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

/*
 * Copyright 1995-2021 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 <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>

#ifndef OPENSSL_NO_RC4
# define DEFAULT_PVK_ENCR_STRENGTH      2
#else
# define DEFAULT_PVK_ENCR_STRENGTH      0
#endif

typedef enum OPTION_choice {
    OPT_COMMON,
    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"},

#ifndef OPENSSL_NO_RC4
    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"},
#endif

    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;
    EVP_CIPHER *enc = NULL;
    char *infile = NULL, *outfile = NULL, *ciphername = NULL, *prog;
    char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
    int private = 0;
    int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, text = 0, check = 0;
    int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
    int pvk_encr = DEFAULT_PVK_ENCR_STRENGTH;
    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:
            ciphername = opt_unknown();
            break;
        case OPT_PROV_CASES:
            if (!opt_provider(o))
                goto end;
            break;
        case OPT_TRADITIONAL:
            traditional = 1;
            break;
        }
    }

    /* No extra arguments. */
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    if (ciphername != NULL) {
        if (!opt_cipher(ciphername, &enc))
            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 = FORMAT_UNDEF;

        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(bio_err, "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) {
            BIO_printf(bio_err, "RSA key not ok\n");
            ERR_print_errors(bio_err);
        } 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 = "pkcs1"; /* "type-specific" would work too */
            else
                output_structure = "SubjectPublicKeyInfo";
        } 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_for_pkey(pkey, selection,
                                         output_type, output_structure,
                                         NULL);
    if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
        BIO_printf(bio_err, "%s format not supported\n", output_type);
        goto end;
    }

    /* Passphrase setup */
    if (enc != NULL)
        OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);

    /* Default passphrase prompter */
    if (enc != NULL || outformat == FORMAT_PVK) {
        OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
        if (passout != NULL)
            /* When passout given, override the passphrase prompter */
            OSSL_ENCODER_CTX_set_passphrase(ectx,
                                            (const unsigned char *)passout,
                                            strlen(passout));
    }

    /* 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);
    EVP_CIPHER_free(enc);
    OPENSSL_free(passin);
    OPENSSL_free(passout);
    return ret;
}
Commit	Line	Data
846e33c7	1	/*
a28d06f3	2	* Copyright 1995-2021 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
47422549 P	33	#ifndef OPENSSL_NO_RC4
	34	# define DEFAULT_PVK_ENCR_STRENGTH 2
	35	#else
	36	# define DEFAULT_PVK_ENCR_STRENGTH 0
	37	#endif
	38
7e1b7485	39	typedef enum OPTION_choice {
b0f96018	40	OPT_COMMON,
7e1b7485 RS	41	OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
7e1b7485 RS	42	OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
e7917e38 F	43	OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
	44	/* Do not change the order here; see case statements below */
	45	OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
6bd4e3f2	46	OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
10203a34	47	OPT_PROV_ENUM, OPT_TRADITIONAL
7e1b7485 RS	48	} OPTION_CHOICE;
7e1b7485 RS	49
44c83ebd	50	const OPTIONS rsa_options[] = {
5388f986	51	OPT_SECTION("General"),
7e1b7485	52	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	53	{"check", OPT_CHECK, '-', "Verify key consistency"},
5388f986 RS	54	{"", OPT_CIPHER, '-', "Any supported cipher"},
1ae56f2f	55	#ifndef OPENSSL_NO_ENGINE
5388f986	56	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
1ae56f2f	57	#endif
5388f986 RS	58
5388f986 RS	59	OPT_SECTION("Input"),
dd958974	60	{"in", OPT_IN, 's', "Input file"},
6d382c74	61	{"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE"},
7e1b7485	62	{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
bc2f5803	63	{"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
5388f986 RS	64	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
	65
	66	OPT_SECTION("Output"),
	67	{"out", OPT_OUT, '>', "Output file"},
	68	{"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
	69	{"pubout", OPT_PUBOUT, '-', "Output a public key"},
bc2f5803	70	{"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
5388f986	71	{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485 RS	72	{"noout", OPT_NOOUT, '-', "Don't print key out"},
	73	{"text", OPT_TEXT, '-', "Print the key in text"},
	74	{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
10203a34 KR	75	{"traditional", OPT_TRADITIONAL, '-',
10203a34 KR	76	"Use traditional format for private keys"},
5388f986	77
47422549	78	#ifndef OPENSSL_NO_RC4
5388f986	79	OPT_SECTION("PVK"),
e7917e38 F	80	{"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
	81	{"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
	82	{"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
47422549	83	#endif
6bd4e3f2 P	84
6bd4e3f2 P	85	OPT_PROV_OPTIONS,
7e1b7485 RS	86	{NULL}
7e1b7485 RS	87	};
667ac4ec	88
7e1b7485	89	int rsa_main(int argc, char **argv)
0f113f3e MC	90	{
0f113f3e MC	91	ENGINE *e = NULL;
7e1b7485	92	BIO *out = NULL;
54affb77 P	93	EVP_PKEY *pkey = NULL;
54affb77 P	94	EVP_PKEY_CTX *pctx;
606a417f	95	EVP_CIPHER *enc = NULL;
03bbd346	96	char infile = NULL, outfile = NULL, ciphername = NULL, prog;
7e1b7485	97	char passin = NULL, passout = NULL, passinarg = NULL, passoutarg = NULL;
d7e498ac	98	int private = 0;
d382e796	99	int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, text = 0, check = 0;
83ae8124	100	int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
47422549	101	int pvk_encr = DEFAULT_PVK_ENCR_STRENGTH;
7e1b7485	102	OPTION_CHOICE o;
10203a34	103	int traditional = 0;
d7e498ac RL	104	const char *output_type = NULL;
	105	const char *output_structure = NULL;
	106	int selection = 0;
	107	OSSL_ENCODER_CTX *ectx = NULL;
7e1b7485 RS	108
	109	prog = opt_init(argc, argv, rsa_options);
	110	while ((o = opt_next()) != OPT_EOF) {
	111	switch (o) {
	112	case OPT_EOF:
	113	case OPT_ERR:
7e1b7485 RS	114	opthelp:
	115	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	116	goto end;
	117	case OPT_HELP:
	118	opt_help(rsa_options);
	119	ret = 0;
	120	goto end;
	121	case OPT_INFORM:
	122	if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
	123	goto opthelp;
	124	break;
	125	case OPT_IN:
	126	infile = opt_arg();
	127	break;
	128	case OPT_OUTFORM:
	129	if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
	130	goto opthelp;
	131	break;
	132	case OPT_OUT:
	133	outfile = opt_arg();
	134	break;
	135	case OPT_PASSIN:
	136	passinarg = opt_arg();
	137	break;
	138	case OPT_PASSOUT:
	139	passoutarg = opt_arg();
	140	break;
	141	case OPT_ENGINE:
333b070e	142	e = setup_engine(opt_arg(), 0);
7e1b7485 RS	143	break;
7e1b7485 RS	144	case OPT_PUBIN:
0f113f3e	145	pubin = 1;
7e1b7485 RS	146	break;
7e1b7485 RS	147	case OPT_PUBOUT:
0f113f3e	148	pubout = 1;
7e1b7485 RS	149	break;
7e1b7485 RS	150	case OPT_RSAPUBKEY_IN:
0f113f3e	151	pubin = 2;
7e1b7485 RS	152	break;
7e1b7485 RS	153	case OPT_RSAPUBKEY_OUT:
0f113f3e	154	pubout = 2;
7e1b7485	155	break;
e7917e38 F	156	case OPT_PVK_STRONG: /* pvk_encr:= 2 */
	157	case OPT_PVK_WEAK: /* pvk_encr:= 1 */
	158	case OPT_PVK_NONE: /* pvk_encr:= 0 */
e7917e38	159	pvk_encr = (o - OPT_PVK_NONE);
e7917e38	160	break;
7e1b7485	161	case OPT_NOOUT:
0f113f3e	162	noout = 1;
7e1b7485 RS	163	break;
7e1b7485 RS	164	case OPT_TEXT:
0f113f3e	165	text = 1;
7e1b7485 RS	166	break;
7e1b7485 RS	167	case OPT_MODULUS:
0f113f3e	168	modulus = 1;
7e1b7485 RS	169	break;
7e1b7485 RS	170	case OPT_CHECK:
0f113f3e	171	check = 1;
7e1b7485 RS	172	break;
7e1b7485 RS	173	case OPT_CIPHER:
03bbd346	174	ciphername = opt_unknown();
0f113f3e	175	break;
6bd4e3f2 P	176	case OPT_PROV_CASES:
	177	if (!opt_provider(o))
	178	goto end;
	179	break;
10203a34 KR	180	case OPT_TRADITIONAL:
	181	traditional = 1;
	182	break;
0f113f3e	183	}
0f113f3e	184	}
021410ea RS	185
021410ea RS	186	/* No extra arguments. */
7e1b7485	187	argc = opt_num_rest();
03358517 KR	188	if (argc != 0)
	189	goto opthelp;
	190
03bbd346 RS	191	if (ciphername != NULL) {
	192	if (!opt_cipher(ciphername, &enc))
	193	goto opthelp;
	194	}
7eff6aa0	195	private = (text && !pubin) \|\| (!pubout && !noout) ? 1 : 0;
0f113f3e	196
7e1b7485	197	if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e MC	198	BIO_printf(bio_err, "Error getting passwords\n");
	199	goto end;
	200	}
0f113f3e MC	201	if (check && pubin) {
	202	BIO_printf(bio_err, "Only private keys can be checked\n");
	203	goto end;
	204	}
	205
54affb77	206	if (pubin) {
d382e796	207	int tmpformat = FORMAT_UNDEF;
0f113f3e	208
54affb77 P	209	if (pubin == 2) {
	210	if (informat == FORMAT_PEM)
	211	tmpformat = FORMAT_PEMRSA;
	212	else if (informat == FORMAT_ASN1)
	213	tmpformat = FORMAT_ASN1RSA;
2234212c	214	} else {
54affb77	215	tmpformat = informat;
2234212c	216	}
0f113f3e	217
50eb2a50	218	pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
54affb77	219	} else {
50eb2a50	220	pkey = load_key(infile, informat, 1, passin, e, "private key");
0f113f3e MC	221	}
0f113f3e MC	222
d7e498ac	223	if (pkey == NULL) {
0f113f3e MC	224	ERR_print_errors(bio_err);
	225	goto end;
	226	}
d7e498ac RL	227	if (!EVP_PKEY_is_a(pkey, "RSA")) {
	228	BIO_printf(bio_err, "Not an RSA key\n");
	229	goto end;
	230	}
0f113f3e	231
bdd58d98	232	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	233	if (out == NULL)
7e1b7485 RS	234	goto end;
0f113f3e	235
3b061a00	236	if (text) {
7eff6aa0	237	assert(pubin \|\| private);
54affb77 P	238	if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
54affb77 P	239	\|\| (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
0f113f3e MC	240	perror(outfile);
	241	ERR_print_errors(bio_err);
	242	goto end;
	243	}
3b061a00	244	}
0f113f3e MC	245
0f113f3e MC	246	if (modulus) {
d7e498ac RL	247	BIGNUM *n = NULL;
	248
	249	/* Every RSA key has an 'n' */
	250	EVP_PKEY_get_bn_param(pkey, "n", &n);
0f113f3e	251	BIO_printf(out, "Modulus=");
9862e9aa	252	BN_print(out, n);
0f113f3e	253	BIO_printf(out, "\n");
d7e498ac	254	BN_free(n);
0f113f3e MC	255	}
	256
	257	if (check) {
54affb77 P	258	int r;
	259
	260	pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
	261	if (pctx == NULL) {
7f90026b	262	BIO_printf(bio_err, "RSA unable to create PKEY context\n");
54affb77 P	263	ERR_print_errors(bio_err);
	264	goto end;
	265	}
	266	r = EVP_PKEY_check(pctx);
	267	EVP_PKEY_CTX_free(pctx);
0f113f3e	268
2234212c	269	if (r == 1) {
0f113f3e	270	BIO_printf(out, "RSA key ok\n");
2234212c	271	} else if (r == 0) {
7f90026b DDO	272	BIO_printf(bio_err, "RSA key not ok\n");
7f90026b DDO	273	ERR_print_errors(bio_err);
63db6b77	274	} else if (r == -1) {
0f113f3e MC	275	ERR_print_errors(bio_err);
	276	goto end;
	277	}
	278	}
	279
	280	if (noout) {
	281	ret = 0;
	282	goto end;
	283	}
	284	BIO_printf(bio_err, "writing RSA key\n");
d7e498ac RL	285
d7e498ac RL	286	/* Choose output type for the format */
0f113f3e	287	if (outformat == FORMAT_ASN1) {
d7e498ac	288	output_type = "DER";
2234212c	289	} else if (outformat == FORMAT_PEM) {
d7e498ac RL	290	output_type = "PEM";
	291	} else if (outformat == FORMAT_MSBLOB) {
	292	output_type = "MSBLOB";
	293	} else if (outformat == FORMAT_PVK) {
	294	if (pubin) {
	295	BIO_printf(bio_err, "PVK form impossible with public key input\n");
	296	goto end;
	297	}
	298	output_type = "PVK";
	299	} else {
	300	BIO_printf(bio_err, "bad output format specified for outfile\n");
	301	goto end;
	302	}
	303
	304	/* Select what you want in the output */
	305	if (pubout \|\| pubin) {
	306	selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
	307	} else {
	308	assert(private);
	309	selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
	310	\| OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
	311	}
	312
	313	/* For DER based output, select the desired output structure */
	314	if (outformat == FORMAT_ASN1 \|\| outformat == FORMAT_PEM) {
0f113f3e MC	315	if (pubout \|\| pubin) {
0f113f3e MC	316	if (pubout == 2)
d7e498ac	317	output_structure = "pkcs1"; /* "type-specific" would work too */
542b8488 RL	318	else
542b8488 RL	319	output_structure = "SubjectPublicKeyInfo";
3b061a00 RS	320	} else {
3b061a00 RS	321	assert(private);
d7e498ac RL	322	if (traditional)
	323	output_structure = "pkcs1"; /* "type-specific" would work too */
	324	else
	325	output_structure = "pkcs8";
3b061a00	326	}
d7e498ac	327	}
d896b79b	328
d7e498ac	329	/* Now, perform the encoding */
fe75766c TM	330	ectx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
	331	output_type, output_structure,
	332	NULL);
d7e498ac RL	333	if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
	334	BIO_printf(bio_err, "%s format not supported\n", output_type);
	335	goto end;
	336	}
	337
5432d827 RL	338	/* Passphrase setup */
5432d827 RL	339	if (enc != NULL)
ed576acd	340	OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);
5432d827 RL	341
	342	/* Default passphrase prompter */
	343	if (enc != NULL \|\| outformat == FORMAT_PVK) {
	344	OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
	345	if (passout != NULL)
	346	/* When passout given, override the passphrase prompter */
	347	OSSL_ENCODER_CTX_set_passphrase(ectx,
	348	(const unsigned char *)passout,
	349	strlen(passout));
	350	}
	351
d7e498ac RL	352	/* PVK is a bit special... */
	353	if (outformat == FORMAT_PVK) {
	354	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
	355
	356	params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
	357	if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
	358	BIO_printf(bio_err, "invalid PVK encryption level\n");
b6c68982	359	goto end;
3b061a00	360	}
0f113f3e	361	}
d7e498ac RL	362
d7e498ac RL	363	if (!OSSL_ENCODER_to_bio(ectx, out)) {
0f113f3e MC	364	BIO_printf(bio_err, "unable to write key\n");
0f113f3e MC	365	ERR_print_errors(bio_err);
d7e498ac	366	goto end;
2234212c	367	}
d7e498ac	368	ret = 0;
0f113f3e	369	end:
d7e498ac	370	OSSL_ENCODER_CTX_free(ectx);
dd1abd44	371	release_engine(e);
ca3a82c3	372	BIO_free_all(out);
54affb77	373	EVP_PKEY_free(pkey);
606a417f	374	EVP_CIPHER_free(enc);
b548a1f1 RS	375	OPENSSL_free(passin);
b548a1f1 RS	376	OPENSSL_free(passout);
26a7d938	377	return ret;
0f113f3e	378	}