f3e	349	end:
d7e498ac	350	OSSL_ENCODER_CTX_free(ectx);
dd1abd44	351	release_engine(e);
ca3a82c3	352	BIO_free_all(out);
54affb77	353	EVP_PKEY_free(pkey);
b548a1f1 RS	354	OPENSSL_free(passin);
b548a1f1 RS	355	OPENSSL_free(passout);
26a7d938	356	return ret;
0f113f3e	357	}