[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
 */

/* 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;

    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) ? 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 = "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	/*
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
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"},
6d382c74	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 RS	141
	142	prog = opt_init(argc, argv, rsa_options);
	143	while ((o = opt_next()) != OPT_EOF) {
	144	switch (o) {
	145	case OPT_EOF:
	146	case OPT_ERR:
7e1b7485 RS	147	opthelp:
	148	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	149	goto end;
	150	case OPT_HELP:
	151	opt_help(rsa_options);
	152	ret = 0;
	153	goto end;
	154	case OPT_INFORM:
	155	if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
	156	goto opthelp;
	157	break;
	158	case OPT_IN:
	159	infile = opt_arg();
	160	break;
	161	case OPT_OUTFORM:
	162	if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
	163	goto opthelp;
	164	break;
	165	case OPT_OUT:
	166	outfile = opt_arg();
	167	break;
	168	case OPT_PASSIN:
	169	passinarg = opt_arg();
	170	break;
	171	case OPT_PASSOUT:
	172	passoutarg = opt_arg();
	173	break;
	174	case OPT_ENGINE:
333b070e	175	e = setup_engine(opt_arg(), 0);
7e1b7485 RS	176	break;
7e1b7485 RS	177	case OPT_PUBIN:
0f113f3e	178	pubin = 1;
7e1b7485 RS	179	break;
7e1b7485 RS	180	case OPT_PUBOUT:
0f113f3e	181	pubout = 1;
7e1b7485 RS	182	break;
7e1b7485 RS	183	case OPT_RSAPUBKEY_IN:
0f113f3e	184	pubin = 2;
7e1b7485 RS	185	break;
7e1b7485 RS	186	case OPT_RSAPUBKEY_OUT:
0f113f3e	187	pubout = 2;
7e1b7485	188	break;
e7917e38 F	189	case OPT_PVK_STRONG: /* pvk_encr:= 2 */
	190	case OPT_PVK_WEAK: /* pvk_encr:= 1 */
	191	case OPT_PVK_NONE: /* pvk_encr:= 0 */
e7917e38	192	pvk_encr = (o - OPT_PVK_NONE);
e7917e38	193	break;
7e1b7485	194	case OPT_NOOUT:
0f113f3e	195	noout = 1;
7e1b7485 RS	196	break;
7e1b7485 RS	197	case OPT_TEXT:
0f113f3e	198	text = 1;
7e1b7485 RS	199	break;
7e1b7485 RS	200	case OPT_MODULUS:
0f113f3e	201	modulus = 1;
7e1b7485 RS	202	break;
7e1b7485 RS	203	case OPT_CHECK:
0f113f3e	204	check = 1;
7e1b7485 RS	205	break;
7e1b7485 RS	206	case OPT_CIPHER:
03bbd346	207	ciphername = opt_unknown();
0f113f3e	208	break;
6bd4e3f2 P	209	case OPT_PROV_CASES:
	210	if (!opt_provider(o))
	211	goto end;
	212	break;
10203a34 KR	213	case OPT_TRADITIONAL:
	214	traditional = 1;
	215	break;
0f113f3e	216	}
0f113f3e	217	}
021410ea RS	218
021410ea RS	219	/* No extra arguments. */
d9f07357	220	if (!opt_check_rest_arg(NULL))
03358517 KR	221	goto opthelp;
03358517 KR	222
d9f07357 DDO	223	if (!opt_cipher(ciphername, &enc))
d9f07357 DDO	224	goto opthelp;
7eff6aa0	225	private = (text && !pubin) \|\| (!pubout && !noout) ? 1 : 0;
0f113f3e	226
7e1b7485	227	if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e MC	228	BIO_printf(bio_err, "Error getting passwords\n");
	229	goto end;
	230	}
0f113f3e MC	231	if (check && pubin) {
	232	BIO_printf(bio_err, "Only private keys can be checked\n");
	233	goto end;
	234	}
	235
54affb77	236	if (pubin) {
d382e796	237	int tmpformat = FORMAT_UNDEF;
0f113f3e	238
54affb77 P	239	if (pubin == 2) {
	240	if (informat == FORMAT_PEM)
	241	tmpformat = FORMAT_PEMRSA;
	242	else if (informat == FORMAT_ASN1)
	243	tmpformat = FORMAT_ASN1RSA;
2234212c	244	} else {
54affb77	245	tmpformat = informat;
2234212c	246	}
0f113f3e	247
50eb2a50	248	pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
54affb77	249	} else {
50eb2a50	250	pkey = load_key(infile, informat, 1, passin, e, "private key");
0f113f3e MC	251	}
0f113f3e MC	252
d7e498ac	253	if (pkey == NULL) {
0f113f3e MC	254	ERR_print_errors(bio_err);
	255	goto end;
	256	}
d7e498ac RL	257	if (!EVP_PKEY_is_a(pkey, "RSA")) {
	258	BIO_printf(bio_err, "Not an RSA key\n");
	259	goto end;
	260	}
0f113f3e	261
bdd58d98	262	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	263	if (out == NULL)
7e1b7485 RS	264	goto end;
0f113f3e	265
3b061a00	266	if (text) {
7eff6aa0	267	assert(pubin \|\| private);
54affb77 P	268	if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
54affb77 P	269	\|\| (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
0f113f3e MC	270	perror(outfile);
	271	ERR_print_errors(bio_err);
	272	goto end;
	273	}
3b061a00	274	}
0f113f3e MC	275
0f113f3e MC	276	if (modulus) {
d7e498ac RL	277	BIGNUM *n = NULL;
	278
	279	/* Every RSA key has an 'n' */
	280	EVP_PKEY_get_bn_param(pkey, "n", &n);
0f113f3e	281	BIO_printf(out, "Modulus=");
9862e9aa	282	BN_print(out, n);
0f113f3e	283	BIO_printf(out, "\n");
d7e498ac	284	BN_free(n);
0f113f3e MC	285	}
	286
	287	if (check) {
54affb77 P	288	int r;
	289
	290	pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
	291	if (pctx == NULL) {
7f90026b	292	BIO_printf(bio_err, "RSA unable to create PKEY context\n");
54affb77 P	293	ERR_print_errors(bio_err);
	294	goto end;
	295	}
	296	r = EVP_PKEY_check(pctx);
	297	EVP_PKEY_CTX_free(pctx);
0f113f3e	298
2234212c	299	if (r == 1) {
0f113f3e	300	BIO_printf(out, "RSA key ok\n");
2234212c	301	} else if (r == 0) {
7f90026b DDO	302	BIO_printf(bio_err, "RSA key not ok\n");
7f90026b DDO	303	ERR_print_errors(bio_err);
63db6b77	304	} else if (r == -1) {
0f113f3e MC	305	ERR_print_errors(bio_err);
	306	goto end;
	307	}
	308	}
	309
	310	if (noout) {
	311	ret = 0;
	312	goto end;
	313	}
	314	BIO_printf(bio_err, "writing RSA key\n");
d7e498ac RL	315
d7e498ac RL	316	/* Choose output type for the format */
0f113f3e	317	if (outformat == FORMAT_ASN1) {
d7e498ac	318	output_type = "DER";
2234212c	319	} else if (outformat == FORMAT_PEM) {
d7e498ac RL	320	output_type = "PEM";
	321	} else if (outformat == FORMAT_MSBLOB) {
	322	output_type = "MSBLOB";
	323	} else if (outformat == FORMAT_PVK) {
	324	if (pubin) {
	325	BIO_printf(bio_err, "PVK form impossible with public key input\n");
	326	goto end;
	327	}
	328	output_type = "PVK";
	329	} else {
	330	BIO_printf(bio_err, "bad output format specified for outfile\n");
	331	goto end;
	332	}
	333
	334	/* Select what you want in the output */
	335	if (pubout \|\| pubin) {
	336	selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
	337	} else {
	338	assert(private);
	339	selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
	340	\| OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
	341	}
	342
	343	/* For DER based output, select the desired output structure */
	344	if (outformat == FORMAT_ASN1 \|\| outformat == FORMAT_PEM) {
0f113f3e MC	345	if (pubout \|\| pubin) {
0f113f3e MC	346	if (pubout == 2)
d7e498ac	347	output_structure = "pkcs1"; /* "type-specific" would work too */
542b8488 RL	348	else
542b8488 RL	349	output_structure = "SubjectPublicKeyInfo";
3b061a00 RS	350	} else {
3b061a00 RS	351	assert(private);
d7e498ac RL	352	if (traditional)
	353	output_structure = "pkcs1"; /* "type-specific" would work too */
	354	else
6a2b8ff3	355	output_structure = "PrivateKeyInfo";
3b061a00	356	}
d7e498ac	357	}
d896b79b	358
d7e498ac	359	/* Now, perform the encoding */
fe75766c TM	360	ectx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
	361	output_type, output_structure,
	362	NULL);
d7e498ac	363	if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
94736c3a TM	364	if ((!pubout && !pubin)
	365	\|\| !try_legacy_encoding(pkey, outformat, pubout, out))
	366	BIO_printf(bio_err, "%s format not supported\n", output_type);
	367	else
	368	ret = 0;
d7e498ac RL	369	goto end;
	370	}
	371
5432d827 RL	372	/* Passphrase setup */
5432d827 RL	373	if (enc != NULL)
ed576acd	374	OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);
5432d827 RL	375
	376	/* Default passphrase prompter */
	377	if (enc != NULL \|\| outformat == FORMAT_PVK) {
	378	OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
	379	if (passout != NULL)
	380	/* When passout given, override the passphrase prompter */
	381	OSSL_ENCODER_CTX_set_passphrase(ectx,
	382	(const unsigned char *)passout,
	383	strlen(passout));
	384	}
	385
d7e498ac RL	386	/* PVK is a bit special... */
	387	if (outformat == FORMAT_PVK) {
	388	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
	389
	390	params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
	391	if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
	392	BIO_printf(bio_err, "invalid PVK encryption level\n");
b6c68982	393	goto end;
3b061a00	394	}
0f113f3e	395	}
d7e498ac RL	396
d7e498ac RL	397	if (!OSSL_ENCODER_to_bio(ectx, out)) {
0f113f3e MC	398	BIO_printf(bio_err, "unable to write key\n");
0f113f3e MC	399	ERR_print_errors(bio_err);
d7e498ac	400	goto end;
2234212c	401	}
d7e498ac	402	ret = 0;
0f113f3e	403	end:
d7e498ac	404	OSSL_ENCODER_CTX_free(ectx);
dd1abd44	405	release_engine(e);
ca3a82c3	406	BIO_free_all(out);
54affb77	407	EVP_PKEY_free(pkey);
606a417f	408	EVP_CIPHER_free(enc);
b548a1f1 RS	409	OPENSSL_free(passin);
b548a1f1 RS	410	OPENSSL_free(passout);
26a7d938	411	return ret;
0f113f3e	412	}