[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 "progs.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,
    OPT_R_ENUM
} 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"},
    OPT_R_OPTIONS,
#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_R_CASES:
            if (!opt_rand(o))
                goto end;
            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;
    }

    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) {
            kdfnid = OBJ_ln2nid(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	10	#include "apps.h"
dab2cd68	11	#include "progs.h"
9e4d0f0b DSH	12	#include <string.h>
	13	#include <openssl/err.h>
	14	#include <openssl/pem.h>
	15	#include <openssl/evp.h>
	16
924ec89a	17	#define KEY_NONE 0
0f113f3e MC	18	#define KEY_PRIVKEY 1
	19	#define KEY_PUBKEY 2
	20	#define KEY_CERT 3
9e4d0f0b	21
924ec89a	22	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	23	const char *keyfile, int keyform, int key_type,
9880236e M	24	char passinarg, int pkey_op, ENGINE e,
9880236e M	25	const int impl);
ffb1ac67	26
0c20802c VD	27	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	28	ENGINE *e);
9e4d0f0b	29
b010b7c4	30	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	31	unsigned char out, size_t poutlen,
cc696296	32	const unsigned char *in, size_t inlen);
b010b7c4	33
7e1b7485 RS	34	typedef enum OPTION_choice {
7e1b7485 RS	35	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
9880236e	36	OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
7e1b7485 RS	37	OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
	38	OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
	39	OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
3ee1eac2 RS	40	OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_KDF, OPT_KDFLEN,
3ee1eac2 RS	41	OPT_R_ENUM
7e1b7485 RS	42	} OPTION_CHOICE;
7e1b7485 RS	43
44c83ebd	44	const OPTIONS pkeyutl_options[] = {
7e1b7485	45	{"help", OPT_HELP, '-', "Display this summary"},
a173a7ee RS	46	{"in", OPT_IN, '<', "Input file - default stdin"},
a173a7ee RS	47	{"out", OPT_OUT, '>', "Output file - default stdout"},
7e1b7485 RS	48	{"pubin", OPT_PUBIN, '-', "Input is a public key"},
7e1b7485 RS	49	{"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
0c20802c	50	{"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
7e1b7485	51	{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
a173a7ee	52	{"sign", OPT_SIGN, '-', "Sign input data with private key"},
7e1b7485 RS	53	{"verify", OPT_VERIFY, '-', "Verify with public key"},
	54	{"verifyrecover", OPT_VERIFYRECOVER, '-',
	55	"Verify with public key, recover original data"},
a173a7ee RS	56	{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
	57	{"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
	58	{"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
7e1b7485	59	{"derive", OPT_DERIVE, '-', "Derive shared secret"},
924ec89a DSH	60	{"kdf", OPT_KDF, 's', "Use KDF algorithm"},
924ec89a DSH	61	{"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
7e1b7485	62	{"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
a173a7ee	63	{"inkey", OPT_INKEY, 's', "Input private key file"},
0c20802c	64	{"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
16e1b281	65	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
0c20802c VD	66	{"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
0c20802c VD	67	{"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
7e1b7485	68	{"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
3ee1eac2	69	OPT_R_OPTIONS,
7e1b7485 RS	70	#ifndef OPENSSL_NO_ENGINE
7e1b7485 RS	71	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
a173a7ee RS	72	{"engine_impl", OPT_ENGINE_IMPL, '-',
a173a7ee RS	73	"Also use engine given by -engine for crypto operations"},
7e1b7485 RS	74	#endif
	75	{NULL}
	76	};
9e4d0f0b	77
7e1b7485	78	int pkeyutl_main(int argc, char **argv)
9e4d0f0b	79	{
0f113f3e	80	BIO in = NULL, out = NULL;
0f113f3e	81	ENGINE *e = NULL;
0f113f3e	82	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	83	char infile = NULL, outfile = NULL, sigfile = NULL, passinarg = NULL;
7e1b7485 RS	84	char hexdump = 0, asn1parse = 0, rev = 0, *prog;
0f113f3e	85	unsigned char buf_in = NULL, buf_out = NULL, *sig = NULL;
7e1b7485 RS	86	OPTION_CHOICE o;
	87	int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
	88	FORMAT_PEM;
	89	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
9880236e	90	int engine_impl = 0;
0f113f3e	91	int ret = 1, rv = -1;
7e1b7485	92	size_t buf_outlen;
0c20802c VD	93	const char *inkey = NULL;
0c20802c VD	94	const char *peerkey = NULL;
924ec89a DSH	95	const char *kdfalg = NULL;
924ec89a DSH	96	int kdflen = 0;
0c20802c	97	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
0f113f3e	98
7e1b7485 RS	99	prog = opt_init(argc, argv, pkeyutl_options);
	100	while ((o = opt_next()) != OPT_EOF) {
	101	switch (o) {
	102	case OPT_EOF:
	103	case OPT_ERR:
	104	opthelp:
	105	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	106	goto end;
	107	case OPT_HELP:
	108	opt_help(pkeyutl_options);
	109	ret = 0;
	110	goto end;
	111	case OPT_IN:
	112	infile = opt_arg();
	113	break;
	114	case OPT_OUT:
	115	outfile = opt_arg();
	116	break;
	117	case OPT_SIGFILE:
	118	sigfile = opt_arg();
	119	break;
9880236e M	120	case OPT_ENGINE_IMPL:
	121	engine_impl = 1;
	122	break;
7e1b7485	123	case OPT_INKEY:
0c20802c	124	inkey = opt_arg();
7e1b7485 RS	125	break;
7e1b7485 RS	126	case OPT_PEERKEY:
0c20802c	127	peerkey = opt_arg();
7e1b7485 RS	128	break;
	129	case OPT_PASSIN:
	130	passinarg = opt_arg();
	131	break;
	132	case OPT_PEERFORM:
0c20802c	133	if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
7e1b7485 RS	134	goto opthelp;
	135	break;
	136	case OPT_KEYFORM:
0c20802c	137	if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
7e1b7485 RS	138	goto opthelp;
7e1b7485 RS	139	break;
3ee1eac2 RS	140	case OPT_R_CASES:
	141	if (!opt_rand(o))
	142	goto end;
	143	break;
7e1b7485 RS	144	case OPT_ENGINE:
	145	e = setup_engine(opt_arg(), 0);
	146	break;
7e1b7485	147	case OPT_PUBIN:
0f113f3e	148	key_type = KEY_PUBKEY;
7e1b7485 RS	149	break;
7e1b7485 RS	150	case OPT_CERTIN:
0f113f3e	151	key_type = KEY_CERT;
7e1b7485 RS	152	break;
7e1b7485 RS	153	case OPT_ASN1PARSE:
0f113f3e	154	asn1parse = 1;
7e1b7485 RS	155	break;
7e1b7485 RS	156	case OPT_HEXDUMP:
0f113f3e	157	hexdump = 1;
7e1b7485 RS	158	break;
7e1b7485 RS	159	case OPT_SIGN:
0f113f3e	160	pkey_op = EVP_PKEY_OP_SIGN;
7e1b7485 RS	161	break;
7e1b7485 RS	162	case OPT_VERIFY:
0f113f3e	163	pkey_op = EVP_PKEY_OP_VERIFY;
7e1b7485 RS	164	break;
7e1b7485 RS	165	case OPT_VERIFYRECOVER:
0f113f3e	166	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
7e1b7485	167	break;
7e1b7485	168	case OPT_ENCRYPT:
0f113f3e	169	pkey_op = EVP_PKEY_OP_ENCRYPT;
7e1b7485 RS	170	break;
7e1b7485 RS	171	case OPT_DECRYPT:
0f113f3e	172	pkey_op = EVP_PKEY_OP_DECRYPT;
7e1b7485 RS	173	break;
7e1b7485 RS	174	case OPT_DERIVE:
0f113f3e	175	pkey_op = EVP_PKEY_OP_DERIVE;
7e1b7485	176	break;
924ec89a DSH	177	case OPT_KDF:
	178	pkey_op = EVP_PKEY_OP_DERIVE;
	179	key_type = KEY_NONE;
	180	kdfalg = opt_arg();
	181	break;
	182	case OPT_KDFLEN:
	183	kdflen = atoi(opt_arg());
	184	break;
0c20802c VD	185	case OPT_REV:
	186	rev = 1;
	187	break;
7e1b7485	188	case OPT_PKEYOPT:
0c20802c VD	189	if ((pkeyopts == NULL &&
0c20802c VD	190	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
78524149	191	sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
0c20802c	192	BIO_puts(bio_err, "out of memory\n");
0f113f3e MC	193	goto end;
0f113f3e MC	194	}
7e1b7485	195	break;
0f113f3e	196	}
0f113f3e	197	}
7e1b7485	198	argc = opt_num_rest();
03358517 KR	199	if (argc != 0)
03358517 KR	200	goto opthelp;
0f113f3e	201
924ec89a DSH	202	if (kdfalg != NULL) {
	203	if (kdflen == 0)
	204	goto opthelp;
	205	} else if ((inkey == NULL)
	206	\|\| (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
7e1b7485	207	goto opthelp;
924ec89a DSH	208	}
924ec89a DSH	209	ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
9880236e	210	passinarg, pkey_op, e, engine_impl);
0c20802c VD	211	if (ctx == NULL) {
	212	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
	213	ERR_print_errors(bio_err);
	214	goto end;
	215	}
	216	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
	217	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
	218	ERR_print_errors(bio_err);
	219	goto end;
	220	}
	221	if (pkeyopts != NULL) {
	222	int num = sk_OPENSSL_STRING_num(pkeyopts);
	223	int i;
	224
	225	for (i = 0; i < num; ++i) {
	226	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
	227
	228	if (pkey_ctrl_string(ctx, opt) <= 0) {
	229	BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
	230	ERR_print_errors(bio_err);
	231	goto end;
	232	}
	233	}
	234	}
	235
2234212c	236	if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	237	BIO_printf(bio_err,
7e1b7485 RS	238	"%s: Signature file specified for non verify\n", prog);
0f113f3e MC	239	goto end;
	240	}
	241
2234212c	242	if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	243	BIO_printf(bio_err,
7e1b7485 RS	244	"%s: No signature file specified for verify\n", prog);
0f113f3e MC	245	goto end;
0f113f3e MC	246	}
a9164153	247
0f113f3e	248	if (pkey_op != EVP_PKEY_OP_DERIVE) {
bdd58d98	249	in = bio_open_default(infile, 'r', FORMAT_BINARY);
7e1b7485	250	if (in == NULL)
0f113f3e	251	goto end;
0f113f3e	252	}
bdd58d98	253	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
7e1b7485 RS	254	if (out == NULL)
7e1b7485 RS	255	goto end;
0f113f3e	256
2234212c	257	if (sigfile != NULL) {
0f113f3e	258	BIO *sigbio = BIO_new_file(sigfile, "rb");
2234212c PY	259
2234212c PY	260	if (sigbio == NULL) {
0f113f3e MC	261	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
	262	goto end;
	263	}
	264	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
	265	BIO_free(sigbio);
0c20802c	266	if (siglen < 0) {
0f113f3e MC	267	BIO_printf(bio_err, "Error reading signature data\n");
	268	goto end;
	269	}
	270	}
	271
2234212c	272	if (in != NULL) {
0f113f3e MC	273	/* Read the input data */
0f113f3e MC	274	buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
0c20802c	275	if (buf_inlen < 0) {
0f113f3e MC	276	BIO_printf(bio_err, "Error reading input Data\n");
	277	exit(1);
	278	}
	279	if (rev) {
	280	size_t i;
	281	unsigned char ctmp;
	282	size_t l = (size_t)buf_inlen;
	283	for (i = 0; i < l / 2; i++) {
	284	ctmp = buf_in[i];
	285	buf_in[i] = buf_in[l - 1 - i];
	286	buf_in[l - 1 - i] = ctmp;
	287	}
	288	}
	289	}
	290
	291	if (pkey_op == EVP_PKEY_OP_VERIFY) {
	292	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
	293	buf_in, (size_t)buf_inlen);
7e1b7485	294	if (rv == 1) {
0f113f3e	295	BIO_puts(out, "Signature Verified Successfully\n");
7e1b7485	296	ret = 0;
2234212c	297	} else {
7e1b7485	298	BIO_puts(out, "Signature Verification Failure\n");
2234212c	299	}
7e1b7485 RS	300	goto end;
7e1b7485 RS	301	}
924ec89a DSH	302	if (kdflen != 0) {
	303	buf_outlen = kdflen;
	304	rv = 1;
	305	} else {
	306	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
	307	buf_in, (size_t)buf_inlen);
	308	}
0c20802c	309	if (rv > 0 && buf_outlen != 0) {
68dc6824 RS	310	buf_out = app_malloc(buf_outlen, "buffer output");
	311	rv = do_keyop(ctx, pkey_op,
	312	buf_out, (size_t *)&buf_outlen,
	313	buf_in, (size_t)buf_inlen);
0f113f3e	314	}
78524149 DSH	315	if (rv <= 0) {
78524149 DSH	316	BIO_puts(bio_err, "Public Key operation error\n");
0f113f3e MC	317	ERR_print_errors(bio_err);
	318	goto end;
	319	}
	320	ret = 0;
7e1b7485	321
0f113f3e MC	322	if (asn1parse) {
	323	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
	324	ERR_print_errors(bio_err);
2234212c	325	} else if (hexdump) {
0f113f3e	326	BIO_dump(out, (char *)buf_out, buf_outlen);
2234212c	327	} else {
0f113f3e	328	BIO_write(out, buf_out, buf_outlen);
2234212c	329	}
0f113f3e MC	330
0f113f3e MC	331	end:
c5ba2d99	332	EVP_PKEY_CTX_free(ctx);
dd1abd44	333	release_engine(e);
0f113f3e MC	334	BIO_free(in);
0f113f3e MC	335	BIO_free_all(out);
b548a1f1 RS	336	OPENSSL_free(buf_in);
	337	OPENSSL_free(buf_out);
	338	OPENSSL_free(sig);
0c20802c	339	sk_OPENSSL_STRING_free(pkeyopts);
0f113f3e	340	return ret;
9e4d0f0b DSH	341	}
9e4d0f0b DSH	342
924ec89a	343	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	344	const char *keyfile, int keyform, int key_type,
9880236e M	345	char passinarg, int pkey_op, ENGINE e,
9880236e M	346	const int engine_impl)
0f113f3e MC	347	{
	348	EVP_PKEY *pkey = NULL;
	349	EVP_PKEY_CTX *ctx = NULL;
9880236e	350	ENGINE *impl = NULL;
0f113f3e MC	351	char *passin = NULL;
	352	int rv = -1;
	353	X509 *x;
	354	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
	355	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
924ec89a	356	&& (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
0f113f3e MC	357	BIO_printf(bio_err, "A private key is needed for this operation\n");
	358	goto end;
	359	}
7e1b7485	360	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e MC	361	BIO_printf(bio_err, "Error getting password\n");
	362	goto end;
	363	}
	364	switch (key_type) {
	365	case KEY_PRIVKEY:
7e1b7485	366	pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
0f113f3e MC	367	break;
	368
	369	case KEY_PUBKEY:
7e1b7485	370	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
0f113f3e MC	371	break;
	372
	373	case KEY_CERT:
a773b52a	374	x = load_cert(keyfile, keyform, "Certificate");
0f113f3e MC	375	if (x) {
	376	pkey = X509_get_pubkey(x);
	377	X509_free(x);
	378	}
	379	break;
	380
924ec89a DSH	381	case KEY_NONE:
924ec89a DSH	382	break;
0f113f3e	383
924ec89a	384	}
0f113f3e	385
9880236e M	386	#ifndef OPENSSL_NO_ENGINE
	387	if (engine_impl)
	388	impl = e;
	389	#endif
0f113f3e	390
2234212c	391	if (kdfalg != NULL) {
924ec89a	392	int kdfnid = OBJ_sn2nid(kdfalg);
b15d5ab6 DSH	393
	394	if (kdfnid == NID_undef) {
	395	kdfnid = OBJ_ln2nid(kdfalg);
	396	if (kdfnid == NID_undef)
	397	goto end;
	398	}
924ec89a DSH	399	ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
	400	} else {
	401	if (pkey == NULL)
	402	goto end;
	403	*pkeysize = EVP_PKEY_size(pkey);
	404	ctx = EVP_PKEY_CTX_new(pkey, impl);
	405	EVP_PKEY_free(pkey);
	406	}
0f113f3e	407
96487cdd	408	if (ctx == NULL)
0f113f3e MC	409	goto end;
	410
	411	switch (pkey_op) {
	412	case EVP_PKEY_OP_SIGN:
	413	rv = EVP_PKEY_sign_init(ctx);
	414	break;
	415
	416	case EVP_PKEY_OP_VERIFY:
	417	rv = EVP_PKEY_verify_init(ctx);
	418	break;
	419
	420	case EVP_PKEY_OP_VERIFYRECOVER:
	421	rv = EVP_PKEY_verify_recover_init(ctx);
	422	break;
	423
	424	case EVP_PKEY_OP_ENCRYPT:
	425	rv = EVP_PKEY_encrypt_init(ctx);
	426	break;
	427
	428	case EVP_PKEY_OP_DECRYPT:
	429	rv = EVP_PKEY_decrypt_init(ctx);
	430	break;
	431
	432	case EVP_PKEY_OP_DERIVE:
	433	rv = EVP_PKEY_derive_init(ctx);
	434	break;
	435	}
	436
	437	if (rv <= 0) {
	438	EVP_PKEY_CTX_free(ctx);
	439	ctx = NULL;
	440	}
	441
	442	end:
b548a1f1	443	OPENSSL_free(passin);
0f113f3e MC	444	return ctx;
	445
	446	}
9e4d0f0b	447
0c20802c VD	448	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
0c20802c VD	449	ENGINE* e)
0f113f3e MC	450	{
0f113f3e MC	451	EVP_PKEY *peer = NULL;
0c20802c	452	ENGINE* engine = NULL;
0f113f3e	453	int ret;
0f113f3e	454
0c20802c VD	455	if (peerform == FORMAT_ENGINE)
	456	engine = e;
	457	peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
2234212c	458	if (peer == NULL) {
0f113f3e	459	BIO_printf(bio_err, "Error reading peer key %s\n", file);
7e1b7485	460	ERR_print_errors(bio_err);
0f113f3e MC	461	return 0;
	462	}
	463
	464	ret = EVP_PKEY_derive_set_peer(ctx, peer);
	465
	466	EVP_PKEY_free(peer);
	467	if (ret <= 0)
7e1b7485	468	ERR_print_errors(bio_err);
0f113f3e MC	469	return ret;
0f113f3e MC	470	}
b010b7c4 DSH	471
b010b7c4 DSH	472	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	473	unsigned char out, size_t poutlen,
cc696296	474	const unsigned char *in, size_t inlen)
0f113f3e MC	475	{
	476	int rv = 0;
	477	switch (pkey_op) {
	478	case EVP_PKEY_OP_VERIFYRECOVER:
	479	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
	480	break;
	481
	482	case EVP_PKEY_OP_SIGN:
	483	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
	484	break;
	485
	486	case EVP_PKEY_OP_ENCRYPT:
	487	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
	488	break;
	489
	490	case EVP_PKEY_OP_DECRYPT:
	491	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
	492	break;
	493
	494	case EVP_PKEY_OP_DERIVE:
	495	rv = EVP_PKEY_derive(ctx, out, poutlen);
	496	break;
	497
	498	}
	499	return rv;
	500	}