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

/*
 * Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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 "apps.h"
#include <string.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/evp.h>

#define KEY_NONE        0
#define KEY_PRIVKEY     1
#define KEY_PUBKEY      2
#define KEY_CERT        3

static EVP_PKEY_CTX *init_ctx(const char *kdfalg, 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,
                    const 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, OPT_KDF, OPT_KDFLEN
} OPTION_CHOICE;

const 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"},
    {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
    {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
    {"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', "Input file 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;
    const char *kdfalg = NULL;
    int kdflen = 0;
    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_KDF:
            pkey_op = EVP_PKEY_OP_DERIVE;
            key_type = KEY_NONE;
            kdfalg = opt_arg();
            break;
        case OPT_KDFLEN:
            kdflen = atoi(opt_arg());
            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, opt_arg()) == 0) {
                BIO_puts(bio_err, "out of memory\n");
                goto end;
            }
            break;
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    if (kdfalg != NULL) {
        if (kdflen == 0)
            goto opthelp;
    } else if ((inkey == NULL)
            || (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
        goto opthelp;
    }
    ctx = init_ctx(kdfalg, &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 != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
        BIO_printf(bio_err,
                   "%s: Signature file specified for non verify\n", prog);
        goto end;
    }

    if (sigfile == NULL && (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 != NULL) {
        BIO *sigbio = BIO_new_file(sigfile, "rb");

        if (sigbio == NULL) {
            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 != NULL) {
        /* 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;
    }
    if (kdflen != 0) {
        buf_outlen = kdflen;
        rv = 1;
    } else {
        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) {
        BIO_puts(bio_err, "Public Key operation error\n");
        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);
    release_engine(e);
    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(const char *kdfalg, 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 && kdfalg == NULL)) {
        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, "Certificate");
        if (x) {
            pkey = X509_get_pubkey(x);
            X509_free(x);
        }
        break;

    case KEY_NONE:
        break;

    }

#ifndef OPENSSL_NO_ENGINE
    if (engine_impl)
        impl = e;
#endif

    if (kdfalg != NULL) {
        int kdfnid = OBJ_sn2nid(kdfalg);
        if (kdfnid == NID_undef)
            goto end;
        ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
    } else {
        if (pkey == NULL)
            goto end;
        *pkeysize = EVP_PKEY_size(pkey);
        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 == NULL) {
        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,
                    const 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	1	/*
2234212c	2	* Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.
9e4d0f0b	3	*
846e33c7 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	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
9e4d0f0b DSH	8	*/
9e4d0f0b DSH	9
9e4d0f0b DSH	10	#include "apps.h"
	11	#include <string.h>
	12	#include <openssl/err.h>
	13	#include <openssl/pem.h>
	14	#include <openssl/evp.h>
	15
924ec89a	16	#define KEY_NONE 0
0f113f3e MC	17	#define KEY_PRIVKEY 1
	18	#define KEY_PUBKEY 2
	19	#define KEY_CERT 3
9e4d0f0b	20
924ec89a	21	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	22	const char *keyfile, int keyform, int key_type,
9880236e M	23	char passinarg, int pkey_op, ENGINE e,
9880236e M	24	const int impl);
ffb1ac67	25
0c20802c VD	26	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	27	ENGINE *e);
9e4d0f0b	28
b010b7c4	29	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	30	unsigned char out, size_t poutlen,
cc696296	31	const unsigned char *in, size_t inlen);
b010b7c4	32
7e1b7485 RS	33	typedef enum OPTION_choice {
7e1b7485 RS	34	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
9880236e	35	OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
7e1b7485 RS	36	OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
	37	OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
	38	OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
924ec89a	39	OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_KDF, OPT_KDFLEN
7e1b7485 RS	40	} OPTION_CHOICE;
7e1b7485 RS	41
44c83ebd	42	const OPTIONS pkeyutl_options[] = {
7e1b7485	43	{"help", OPT_HELP, '-', "Display this summary"},
a173a7ee RS	44	{"in", OPT_IN, '<', "Input file - default stdin"},
a173a7ee RS	45	{"out", OPT_OUT, '>', "Output file - default stdout"},
7e1b7485 RS	46	{"pubin", OPT_PUBIN, '-', "Input is a public key"},
7e1b7485 RS	47	{"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
0c20802c	48	{"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
7e1b7485	49	{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
a173a7ee	50	{"sign", OPT_SIGN, '-', "Sign input data with private key"},
7e1b7485 RS	51	{"verify", OPT_VERIFY, '-', "Verify with public key"},
	52	{"verifyrecover", OPT_VERIFYRECOVER, '-',
	53	"Verify with public key, recover original data"},
a173a7ee RS	54	{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
	55	{"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
	56	{"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
7e1b7485	57	{"derive", OPT_DERIVE, '-', "Derive shared secret"},
924ec89a DSH	58	{"kdf", OPT_KDF, 's', "Use KDF algorithm"},
924ec89a DSH	59	{"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
7e1b7485	60	{"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
a173a7ee	61	{"inkey", OPT_INKEY, 's', "Input private key file"},
0c20802c	62	{"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
16e1b281	63	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
0c20802c VD	64	{"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
0c20802c VD	65	{"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
7e1b7485 RS	66	{"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
	67	#ifndef OPENSSL_NO_ENGINE
	68	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
a173a7ee RS	69	{"engine_impl", OPT_ENGINE_IMPL, '-',
a173a7ee RS	70	"Also use engine given by -engine for crypto operations"},
7e1b7485 RS	71	#endif
	72	{NULL}
	73	};
9e4d0f0b	74
7e1b7485	75	int pkeyutl_main(int argc, char **argv)
9e4d0f0b	76	{
0f113f3e	77	BIO in = NULL, out = NULL;
0f113f3e	78	ENGINE *e = NULL;
0f113f3e	79	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	80	char infile = NULL, outfile = NULL, sigfile = NULL, passinarg = NULL;
7e1b7485 RS	81	char hexdump = 0, asn1parse = 0, rev = 0, *prog;
0f113f3e	82	unsigned char buf_in = NULL, buf_out = NULL, *sig = NULL;
7e1b7485 RS	83	OPTION_CHOICE o;
	84	int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
	85	FORMAT_PEM;
	86	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
9880236e	87	int engine_impl = 0;
0f113f3e	88	int ret = 1, rv = -1;
7e1b7485	89	size_t buf_outlen;
0c20802c VD	90	const char *inkey = NULL;
0c20802c VD	91	const char *peerkey = NULL;
924ec89a DSH	92	const char *kdfalg = NULL;
924ec89a DSH	93	int kdflen = 0;
0c20802c	94	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
0f113f3e	95
7e1b7485 RS	96	prog = opt_init(argc, argv, pkeyutl_options);
	97	while ((o = opt_next()) != OPT_EOF) {
	98	switch (o) {
	99	case OPT_EOF:
	100	case OPT_ERR:
	101	opthelp:
	102	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	103	goto end;
	104	case OPT_HELP:
	105	opt_help(pkeyutl_options);
	106	ret = 0;
	107	goto end;
	108	case OPT_IN:
	109	infile = opt_arg();
	110	break;
	111	case OPT_OUT:
	112	outfile = opt_arg();
	113	break;
	114	case OPT_SIGFILE:
	115	sigfile = opt_arg();
	116	break;
9880236e M	117	case OPT_ENGINE_IMPL:
	118	engine_impl = 1;
	119	break;
7e1b7485	120	case OPT_INKEY:
0c20802c	121	inkey = opt_arg();
7e1b7485 RS	122	break;
7e1b7485 RS	123	case OPT_PEERKEY:
0c20802c	124	peerkey = opt_arg();
7e1b7485 RS	125	break;
	126	case OPT_PASSIN:
	127	passinarg = opt_arg();
	128	break;
	129	case OPT_PEERFORM:
0c20802c	130	if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
7e1b7485 RS	131	goto opthelp;
	132	break;
	133	case OPT_KEYFORM:
0c20802c	134	if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
7e1b7485 RS	135	goto opthelp;
7e1b7485 RS	136	break;
7e1b7485 RS	137	case OPT_ENGINE:
	138	e = setup_engine(opt_arg(), 0);
	139	break;
7e1b7485	140	case OPT_PUBIN:
0f113f3e	141	key_type = KEY_PUBKEY;
7e1b7485 RS	142	break;
7e1b7485 RS	143	case OPT_CERTIN:
0f113f3e	144	key_type = KEY_CERT;
7e1b7485 RS	145	break;
7e1b7485 RS	146	case OPT_ASN1PARSE:
0f113f3e	147	asn1parse = 1;
7e1b7485 RS	148	break;
7e1b7485 RS	149	case OPT_HEXDUMP:
0f113f3e	150	hexdump = 1;
7e1b7485 RS	151	break;
7e1b7485 RS	152	case OPT_SIGN:
0f113f3e	153	pkey_op = EVP_PKEY_OP_SIGN;
7e1b7485 RS	154	break;
7e1b7485 RS	155	case OPT_VERIFY:
0f113f3e	156	pkey_op = EVP_PKEY_OP_VERIFY;
7e1b7485 RS	157	break;
7e1b7485 RS	158	case OPT_VERIFYRECOVER:
0f113f3e	159	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
7e1b7485	160	break;
7e1b7485	161	case OPT_ENCRYPT:
0f113f3e	162	pkey_op = EVP_PKEY_OP_ENCRYPT;
7e1b7485 RS	163	break;
7e1b7485 RS	164	case OPT_DECRYPT:
0f113f3e	165	pkey_op = EVP_PKEY_OP_DECRYPT;
7e1b7485 RS	166	break;
7e1b7485 RS	167	case OPT_DERIVE:
0f113f3e	168	pkey_op = EVP_PKEY_OP_DERIVE;
7e1b7485	169	break;
924ec89a DSH	170	case OPT_KDF:
	171	pkey_op = EVP_PKEY_OP_DERIVE;
	172	key_type = KEY_NONE;
	173	kdfalg = opt_arg();
	174	break;
	175	case OPT_KDFLEN:
	176	kdflen = atoi(opt_arg());
	177	break;
0c20802c VD	178	case OPT_REV:
	179	rev = 1;
	180	break;
7e1b7485	181	case OPT_PKEYOPT:
0c20802c VD	182	if ((pkeyopts == NULL &&
0c20802c VD	183	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
78524149	184	sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
0c20802c	185	BIO_puts(bio_err, "out of memory\n");
0f113f3e MC	186	goto end;
0f113f3e MC	187	}
7e1b7485	188	break;
0f113f3e	189	}
0f113f3e	190	}
7e1b7485	191	argc = opt_num_rest();
03358517 KR	192	if (argc != 0)
03358517 KR	193	goto opthelp;
0f113f3e	194
924ec89a DSH	195	if (kdfalg != NULL) {
	196	if (kdflen == 0)
	197	goto opthelp;
	198	} else if ((inkey == NULL)
	199	\|\| (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
7e1b7485	200	goto opthelp;
924ec89a DSH	201	}
924ec89a DSH	202	ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
9880236e	203	passinarg, pkey_op, e, engine_impl);
0c20802c VD	204	if (ctx == NULL) {
	205	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
	206	ERR_print_errors(bio_err);
	207	goto end;
	208	}
	209	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
	210	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
	211	ERR_print_errors(bio_err);
	212	goto end;
	213	}
	214	if (pkeyopts != NULL) {
	215	int num = sk_OPENSSL_STRING_num(pkeyopts);
	216	int i;
	217
	218	for (i = 0; i < num; ++i) {
	219	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
	220
	221	if (pkey_ctrl_string(ctx, opt) <= 0) {
	222	BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
	223	ERR_print_errors(bio_err);
	224	goto end;
	225	}
	226	}
	227	}
	228
2234212c	229	if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	230	BIO_printf(bio_err,
7e1b7485 RS	231	"%s: Signature file specified for non verify\n", prog);
0f113f3e MC	232	goto end;
	233	}
	234
2234212c	235	if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	236	BIO_printf(bio_err,
7e1b7485 RS	237	"%s: No signature file specified for verify\n", prog);
0f113f3e MC	238	goto end;
0f113f3e MC	239	}
a9164153	240
9e4d0f0b	241	/* FIXME: seed PRNG only if needed */
7e1b7485	242	app_RAND_load_file(NULL, 0);
0f113f3e MC	243
0f113f3e MC	244	if (pkey_op != EVP_PKEY_OP_DERIVE) {
bdd58d98	245	in = bio_open_default(infile, 'r', FORMAT_BINARY);
7e1b7485	246	if (in == NULL)
0f113f3e	247	goto end;
0f113f3e	248	}
bdd58d98	249	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
7e1b7485 RS	250	if (out == NULL)
7e1b7485 RS	251	goto end;
0f113f3e	252
2234212c	253	if (sigfile != NULL) {
0f113f3e	254	BIO *sigbio = BIO_new_file(sigfile, "rb");
2234212c PY	255
2234212c PY	256	if (sigbio == NULL) {
0f113f3e MC	257	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
	258	goto end;
	259	}
	260	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
	261	BIO_free(sigbio);
0c20802c	262	if (siglen < 0) {
0f113f3e MC	263	BIO_printf(bio_err, "Error reading signature data\n");
	264	goto end;
	265	}
	266	}
	267
2234212c	268	if (in != NULL) {
0f113f3e MC	269	/* Read the input data */
0f113f3e MC	270	buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
0c20802c	271	if (buf_inlen < 0) {
0f113f3e MC	272	BIO_printf(bio_err, "Error reading input Data\n");
	273	exit(1);
	274	}
	275	if (rev) {
	276	size_t i;
	277	unsigned char ctmp;
	278	size_t l = (size_t)buf_inlen;
	279	for (i = 0; i < l / 2; i++) {
	280	ctmp = buf_in[i];
	281	buf_in[i] = buf_in[l - 1 - i];
	282	buf_in[l - 1 - i] = ctmp;
	283	}
	284	}
	285	}
	286
	287	if (pkey_op == EVP_PKEY_OP_VERIFY) {
	288	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
	289	buf_in, (size_t)buf_inlen);
7e1b7485	290	if (rv == 1) {
0f113f3e	291	BIO_puts(out, "Signature Verified Successfully\n");
7e1b7485	292	ret = 0;
2234212c	293	} else {
7e1b7485	294	BIO_puts(out, "Signature Verification Failure\n");
2234212c	295	}
7e1b7485 RS	296	goto end;
7e1b7485 RS	297	}
924ec89a DSH	298	if (kdflen != 0) {
	299	buf_outlen = kdflen;
	300	rv = 1;
	301	} else {
	302	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
	303	buf_in, (size_t)buf_inlen);
	304	}
0c20802c	305	if (rv > 0 && buf_outlen != 0) {
68dc6824 RS	306	buf_out = app_malloc(buf_outlen, "buffer output");
	307	rv = do_keyop(ctx, pkey_op,
	308	buf_out, (size_t *)&buf_outlen,
	309	buf_in, (size_t)buf_inlen);
0f113f3e	310	}
78524149 DSH	311	if (rv <= 0) {
78524149 DSH	312	BIO_puts(bio_err, "Public Key operation error\n");
0f113f3e MC	313	ERR_print_errors(bio_err);
	314	goto end;
	315	}
	316	ret = 0;
7e1b7485	317
0f113f3e MC	318	if (asn1parse) {
	319	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
	320	ERR_print_errors(bio_err);
2234212c	321	} else if (hexdump) {
0f113f3e	322	BIO_dump(out, (char *)buf_out, buf_outlen);
2234212c	323	} else {
0f113f3e	324	BIO_write(out, buf_out, buf_outlen);
2234212c	325	}
0f113f3e MC	326
0f113f3e MC	327	end:
c5ba2d99	328	EVP_PKEY_CTX_free(ctx);
dd1abd44	329	release_engine(e);
0f113f3e MC	330	BIO_free(in);
0f113f3e MC	331	BIO_free_all(out);
b548a1f1 RS	332	OPENSSL_free(buf_in);
	333	OPENSSL_free(buf_out);
	334	OPENSSL_free(sig);
0c20802c	335	sk_OPENSSL_STRING_free(pkeyopts);
0f113f3e	336	return ret;
9e4d0f0b DSH	337	}
9e4d0f0b DSH	338
924ec89a	339	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	340	const char *keyfile, int keyform, int key_type,
9880236e M	341	char passinarg, int pkey_op, ENGINE e,
9880236e M	342	const int engine_impl)
0f113f3e MC	343	{
	344	EVP_PKEY *pkey = NULL;
	345	EVP_PKEY_CTX *ctx = NULL;
9880236e	346	ENGINE *impl = NULL;
0f113f3e MC	347	char *passin = NULL;
	348	int rv = -1;
	349	X509 *x;
	350	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
	351	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
924ec89a	352	&& (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
0f113f3e MC	353	BIO_printf(bio_err, "A private key is needed for this operation\n");
	354	goto end;
	355	}
7e1b7485	356	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e MC	357	BIO_printf(bio_err, "Error getting password\n");
	358	goto end;
	359	}
	360	switch (key_type) {
	361	case KEY_PRIVKEY:
7e1b7485	362	pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
0f113f3e MC	363	break;
	364
	365	case KEY_PUBKEY:
7e1b7485	366	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
0f113f3e MC	367	break;
	368
	369	case KEY_CERT:
a773b52a	370	x = load_cert(keyfile, keyform, "Certificate");
0f113f3e MC	371	if (x) {
	372	pkey = X509_get_pubkey(x);
	373	X509_free(x);
	374	}
	375	break;
	376
924ec89a DSH	377	case KEY_NONE:
924ec89a DSH	378	break;
0f113f3e	379
924ec89a	380	}
0f113f3e	381
9880236e M	382	#ifndef OPENSSL_NO_ENGINE
	383	if (engine_impl)
	384	impl = e;
	385	#endif
0f113f3e	386
2234212c	387	if (kdfalg != NULL) {
924ec89a DSH	388	int kdfnid = OBJ_sn2nid(kdfalg);
	389	if (kdfnid == NID_undef)
	390	goto end;
	391	ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
	392	} else {
	393	if (pkey == NULL)
	394	goto end;
	395	*pkeysize = EVP_PKEY_size(pkey);
	396	ctx = EVP_PKEY_CTX_new(pkey, impl);
	397	EVP_PKEY_free(pkey);
	398	}
0f113f3e	399
96487cdd	400	if (ctx == NULL)
0f113f3e MC	401	goto end;
	402
	403	switch (pkey_op) {
	404	case EVP_PKEY_OP_SIGN:
	405	rv = EVP_PKEY_sign_init(ctx);
	406	break;
	407
	408	case EVP_PKEY_OP_VERIFY:
	409	rv = EVP_PKEY_verify_init(ctx);
	410	break;
	411
	412	case EVP_PKEY_OP_VERIFYRECOVER:
	413	rv = EVP_PKEY_verify_recover_init(ctx);
	414	break;
	415
	416	case EVP_PKEY_OP_ENCRYPT:
	417	rv = EVP_PKEY_encrypt_init(ctx);
	418	break;
	419
	420	case EVP_PKEY_OP_DECRYPT:
	421	rv = EVP_PKEY_decrypt_init(ctx);
	422	break;
	423
	424	case EVP_PKEY_OP_DERIVE:
	425	rv = EVP_PKEY_derive_init(ctx);
	426	break;
	427	}
	428
	429	if (rv <= 0) {
	430	EVP_PKEY_CTX_free(ctx);
	431	ctx = NULL;
	432	}
	433
	434	end:
b548a1f1	435	OPENSSL_free(passin);
0f113f3e MC	436	return ctx;
	437
	438	}
9e4d0f0b	439
0c20802c VD	440	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	441	ENGINE* e)
0f113f3e MC	442	{
0f113f3e MC	443	EVP_PKEY *peer = NULL;
0c20802c	444	ENGINE* engine = NULL;
0f113f3e	445	int ret;
0f113f3e	446
0c20802c VD	447	if (peerform == FORMAT_ENGINE)
	448	engine = e;
	449	peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
2234212c	450	if (peer == NULL) {
0f113f3e	451	BIO_printf(bio_err, "Error reading peer key %s\n", file);
7e1b7485	452	ERR_print_errors(bio_err);
0f113f3e MC	453	return 0;
	454	}
	455
	456	ret = EVP_PKEY_derive_set_peer(ctx, peer);
	457
	458	EVP_PKEY_free(peer);
	459	if (ret <= 0)
7e1b7485	460	ERR_print_errors(bio_err);
0f113f3e MC	461	return ret;
0f113f3e MC	462	}
b010b7c4 DSH	463
b010b7c4 DSH	464	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	465	unsigned char out, size_t poutlen,
cc696296	466	const unsigned char *in, size_t inlen)
0f113f3e MC	467	{
	468	int rv = 0;
	469	switch (pkey_op) {
	470	case EVP_PKEY_OP_VERIFYRECOVER:
	471	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
	472	break;
	473
	474	case EVP_PKEY_OP_SIGN:
	475	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
	476	break;
	477
	478	case EVP_PKEY_OP_ENCRYPT:
	479	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
	480	break;
	481
	482	case EVP_PKEY_OP_DECRYPT:
	483	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
	484	break;
	485
	486	case EVP_PKEY_OP_DERIVE:
	487	rv = EVP_PKEY_derive(ctx, out, poutlen);
	488	break;
	489
	490	}
	491	return rv;
	492	}