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

/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2006.
 */
/* ====================================================================
 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include "apps.h"
#include <string.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/evp.h>

#define KEY_PRIVKEY     1
#define KEY_PUBKEY      2
#define KEY_CERT        3

static EVP_PKEY_CTX *init_ctx(int *pkeysize,
                              const char *keyfile, int keyform, int key_type,
                              char *passinarg, int pkey_op, ENGINE *e,
                              const int impl);

static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
                      ENGINE *e);

static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
                    unsigned char *out, size_t *poutlen,
                    unsigned char *in, size_t inlen);

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
    OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
    OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
    OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
    OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT
} OPTION_CHOICE;

OPTIONS pkeyutl_options[] = {
    {"help", OPT_HELP, '-', "Display this summary"},
    {"in", OPT_IN, '<', "Input file - default stdin"},
    {"out", OPT_OUT, '>', "Output file - default stdout"},
    {"pubin", OPT_PUBIN, '-', "Input is a public key"},
    {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
    {"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
    {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
    {"sign", OPT_SIGN, '-', "Sign input data with private key"},
    {"verify", OPT_VERIFY, '-', "Verify with public key"},
    {"verifyrecover", OPT_VERIFYRECOVER, '-',
     "Verify with public key, recover original data"},
    {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
    {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
    {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
    {"derive", OPT_DERIVE, '-', "Derive shared secret"},
    {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
    {"inkey", OPT_INKEY, 's', "Input private key file"},
    {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
    {"passin", OPT_PASSIN, 's', "Pass phrase source"},
    {"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
    {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
    {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
    {"engine_impl", OPT_ENGINE_IMPL, '-',
     "Also use engine given by -engine for crypto operations"},
#endif
    {NULL}
};

int pkeyutl_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY_CTX *ctx = NULL;
    char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
    char hexdump = 0, asn1parse = 0, rev = 0, *prog;
    unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
    OPTION_CHOICE o;
    int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
        FORMAT_PEM;
    int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
    int engine_impl = 0;
    int ret = 1, rv = -1;
    size_t buf_outlen;
    const char *inkey = NULL;
    const char *peerkey = NULL;
    STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;

    prog = opt_init(argc, argv, pkeyutl_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(pkeyutl_options);
            ret = 0;
            goto end;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_SIGFILE:
            sigfile = opt_arg();
            break;
        case OPT_ENGINE_IMPL:
            engine_impl = 1;
            break;
        case OPT_INKEY:
            inkey = opt_arg();
            break;
        case OPT_PEERKEY:
            peerkey = opt_arg();
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PEERFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
                goto opthelp;
            break;
        case OPT_KEYFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
                goto opthelp;
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_PUBIN:
            key_type = KEY_PUBKEY;
            break;
        case OPT_CERTIN:
            key_type = KEY_CERT;
            break;
        case OPT_ASN1PARSE:
            asn1parse = 1;
            break;
        case OPT_HEXDUMP:
            hexdump = 1;
            break;
        case OPT_SIGN:
            pkey_op = EVP_PKEY_OP_SIGN;
            break;
        case OPT_VERIFY:
            pkey_op = EVP_PKEY_OP_VERIFY;
            break;
        case OPT_VERIFYRECOVER:
            pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
            break;
        case OPT_ENCRYPT:
            pkey_op = EVP_PKEY_OP_ENCRYPT;
            break;
        case OPT_DECRYPT:
            pkey_op = EVP_PKEY_OP_DECRYPT;
            break;
        case OPT_DERIVE:
            pkey_op = EVP_PKEY_OP_DERIVE;
            break;
        case OPT_REV:
            rev = 1;
            break;
        case OPT_PKEYOPT:
            if ((pkeyopts == NULL &&
                 (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
                sk_OPENSSL_STRING_push(pkeyopts, *++argv) == 0) {
                BIO_puts(bio_err, "out of memory\n");
                goto end;
            }
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (inkey == NULL ||
        (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE))
        goto opthelp;

    ctx = init_ctx(&keysize, inkey, keyform, key_type,
                   passinarg, pkey_op, e, engine_impl);
    if (ctx == NULL) {
        BIO_printf(bio_err, "%s: Error initializing context\n", prog);
        ERR_print_errors(bio_err);
        goto end;
    }
    if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
        BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
        ERR_print_errors(bio_err);
        goto end;
    }
    if (pkeyopts != NULL) {
        int num = sk_OPENSSL_STRING_num(pkeyopts);
        int i;

        for (i = 0; i < num; ++i) {
            const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);

            if (pkey_ctrl_string(ctx, opt) <= 0) {
                BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
                ERR_print_errors(bio_err);
                goto end;
            }
        }
    }

    if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
        BIO_printf(bio_err,
                   "%s: Signature file specified for non verify\n", prog);
        goto end;
    }

    if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
        BIO_printf(bio_err,
                   "%s: No signature file specified for verify\n", prog);
        goto end;
    }

/* FIXME: seed PRNG only if needed */
    app_RAND_load_file(NULL, 0);

    if (pkey_op != EVP_PKEY_OP_DERIVE) {
        in = bio_open_default(infile, 'r', FORMAT_BINARY);
        if (in == NULL)
            goto end;
    }
    out = bio_open_default(outfile, 'w', FORMAT_BINARY);
    if (out == NULL)
        goto end;

    if (sigfile) {
        BIO *sigbio = BIO_new_file(sigfile, "rb");
        if (!sigbio) {
            BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
            goto end;
        }
        siglen = bio_to_mem(&sig, keysize * 10, sigbio);
        BIO_free(sigbio);
        if (siglen < 0) {
            BIO_printf(bio_err, "Error reading signature data\n");
            goto end;
        }
    }

    if (in) {
        /* Read the input data */
        buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
        if (buf_inlen < 0) {
            BIO_printf(bio_err, "Error reading input Data\n");
            exit(1);
        }
        if (rev) {
            size_t i;
            unsigned char ctmp;
            size_t l = (size_t)buf_inlen;
            for (i = 0; i < l / 2; i++) {
                ctmp = buf_in[i];
                buf_in[i] = buf_in[l - 1 - i];
                buf_in[l - 1 - i] = ctmp;
            }
        }
    }

    if (pkey_op == EVP_PKEY_OP_VERIFY) {
        rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
                             buf_in, (size_t)buf_inlen);
        if (rv == 1) {
            BIO_puts(out, "Signature Verified Successfully\n");
            ret = 0;
        } else
            BIO_puts(out, "Signature Verification Failure\n");
        goto end;
    }
    rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
                  buf_in, (size_t)buf_inlen);
    if (rv > 0 && buf_outlen != 0) {
        buf_out = app_malloc(buf_outlen, "buffer output");
        rv = do_keyop(ctx, pkey_op,
                      buf_out, (size_t *)&buf_outlen,
                      buf_in, (size_t)buf_inlen);
    }
    if (rv < 0) {
        ERR_print_errors(bio_err);
        goto end;
    }
    ret = 0;

    if (asn1parse) {
        if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
            ERR_print_errors(bio_err);
    } else if (hexdump)
        BIO_dump(out, (char *)buf_out, buf_outlen);
    else
        BIO_write(out, buf_out, buf_outlen);

 end:
    EVP_PKEY_CTX_free(ctx);
    BIO_free(in);
    BIO_free_all(out);
    OPENSSL_free(buf_in);
    OPENSSL_free(buf_out);
    OPENSSL_free(sig);
    sk_OPENSSL_STRING_free(pkeyopts);
    return ret;
}

static EVP_PKEY_CTX *init_ctx(int *pkeysize,
                              const char *keyfile, int keyform, int key_type,
                              char *passinarg, int pkey_op, ENGINE *e,
                              const int engine_impl)
{
    EVP_PKEY *pkey = NULL;
    EVP_PKEY_CTX *ctx = NULL;
    ENGINE *impl = NULL;
    char *passin = NULL;
    int rv = -1;
    X509 *x;
    if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
         || (pkey_op == EVP_PKEY_OP_DERIVE))
        && (key_type != KEY_PRIVKEY)) {
        BIO_printf(bio_err, "A private key is needed for this operation\n");
        goto end;
    }
    if (!app_passwd(passinarg, NULL, &passin, NULL)) {
        BIO_printf(bio_err, "Error getting password\n");
        goto end;
    }
    switch (key_type) {
    case KEY_PRIVKEY:
        pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
        break;

    case KEY_PUBKEY:
        pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
        break;

    case KEY_CERT:
        x = load_cert(keyfile, keyform, NULL, e, "Certificate");
        if (x) {
            pkey = X509_get_pubkey(x);
            X509_free(x);
        }
        break;

    }

    *pkeysize = EVP_PKEY_size(pkey);

    if (!pkey)
        goto end;

#ifndef OPENSSL_NO_ENGINE
    if (engine_impl)
        impl = e;
#endif
    
    ctx = EVP_PKEY_CTX_new(pkey, impl);

    EVP_PKEY_free(pkey);

    if (ctx == NULL)
        goto end;

    switch (pkey_op) {
    case EVP_PKEY_OP_SIGN:
        rv = EVP_PKEY_sign_init(ctx);
        break;

    case EVP_PKEY_OP_VERIFY:
        rv = EVP_PKEY_verify_init(ctx);
        break;

    case EVP_PKEY_OP_VERIFYRECOVER:
        rv = EVP_PKEY_verify_recover_init(ctx);
        break;

    case EVP_PKEY_OP_ENCRYPT:
        rv = EVP_PKEY_encrypt_init(ctx);
        break;

    case EVP_PKEY_OP_DECRYPT:
        rv = EVP_PKEY_decrypt_init(ctx);
        break;

    case EVP_PKEY_OP_DERIVE:
        rv = EVP_PKEY_derive_init(ctx);
        break;
    }

    if (rv <= 0) {
        EVP_PKEY_CTX_free(ctx);
        ctx = NULL;
    }

 end:
    OPENSSL_free(passin);
    return ctx;

}

static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
                      ENGINE* e)
{
    EVP_PKEY *peer = NULL;
    ENGINE* engine = NULL;
    int ret;

    if (peerform == FORMAT_ENGINE)
        engine = e;
    peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
    if (!peer) {
        BIO_printf(bio_err, "Error reading peer key %s\n", file);
        ERR_print_errors(bio_err);
        return 0;
    }

    ret = EVP_PKEY_derive_set_peer(ctx, peer);

    EVP_PKEY_free(peer);
    if (ret <= 0)
        ERR_print_errors(bio_err);
    return ret;
}

static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
                    unsigned char *out, size_t *poutlen,
                    unsigned char *in, size_t inlen)
{
    int rv = 0;
    switch (pkey_op) {
    case EVP_PKEY_OP_VERIFYRECOVER:
        rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
        break;

    case EVP_PKEY_OP_SIGN:
        rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
        break;

    case EVP_PKEY_OP_ENCRYPT:
        rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
        break;

    case EVP_PKEY_OP_DECRYPT:
        rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
        break;

    case EVP_PKEY_OP_DERIVE:
        rv = EVP_PKEY_derive(ctx, out, poutlen);
        break;

    }
    return rv;
}
Commit	Line	Data
0f113f3e MC	1	/*
	2	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	3	* 2006.
9e4d0f0b DSH	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
9e4d0f0b DSH	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
9e4d0f0b DSH	59	#include "apps.h"
	60	#include <string.h>
	61	#include <openssl/err.h>
	62	#include <openssl/pem.h>
	63	#include <openssl/evp.h>
	64
0f113f3e MC	65	#define KEY_PRIVKEY 1
	66	#define KEY_PUBKEY 2
	67	#define KEY_CERT 3
9e4d0f0b	68
9e4d0f0b	69	static EVP_PKEY_CTX init_ctx(int pkeysize,
0c20802c	70	const char *keyfile, int keyform, int key_type,
9880236e M	71	char passinarg, int pkey_op, ENGINE e,
9880236e M	72	const int impl);
ffb1ac67	73
0c20802c VD	74	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	75	ENGINE *e);
9e4d0f0b	76
b010b7c4	77	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e MC	78	unsigned char out, size_t poutlen,
0f113f3e MC	79	unsigned char *in, size_t inlen);
b010b7c4	80
7e1b7485 RS	81	typedef enum OPTION_choice {
7e1b7485 RS	82	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
9880236e	83	OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
7e1b7485 RS	84	OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
	85	OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
	86	OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
	87	OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT
	88	} OPTION_CHOICE;
	89
	90	OPTIONS pkeyutl_options[] = {
	91	{"help", OPT_HELP, '-', "Display this summary"},
a173a7ee RS	92	{"in", OPT_IN, '<', "Input file - default stdin"},
a173a7ee RS	93	{"out", OPT_OUT, '>', "Output file - default stdout"},
7e1b7485 RS	94	{"pubin", OPT_PUBIN, '-', "Input is a public key"},
7e1b7485 RS	95	{"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
0c20802c	96	{"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
7e1b7485	97	{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
a173a7ee	98	{"sign", OPT_SIGN, '-', "Sign input data with private key"},
7e1b7485 RS	99	{"verify", OPT_VERIFY, '-', "Verify with public key"},
	100	{"verifyrecover", OPT_VERIFYRECOVER, '-',
	101	"Verify with public key, recover original data"},
a173a7ee RS	102	{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
	103	{"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
	104	{"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
7e1b7485 RS	105	{"derive", OPT_DERIVE, '-', "Derive shared secret"},
7e1b7485 RS	106	{"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
a173a7ee	107	{"inkey", OPT_INKEY, 's', "Input private key file"},
0c20802c	108	{"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
7e1b7485	109	{"passin", OPT_PASSIN, 's', "Pass phrase source"},
0c20802c VD	110	{"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
0c20802c VD	111	{"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
7e1b7485 RS	112	{"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
	113	#ifndef OPENSSL_NO_ENGINE
	114	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
a173a7ee RS	115	{"engine_impl", OPT_ENGINE_IMPL, '-',
a173a7ee RS	116	"Also use engine given by -engine for crypto operations"},
7e1b7485 RS	117	#endif
	118	{NULL}
	119	};
9e4d0f0b	120
7e1b7485	121	int pkeyutl_main(int argc, char **argv)
9e4d0f0b	122	{
0f113f3e	123	BIO in = NULL, out = NULL;
0f113f3e	124	ENGINE *e = NULL;
0f113f3e	125	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	126	char infile = NULL, outfile = NULL, sigfile = NULL, passinarg = NULL;
7e1b7485 RS	127	char hexdump = 0, asn1parse = 0, rev = 0, *prog;
0f113f3e	128	unsigned char buf_in = NULL, buf_out = NULL, *sig = NULL;
7e1b7485 RS	129	OPTION_CHOICE o;
	130	int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
	131	FORMAT_PEM;
	132	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
9880236e	133	int engine_impl = 0;
0f113f3e	134	int ret = 1, rv = -1;
7e1b7485	135	size_t buf_outlen;
0c20802c VD	136	const char *inkey = NULL;
	137	const char *peerkey = NULL;
	138	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
0f113f3e	139
7e1b7485 RS	140	prog = opt_init(argc, argv, pkeyutl_options);
	141	while ((o = opt_next()) != OPT_EOF) {
	142	switch (o) {
	143	case OPT_EOF:
	144	case OPT_ERR:
	145	opthelp:
	146	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	147	goto end;
	148	case OPT_HELP:
	149	opt_help(pkeyutl_options);
	150	ret = 0;
	151	goto end;
	152	case OPT_IN:
	153	infile = opt_arg();
	154	break;
	155	case OPT_OUT:
	156	outfile = opt_arg();
	157	break;
	158	case OPT_SIGFILE:
	159	sigfile = opt_arg();
	160	break;
9880236e M	161	case OPT_ENGINE_IMPL:
	162	engine_impl = 1;
	163	break;
7e1b7485	164	case OPT_INKEY:
0c20802c	165	inkey = opt_arg();
7e1b7485 RS	166	break;
7e1b7485 RS	167	case OPT_PEERKEY:
0c20802c	168	peerkey = opt_arg();
7e1b7485 RS	169	break;
	170	case OPT_PASSIN:
	171	passinarg = opt_arg();
	172	break;
	173	case OPT_PEERFORM:
0c20802c	174	if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
7e1b7485 RS	175	goto opthelp;
	176	break;
	177	case OPT_KEYFORM:
0c20802c	178	if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
7e1b7485 RS	179	goto opthelp;
7e1b7485 RS	180	break;
7e1b7485 RS	181	case OPT_ENGINE:
	182	e = setup_engine(opt_arg(), 0);
	183	break;
7e1b7485	184	case OPT_PUBIN:
0f113f3e	185	key_type = KEY_PUBKEY;
7e1b7485 RS	186	break;
7e1b7485 RS	187	case OPT_CERTIN:
0f113f3e	188	key_type = KEY_CERT;
7e1b7485 RS	189	break;
7e1b7485 RS	190	case OPT_ASN1PARSE:
0f113f3e	191	asn1parse = 1;
7e1b7485 RS	192	break;
7e1b7485 RS	193	case OPT_HEXDUMP:
0f113f3e	194	hexdump = 1;
7e1b7485 RS	195	break;
7e1b7485 RS	196	case OPT_SIGN:
0f113f3e	197	pkey_op = EVP_PKEY_OP_SIGN;
7e1b7485 RS	198	break;
7e1b7485 RS	199	case OPT_VERIFY:
0f113f3e	200	pkey_op = EVP_PKEY_OP_VERIFY;
7e1b7485 RS	201	break;
7e1b7485 RS	202	case OPT_VERIFYRECOVER:
0f113f3e	203	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
7e1b7485	204	break;
7e1b7485	205	case OPT_ENCRYPT:
0f113f3e	206	pkey_op = EVP_PKEY_OP_ENCRYPT;
7e1b7485 RS	207	break;
7e1b7485 RS	208	case OPT_DECRYPT:
0f113f3e	209	pkey_op = EVP_PKEY_OP_DECRYPT;
7e1b7485 RS	210	break;
7e1b7485 RS	211	case OPT_DERIVE:
0f113f3e	212	pkey_op = EVP_PKEY_OP_DERIVE;
7e1b7485	213	break;
0c20802c VD	214	case OPT_REV:
	215	rev = 1;
	216	break;
7e1b7485	217	case OPT_PKEYOPT:
0c20802c VD	218	if ((pkeyopts == NULL &&
	219	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
	220	sk_OPENSSL_STRING_push(pkeyopts, *++argv) == 0) {
	221	BIO_puts(bio_err, "out of memory\n");
0f113f3e MC	222	goto end;
0f113f3e MC	223	}
7e1b7485	224	break;
0f113f3e	225	}
0f113f3e	226	}
7e1b7485 RS	227	argc = opt_num_rest();
7e1b7485 RS	228	argv = opt_rest();
0f113f3e	229
0c20802c VD	230	if (inkey == NULL \|\|
0c20802c VD	231	(peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE))
7e1b7485	232	goto opthelp;
0f113f3e	233
0c20802c	234	ctx = init_ctx(&keysize, inkey, keyform, key_type,
9880236e	235	passinarg, pkey_op, e, engine_impl);
0c20802c VD	236	if (ctx == NULL) {
	237	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
	238	ERR_print_errors(bio_err);
	239	goto end;
	240	}
	241	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
	242	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
	243	ERR_print_errors(bio_err);
	244	goto end;
	245	}
	246	if (pkeyopts != NULL) {
	247	int num = sk_OPENSSL_STRING_num(pkeyopts);
	248	int i;
	249
	250	for (i = 0; i < num; ++i) {
	251	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
	252
	253	if (pkey_ctrl_string(ctx, opt) <= 0) {
	254	BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
	255	ERR_print_errors(bio_err);
	256	goto end;
	257	}
	258	}
	259	}
	260
0f113f3e	261	if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	262	BIO_printf(bio_err,
7e1b7485 RS	263	"%s: Signature file specified for non verify\n", prog);
0f113f3e MC	264	goto end;
	265	}
	266
	267	if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	268	BIO_printf(bio_err,
7e1b7485 RS	269	"%s: No signature file specified for verify\n", prog);
0f113f3e MC	270	goto end;
0f113f3e MC	271	}
a9164153	272
9e4d0f0b	273	/* FIXME: seed PRNG only if needed */
7e1b7485	274	app_RAND_load_file(NULL, 0);
0f113f3e MC	275
0f113f3e MC	276	if (pkey_op != EVP_PKEY_OP_DERIVE) {
bdd58d98	277	in = bio_open_default(infile, 'r', FORMAT_BINARY);
7e1b7485	278	if (in == NULL)
0f113f3e	279	goto end;
0f113f3e	280	}
bdd58d98	281	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
7e1b7485 RS	282	if (out == NULL)
7e1b7485 RS	283	goto end;
0f113f3e MC	284
	285	if (sigfile) {
	286	BIO *sigbio = BIO_new_file(sigfile, "rb");
	287	if (!sigbio) {
	288	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
	289	goto end;
	290	}
	291	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
	292	BIO_free(sigbio);
0c20802c	293	if (siglen < 0) {
0f113f3e MC	294	BIO_printf(bio_err, "Error reading signature data\n");
	295	goto end;
	296	}
	297	}
	298
	299	if (in) {
	300	/* Read the input data */
	301	buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
0c20802c	302	if (buf_inlen < 0) {
0f113f3e MC	303	BIO_printf(bio_err, "Error reading input Data\n");
	304	exit(1);
	305	}
	306	if (rev) {
	307	size_t i;
	308	unsigned char ctmp;
	309	size_t l = (size_t)buf_inlen;
	310	for (i = 0; i < l / 2; i++) {
	311	ctmp = buf_in[i];
	312	buf_in[i] = buf_in[l - 1 - i];
	313	buf_in[l - 1 - i] = ctmp;
	314	}
	315	}
	316	}
	317
	318	if (pkey_op == EVP_PKEY_OP_VERIFY) {
	319	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
	320	buf_in, (size_t)buf_inlen);
7e1b7485	321	if (rv == 1) {
0f113f3e	322	BIO_puts(out, "Signature Verified Successfully\n");
7e1b7485 RS	323	ret = 0;
	324	} else
	325	BIO_puts(out, "Signature Verification Failure\n");
	326	goto end;
	327	}
	328	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
	329	buf_in, (size_t)buf_inlen);
0c20802c	330	if (rv > 0 && buf_outlen != 0) {
68dc6824 RS	331	buf_out = app_malloc(buf_outlen, "buffer output");
	332	rv = do_keyop(ctx, pkey_op,
	333	buf_out, (size_t *)&buf_outlen,
	334	buf_in, (size_t)buf_inlen);
0f113f3e	335	}
0c20802c	336	if (rv < 0) {
0f113f3e MC	337	ERR_print_errors(bio_err);
	338	goto end;
	339	}
	340	ret = 0;
7e1b7485	341
0f113f3e MC	342	if (asn1parse) {
	343	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
	344	ERR_print_errors(bio_err);
	345	} else if (hexdump)
	346	BIO_dump(out, (char *)buf_out, buf_outlen);
	347	else
	348	BIO_write(out, buf_out, buf_outlen);
	349
	350	end:
c5ba2d99	351	EVP_PKEY_CTX_free(ctx);
0f113f3e MC	352	BIO_free(in);
0f113f3e MC	353	BIO_free_all(out);
b548a1f1 RS	354	OPENSSL_free(buf_in);
	355	OPENSSL_free(buf_out);
	356	OPENSSL_free(sig);
0c20802c	357	sk_OPENSSL_STRING_free(pkeyopts);
0f113f3e	358	return ret;
9e4d0f0b DSH	359	}
9e4d0f0b DSH	360
9e4d0f0b	361	static EVP_PKEY_CTX init_ctx(int pkeysize,
0c20802c	362	const char *keyfile, int keyform, int key_type,
9880236e M	363	char passinarg, int pkey_op, ENGINE e,
9880236e M	364	const int engine_impl)
0f113f3e MC	365	{
	366	EVP_PKEY *pkey = NULL;
	367	EVP_PKEY_CTX *ctx = NULL;
9880236e	368	ENGINE *impl = NULL;
0f113f3e MC	369	char *passin = NULL;
	370	int rv = -1;
	371	X509 *x;
	372	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
	373	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
	374	&& (key_type != KEY_PRIVKEY)) {
	375	BIO_printf(bio_err, "A private key is needed for this operation\n");
	376	goto end;
	377	}
7e1b7485	378	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e MC	379	BIO_printf(bio_err, "Error getting password\n");
	380	goto end;
	381	}
	382	switch (key_type) {
	383	case KEY_PRIVKEY:
7e1b7485	384	pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
0f113f3e MC	385	break;
	386
	387	case KEY_PUBKEY:
7e1b7485	388	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
0f113f3e MC	389	break;
	390
	391	case KEY_CERT:
7e1b7485	392	x = load_cert(keyfile, keyform, NULL, e, "Certificate");
0f113f3e MC	393	if (x) {
	394	pkey = X509_get_pubkey(x);
	395	X509_free(x);
	396	}
	397	break;
	398
	399	}
	400
	401	*pkeysize = EVP_PKEY_size(pkey);
	402
	403	if (!pkey)
	404	goto end;
	405
9880236e M	406	#ifndef OPENSSL_NO_ENGINE
	407	if (engine_impl)
	408	impl = e;
	409	#endif
	410
	411	ctx = EVP_PKEY_CTX_new(pkey, impl);
0f113f3e MC	412
	413	EVP_PKEY_free(pkey);
	414
96487cdd	415	if (ctx == NULL)
0f113f3e MC	416	goto end;
	417
	418	switch (pkey_op) {
	419	case EVP_PKEY_OP_SIGN:
	420	rv = EVP_PKEY_sign_init(ctx);
	421	break;
	422
	423	case EVP_PKEY_OP_VERIFY:
	424	rv = EVP_PKEY_verify_init(ctx);
	425	break;
	426
	427	case EVP_PKEY_OP_VERIFYRECOVER:
	428	rv = EVP_PKEY_verify_recover_init(ctx);
	429	break;
	430
	431	case EVP_PKEY_OP_ENCRYPT:
	432	rv = EVP_PKEY_encrypt_init(ctx);
	433	break;
	434
	435	case EVP_PKEY_OP_DECRYPT:
	436	rv = EVP_PKEY_decrypt_init(ctx);
	437	break;
	438
	439	case EVP_PKEY_OP_DERIVE:
	440	rv = EVP_PKEY_derive_init(ctx);
	441	break;
	442	}
	443
	444	if (rv <= 0) {
	445	EVP_PKEY_CTX_free(ctx);
	446	ctx = NULL;
	447	}
	448
	449	end:
b548a1f1	450	OPENSSL_free(passin);
0f113f3e MC	451	return ctx;
	452
	453	}
9e4d0f0b	454
0c20802c VD	455	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	456	ENGINE* e)
0f113f3e MC	457	{
0f113f3e MC	458	EVP_PKEY *peer = NULL;
0c20802c	459	ENGINE* engine = NULL;
0f113f3e	460	int ret;
0f113f3e	461
0c20802c VD	462	if (peerform == FORMAT_ENGINE)
	463	engine = e;
	464	peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
0f113f3e MC	465	if (!peer) {
0f113f3e MC	466	BIO_printf(bio_err, "Error reading peer key %s\n", file);
7e1b7485	467	ERR_print_errors(bio_err);
0f113f3e MC	468	return 0;
	469	}
	470
	471	ret = EVP_PKEY_derive_set_peer(ctx, peer);
	472
	473	EVP_PKEY_free(peer);
	474	if (ret <= 0)
7e1b7485	475	ERR_print_errors(bio_err);
0f113f3e MC	476	return ret;
0f113f3e MC	477	}
b010b7c4 DSH	478
b010b7c4 DSH	479	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e MC	480	unsigned char out, size_t poutlen,
	481	unsigned char *in, size_t inlen)
	482	{
	483	int rv = 0;
	484	switch (pkey_op) {
	485	case EVP_PKEY_OP_VERIFYRECOVER:
	486	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
	487	break;
	488
	489	case EVP_PKEY_OP_SIGN:
	490	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
	491	break;
	492
	493	case EVP_PKEY_OP_ENCRYPT:
	494	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
	495	break;
	496
	497	case EVP_PKEY_OP_DECRYPT:
	498	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
	499	break;
	500
	501	case EVP_PKEY_OP_DERIVE:
	502	rv = EVP_PKEY_derive(ctx, out, poutlen);
	503	break;
	504
	505	}
	506	return rv;
	507	}