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

/*
 * Copyright 1995-2023 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
 */

/* Necessary for legacy RSA public key export */
#define OPENSSL_SUPPRESS_DEPRECATED

#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>

/*
 * 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}
};

static int try_legacy_encoding(EVP_PKEY *pkey, int outformat, int pubout,
                               BIO *out)
{
    int ret = 0;
#ifndef OPENSSL_NO_DEPRECATED_3_0
    const RSA *rsa = EVP_PKEY_get0_RSA(pkey);

    if (rsa == NULL)
        return 0;

    if (outformat == FORMAT_ASN1) {
        if (pubout == 2)
            ret = i2d_RSAPublicKey_bio(out, rsa) > 0;
        else
            ret = i2d_RSA_PUBKEY_bio(out, rsa) > 0;
    } else if (outformat == FORMAT_PEM) {
        if (pubout == 2)
            ret = PEM_write_bio_RSAPublicKey(out, rsa) > 0;
        else
            ret = PEM_write_bio_RSA_PUBKEY(out, rsa) > 0;
# ifndef OPENSSL_NO_DSA
    } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
        ret = i2b_PublicKey_bio(out, pkey) > 0;
# endif
    }
#endif

    return ret;
}

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;

    opt_set_unknown_name("cipher");
    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. */
    if (!opt_check_rest_arg(NULL))
        goto opthelp;

    if (!opt_cipher(ciphername, &enc))
        goto opthelp;
    private = (text && !pubin) || (!pubout && !noout);

    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") && !EVP_PKEY_is_a(pkey, "RSA-PSS")) {
        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 < 0) {
            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 = "PrivateKeyInfo";
        }
    }

    /* 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) {
        if ((!pubout && !pubin)
            || !try_legacy_encoding(pkey, outformat, pubout, out))
            BIO_printf(bio_err, "%s format not supported\n", output_type);
        else
            ret = 0;
        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	/*
da1c088f	2	* Copyright 1995-2023 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
94736c3a TM	10	/* Necessary for legacy RSA public key export */
	11	#define OPENSSL_SUPPRESS_DEPRECATED
	12
3eeaab4b	13	#include <openssl/opensslconf.h>
effaf4de	14
1ae56f2f RS	15	#include <stdio.h>
	16	#include <stdlib.h>
	17	#include <string.h>
	18	#include <time.h>
	19	#include "apps.h"
	20	#include "progs.h"
	21	#include <openssl/bio.h>
	22	#include <openssl/err.h>
	23	#include <openssl/rsa.h>
	24	#include <openssl/evp.h>
	25	#include <openssl/x509.h>
	26	#include <openssl/pem.h>
	27	#include <openssl/bn.h>
d7e498ac RL	28	#include <openssl/encoder.h>
	29
	30	/*
db70dc2c	31	* This include is to get OSSL_KEYMGMT_SELECT_*, which feels a bit
d7e498ac RL	32	* much just for those macros... they might serve better as EVP macros.
	33	*/
	34	#include <openssl/core_dispatch.h>
0f113f3e	35
47422549 P	36	#ifndef OPENSSL_NO_RC4
	37	# define DEFAULT_PVK_ENCR_STRENGTH 2
	38	#else
	39	# define DEFAULT_PVK_ENCR_STRENGTH 0
	40	#endif
	41
7e1b7485	42	typedef enum OPTION_choice {
b0f96018	43	OPT_COMMON,
7e1b7485 RS	44	OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
7e1b7485 RS	45	OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
e7917e38 F	46	OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
	47	/* Do not change the order here; see case statements below */
	48	OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
6bd4e3f2	49	OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
10203a34	50	OPT_PROV_ENUM, OPT_TRADITIONAL
7e1b7485 RS	51	} OPTION_CHOICE;
7e1b7485 RS	52
44c83ebd	53	const OPTIONS rsa_options[] = {
5388f986	54	OPT_SECTION("General"),
7e1b7485	55	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	56	{"check", OPT_CHECK, '-', "Verify key consistency"},
5388f986 RS	57	{"", OPT_CIPHER, '-', "Any supported cipher"},
1ae56f2f	58	#ifndef OPENSSL_NO_ENGINE
5388f986	59	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
1ae56f2f	60	#endif
5388f986 RS	61
5388f986 RS	62	OPT_SECTION("Input"),
dd958974	63	{"in", OPT_IN, 's', "Input file"},
3c1f8fb1	64	{"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE)"},
7e1b7485	65	{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
bc2f5803	66	{"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
5388f986 RS	67	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
	68
	69	OPT_SECTION("Output"),
	70	{"out", OPT_OUT, '>', "Output file"},
	71	{"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
	72	{"pubout", OPT_PUBOUT, '-', "Output a public key"},
bc2f5803	73	{"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
5388f986	74	{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485 RS	75	{"noout", OPT_NOOUT, '-', "Don't print key out"},
	76	{"text", OPT_TEXT, '-', "Print the key in text"},
	77	{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
10203a34 KR	78	{"traditional", OPT_TRADITIONAL, '-',
10203a34 KR	79	"Use traditional format for private keys"},
5388f986	80
47422549	81	#ifndef OPENSSL_NO_RC4
5388f986	82	OPT_SECTION("PVK"),
e7917e38 F	83	{"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
	84	{"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
	85	{"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
47422549	86	#endif
6bd4e3f2 P	87
6bd4e3f2 P	88	OPT_PROV_OPTIONS,
7e1b7485 RS	89	{NULL}
7e1b7485 RS	90	};
667ac4ec	91
94736c3a TM	92	static int try_legacy_encoding(EVP_PKEY *pkey, int outformat, int pubout,
	93	BIO *out)
	94	{
	95	int ret = 0;
	96	#ifndef OPENSSL_NO_DEPRECATED_3_0
	97	const RSA *rsa = EVP_PKEY_get0_RSA(pkey);
	98
	99	if (rsa == NULL)
	100	return 0;
	101
	102	if (outformat == FORMAT_ASN1) {
	103	if (pubout == 2)
	104	ret = i2d_RSAPublicKey_bio(out, rsa) > 0;
	105	else
	106	ret = i2d_RSA_PUBKEY_bio(out, rsa) > 0;
	107	} else if (outformat == FORMAT_PEM) {
	108	if (pubout == 2)
	109	ret = PEM_write_bio_RSAPublicKey(out, rsa) > 0;
	110	else
	111	ret = PEM_write_bio_RSA_PUBKEY(out, rsa) > 0;
	112	# ifndef OPENSSL_NO_DSA
	113	} else if (outformat == FORMAT_MSBLOB \|\| outformat == FORMAT_PVK) {
	114	ret = i2b_PublicKey_bio(out, pkey) > 0;
	115	# endif
	116	}
	117	#endif
	118
	119	return ret;
	120	}
	121
7e1b7485	122	int rsa_main(int argc, char **argv)
0f113f3e MC	123	{
0f113f3e MC	124	ENGINE *e = NULL;
7e1b7485	125	BIO *out = NULL;
54affb77 P	126	EVP_PKEY *pkey = NULL;
54affb77 P	127	EVP_PKEY_CTX *pctx;
606a417f	128	EVP_CIPHER *enc = NULL;
03bbd346	129	char infile = NULL, outfile = NULL, ciphername = NULL, prog;
7e1b7485	130	char passin = NULL, passout = NULL, passinarg = NULL, passoutarg = NULL;
d7e498ac	131	int private = 0;
d382e796	132	int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, text = 0, check = 0;
83ae8124	133	int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
47422549	134	int pvk_encr = DEFAULT_PVK_ENCR_STRENGTH;
7e1b7485	135	OPTION_CHOICE o;
10203a34	136	int traditional = 0;
d7e498ac RL	137	const char *output_type = NULL;
	138	const char *output_structure = NULL;
	139	int selection = 0;
	140	OSSL_ENCODER_CTX *ectx = NULL;
7e1b7485	141
2c272447	142	opt_set_unknown_name("cipher");
7e1b7485 RS	143	prog = opt_init(argc, argv, rsa_options);
	144	while ((o = opt_next()) != OPT_EOF) {
	145	switch (o) {
	146	case OPT_EOF:
	147	case OPT_ERR:
7e1b7485 RS	148	opthelp:
	149	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	150	goto end;
	151	case OPT_HELP:
	152	opt_help(rsa_options);
	153	ret = 0;
	154	goto end;
	155	case OPT_INFORM:
	156	if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
	157	goto opthelp;
	158	break;
	159	case OPT_IN:
	160	infile = opt_arg();
	161	break;
	162	case OPT_OUTFORM:
	163	if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
	164	goto opthelp;
	165	break;
	166	case OPT_OUT:
	167	outfile = opt_arg();
	168	break;
	169	case OPT_PASSIN:
	170	passinarg = opt_arg();
	171	break;
	172	case OPT_PASSOUT:
	173	passoutarg = opt_arg();
	174	break;
	175	case OPT_ENGINE:
333b070e	176	e = setup_engine(opt_arg(), 0);
7e1b7485 RS	177	break;
7e1b7485 RS	178	case OPT_PUBIN:
0f113f3e	179	pubin = 1;
7e1b7485 RS	180	break;
7e1b7485 RS	181	case OPT_PUBOUT:
0f113f3e	182	pubout = 1;
7e1b7485 RS	183	break;
7e1b7485 RS	184	case OPT_RSAPUBKEY_IN:
0f113f3e	185	pubin = 2;
7e1b7485 RS	186	break;
7e1b7485 RS	187	case OPT_RSAPUBKEY_OUT:
0f113f3e	188	pubout = 2;
7e1b7485	189	break;
e7917e38 F	190	case OPT_PVK_STRONG: /* pvk_encr:= 2 */
	191	case OPT_PVK_WEAK: /* pvk_encr:= 1 */
	192	case OPT_PVK_NONE: /* pvk_encr:= 0 */
e7917e38	193	pvk_encr = (o - OPT_PVK_NONE);
e7917e38	194	break;
7e1b7485	195	case OPT_NOOUT:
0f113f3e	196	noout = 1;
7e1b7485 RS	197	break;
7e1b7485 RS	198	case OPT_TEXT:
0f113f3e	199	text = 1;
7e1b7485 RS	200	break;
7e1b7485 RS	201	case OPT_MODULUS:
0f113f3e	202	modulus = 1;
7e1b7485 RS	203	break;
7e1b7485 RS	204	case OPT_CHECK:
0f113f3e	205	check = 1;
7e1b7485 RS	206	break;
7e1b7485 RS	207	case OPT_CIPHER:
03bbd346	208	ciphername = opt_unknown();
0f113f3e	209	break;
6bd4e3f2 P	210	case OPT_PROV_CASES:
	211	if (!opt_provider(o))
	212	goto end;
	213	break;
10203a34 KR	214	case OPT_TRADITIONAL:
	215	traditional = 1;
	216	break;
0f113f3e	217	}
0f113f3e	218	}
021410ea RS	219
021410ea RS	220	/* No extra arguments. */
d9f07357	221	if (!opt_check_rest_arg(NULL))
03358517 KR	222	goto opthelp;
03358517 KR	223
d9f07357 DDO	224	if (!opt_cipher(ciphername, &enc))
d9f07357 DDO	225	goto opthelp;
091fef49	226	private = (text && !pubin) \|\| (!pubout && !noout);
0f113f3e	227
7e1b7485	228	if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e MC	229	BIO_printf(bio_err, "Error getting passwords\n");
	230	goto end;
	231	}
0f113f3e MC	232	if (check && pubin) {
	233	BIO_printf(bio_err, "Only private keys can be checked\n");
	234	goto end;
	235	}
	236
54affb77	237	if (pubin) {
d382e796	238	int tmpformat = FORMAT_UNDEF;
0f113f3e	239
54affb77 P	240	if (pubin == 2) {
	241	if (informat == FORMAT_PEM)
	242	tmpformat = FORMAT_PEMRSA;
	243	else if (informat == FORMAT_ASN1)
	244	tmpformat = FORMAT_ASN1RSA;
2234212c	245	} else {
54affb77	246	tmpformat = informat;
2234212c	247	}
0f113f3e	248
50eb2a50	249	pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
54affb77	250	} else {
50eb2a50	251	pkey = load_key(infile, informat, 1, passin, e, "private key");
0f113f3e MC	252	}
0f113f3e MC	253
d7e498ac	254	if (pkey == NULL) {
0f113f3e MC	255	ERR_print_errors(bio_err);
	256	goto end;
	257	}
388d6f45	258	if (!EVP_PKEY_is_a(pkey, "RSA") && !EVP_PKEY_is_a(pkey, "RSA-PSS")) {
d7e498ac RL	259	BIO_printf(bio_err, "Not an RSA key\n");
	260	goto end;
	261	}
0f113f3e	262
bdd58d98	263	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	264	if (out == NULL)
7e1b7485 RS	265	goto end;
0f113f3e	266
3b061a00	267	if (text) {
7eff6aa0	268	assert(pubin \|\| private);
54affb77 P	269	if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
54affb77 P	270	\|\| (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
0f113f3e MC	271	perror(outfile);
	272	ERR_print_errors(bio_err);
	273	goto end;
	274	}
3b061a00	275	}
0f113f3e MC	276
0f113f3e MC	277	if (modulus) {
d7e498ac RL	278	BIGNUM *n = NULL;
	279
	280	/* Every RSA key has an 'n' */
	281	EVP_PKEY_get_bn_param(pkey, "n", &n);
0f113f3e	282	BIO_printf(out, "Modulus=");
9862e9aa	283	BN_print(out, n);
0f113f3e	284	BIO_printf(out, "\n");
d7e498ac	285	BN_free(n);
0f113f3e MC	286	}
	287
	288	if (check) {
54affb77 P	289	int r;
	290
	291	pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
	292	if (pctx == NULL) {
7f90026b	293	BIO_printf(bio_err, "RSA unable to create PKEY context\n");
54affb77 P	294	ERR_print_errors(bio_err);
	295	goto end;
	296	}
	297	r = EVP_PKEY_check(pctx);
	298	EVP_PKEY_CTX_free(pctx);
0f113f3e	299
2234212c	300	if (r == 1) {
0f113f3e	301	BIO_printf(out, "RSA key ok\n");
2234212c	302	} else if (r == 0) {
7f90026b DDO	303	BIO_printf(bio_err, "RSA key not ok\n");
7f90026b DDO	304	ERR_print_errors(bio_err);
92d0d7ea	305	} else if (r < 0) {
0f113f3e MC	306	ERR_print_errors(bio_err);
	307	goto end;
	308	}
	309	}
	310
	311	if (noout) {
	312	ret = 0;
	313	goto end;
	314	}
	315	BIO_printf(bio_err, "writing RSA key\n");
d7e498ac RL	316
d7e498ac RL	317	/* Choose output type for the format */
0f113f3e	318	if (outformat == FORMAT_ASN1) {
d7e498ac	319	output_type = "DER";
2234212c	320	} else if (outformat == FORMAT_PEM) {
d7e498ac RL	321	output_type = "PEM";
	322	} else if (outformat == FORMAT_MSBLOB) {
	323	output_type = "MSBLOB";
	324	} else if (outformat == FORMAT_PVK) {
	325	if (pubin) {
	326	BIO_printf(bio_err, "PVK form impossible with public key input\n");
	327	goto end;
	328	}
	329	output_type = "PVK";
	330	} else {
	331	BIO_printf(bio_err, "bad output format specified for outfile\n");
	332	goto end;
	333	}
	334
	335	/* Select what you want in the output */
	336	if (pubout \|\| pubin) {
	337	selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
	338	} else {
	339	assert(private);
	340	selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
	341	\| OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
	342	}
	343
	344	/* For DER based output, select the desired output structure */
	345	if (outformat == FORMAT_ASN1 \|\| outformat == FORMAT_PEM) {
0f113f3e MC	346	if (pubout \|\| pubin) {
0f113f3e MC	347	if (pubout == 2)
d7e498ac	348	output_structure = "pkcs1"; /* "type-specific" would work too */
542b8488 RL	349	else
542b8488 RL	350	output_structure = "SubjectPublicKeyInfo";
3b061a00 RS	351	} else {
3b061a00 RS	352	assert(private);
d7e498ac RL	353	if (traditional)
	354	output_structure = "pkcs1"; /* "type-specific" would work too */
	355	else
6a2b8ff3	356	output_structure = "PrivateKeyInfo";
3b061a00	357	}
d7e498ac	358	}
d896b79b	359
d7e498ac	360	/* Now, perform the encoding */
fe75766c TM	361	ectx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
	362	output_type, output_structure,
	363	NULL);
d7e498ac	364	if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
94736c3a TM	365	if ((!pubout && !pubin)
	366	\|\| !try_legacy_encoding(pkey, outformat, pubout, out))
	367	BIO_printf(bio_err, "%s format not supported\n", output_type);
	368	else
	369	ret = 0;
d7e498ac RL	370	goto end;
	371	}
	372
5432d827 RL	373	/* Passphrase setup */
5432d827 RL	374	if (enc != NULL)
ed576acd	375	OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);
5432d827 RL	376
	377	/* Default passphrase prompter */
	378	if (enc != NULL \|\| outformat == FORMAT_PVK) {
	379	OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
	380	if (passout != NULL)
	381	/* When passout given, override the passphrase prompter */
	382	OSSL_ENCODER_CTX_set_passphrase(ectx,
	383	(const unsigned char *)passout,
	384	strlen(passout));
	385	}
	386
d7e498ac RL	387	/* PVK is a bit special... */
	388	if (outformat == FORMAT_PVK) {
	389	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
	390
	391	params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
	392	if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
	393	BIO_printf(bio_err, "invalid PVK encryption level\n");
b6c68982	394	goto end;
3b061a00	395	}
0f113f3e	396	}
d7e498ac RL	397
d7e498ac RL	398	if (!OSSL_ENCODER_to_bio(ectx, out)) {
0f113f3e MC	399	BIO_printf(bio_err, "unable to write key\n");
0f113f3e MC	400	ERR_print_errors(bio_err);
d7e498ac	401	goto end;
2234212c	402	}
d7e498ac	403	ret = 0;
0f113f3e	404	end:
d7e498ac	405	OSSL_ENCODER_CTX_free(ectx);
dd1abd44	406	release_engine(e);
ca3a82c3	407	BIO_free_all(out);
54affb77	408	EVP_PKEY_free(pkey);
606a417f	409	EVP_CIPHER_free(enc);
b548a1f1 RS	410	OPENSSL_free(passin);
b548a1f1 RS	411	OPENSSL_free(passout);
26a7d938	412	return ret;
0f113f3e	413	}