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

/*
 * Copyright 2006-2018 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) {
            BIO_printf(bio_err,
                       "%s: no KDF length given (-kdflen parameter).\n", prog);
            goto opthelp;
        }
    } else if (inkey == NULL) {
        BIO_printf(bio_err,
                   "%s: no private key given (-inkey parameter).\n", prog);
        goto opthelp;
    } else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
        BIO_printf(bio_err,
                   "%s: no peer key given (-peerkey parameter).\n", prog);
        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 \"%s\":\n",
                           prog, opt);
                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");
            goto end;
        }
        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;
            }
        }
    }

    /* Sanity check the input */
    if (buf_inlen > EVP_MAX_MD_SIZE
            && (pkey_op == EVP_PKEY_OP_SIGN
                || pkey_op == EVP_PKEY_OP_VERIFY
                || pkey_op == EVP_PKEY_OP_VERIFYRECOVER)) {
        BIO_printf(bio_err,
                   "Error: The input data looks too long to be a hash\n");
        goto end;
    }

    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) {
        if (pkey_op != EVP_PKEY_OP_DERIVE) {
            BIO_puts(bio_err, "Public Key operation error\n");
        } else {
            BIO_puts(bio_err, "Key derivation failed\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) {
                BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
                           kdfalg);
                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	/*
6738bf14	2	* Copyright 2006-2018 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	86	OPTION_CHOICE o;
f6add6ac	87	int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform = FORMAT_PEM;
7e1b7485	88	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
9880236e	89	int engine_impl = 0;
0f113f3e	90	int ret = 1, rv = -1;
7e1b7485	91	size_t buf_outlen;
0c20802c VD	92	const char *inkey = NULL;
0c20802c VD	93	const char *peerkey = NULL;
924ec89a DSH	94	const char *kdfalg = NULL;
924ec89a DSH	95	int kdflen = 0;
0c20802c	96	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
0f113f3e	97
7e1b7485 RS	98	prog = opt_init(argc, argv, pkeyutl_options);
	99	while ((o = opt_next()) != OPT_EOF) {
	100	switch (o) {
	101	case OPT_EOF:
	102	case OPT_ERR:
	103	opthelp:
	104	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	105	goto end;
	106	case OPT_HELP:
	107	opt_help(pkeyutl_options);
	108	ret = 0;
	109	goto end;
	110	case OPT_IN:
	111	infile = opt_arg();
	112	break;
	113	case OPT_OUT:
	114	outfile = opt_arg();
	115	break;
	116	case OPT_SIGFILE:
	117	sigfile = opt_arg();
	118	break;
9880236e M	119	case OPT_ENGINE_IMPL:
	120	engine_impl = 1;
	121	break;
7e1b7485	122	case OPT_INKEY:
0c20802c	123	inkey = opt_arg();
7e1b7485 RS	124	break;
7e1b7485 RS	125	case OPT_PEERKEY:
0c20802c	126	peerkey = opt_arg();
7e1b7485 RS	127	break;
	128	case OPT_PASSIN:
	129	passinarg = opt_arg();
	130	break;
	131	case OPT_PEERFORM:
0c20802c	132	if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
7e1b7485 RS	133	goto opthelp;
	134	break;
	135	case OPT_KEYFORM:
0c20802c	136	if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
7e1b7485 RS	137	goto opthelp;
7e1b7485 RS	138	break;
3ee1eac2 RS	139	case OPT_R_CASES:
	140	if (!opt_rand(o))
	141	goto end;
	142	break;
7e1b7485 RS	143	case OPT_ENGINE:
	144	e = setup_engine(opt_arg(), 0);
	145	break;
7e1b7485	146	case OPT_PUBIN:
0f113f3e	147	key_type = KEY_PUBKEY;
7e1b7485 RS	148	break;
7e1b7485 RS	149	case OPT_CERTIN:
0f113f3e	150	key_type = KEY_CERT;
7e1b7485 RS	151	break;
7e1b7485 RS	152	case OPT_ASN1PARSE:
0f113f3e	153	asn1parse = 1;
7e1b7485 RS	154	break;
7e1b7485 RS	155	case OPT_HEXDUMP:
0f113f3e	156	hexdump = 1;
7e1b7485 RS	157	break;
7e1b7485 RS	158	case OPT_SIGN:
0f113f3e	159	pkey_op = EVP_PKEY_OP_SIGN;
7e1b7485 RS	160	break;
7e1b7485 RS	161	case OPT_VERIFY:
0f113f3e	162	pkey_op = EVP_PKEY_OP_VERIFY;
7e1b7485 RS	163	break;
7e1b7485 RS	164	case OPT_VERIFYRECOVER:
0f113f3e	165	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
7e1b7485	166	break;
7e1b7485	167	case OPT_ENCRYPT:
0f113f3e	168	pkey_op = EVP_PKEY_OP_ENCRYPT;
7e1b7485 RS	169	break;
7e1b7485 RS	170	case OPT_DECRYPT:
0f113f3e	171	pkey_op = EVP_PKEY_OP_DECRYPT;
7e1b7485 RS	172	break;
7e1b7485 RS	173	case OPT_DERIVE:
0f113f3e	174	pkey_op = EVP_PKEY_OP_DERIVE;
7e1b7485	175	break;
924ec89a DSH	176	case OPT_KDF:
	177	pkey_op = EVP_PKEY_OP_DERIVE;
	178	key_type = KEY_NONE;
	179	kdfalg = opt_arg();
	180	break;
	181	case OPT_KDFLEN:
	182	kdflen = atoi(opt_arg());
	183	break;
0c20802c VD	184	case OPT_REV:
	185	rev = 1;
	186	break;
7e1b7485	187	case OPT_PKEYOPT:
0c20802c VD	188	if ((pkeyopts == NULL &&
0c20802c VD	189	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
78524149	190	sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
0c20802c	191	BIO_puts(bio_err, "out of memory\n");
0f113f3e MC	192	goto end;
0f113f3e MC	193	}
7e1b7485	194	break;
0f113f3e	195	}
0f113f3e	196	}
7e1b7485	197	argc = opt_num_rest();
03358517 KR	198	if (argc != 0)
03358517 KR	199	goto opthelp;
0f113f3e	200
924ec89a	201	if (kdfalg != NULL) {
f6add6ac JB	202	if (kdflen == 0) {
	203	BIO_printf(bio_err,
	204	"%s: no KDF length given (-kdflen parameter).\n", prog);
924ec89a	205	goto opthelp;
f6add6ac JB	206	}
	207	} else if (inkey == NULL) {
	208	BIO_printf(bio_err,
	209	"%s: no private key given (-inkey parameter).\n", prog);
	210	goto opthelp;
	211	} else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
	212	BIO_printf(bio_err,
	213	"%s: no peer key given (-peerkey parameter).\n", prog);
7e1b7485	214	goto opthelp;
924ec89a DSH	215	}
924ec89a DSH	216	ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
9880236e	217	passinarg, pkey_op, e, engine_impl);
0c20802c VD	218	if (ctx == NULL) {
	219	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
	220	ERR_print_errors(bio_err);
	221	goto end;
	222	}
	223	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
	224	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
	225	ERR_print_errors(bio_err);
	226	goto end;
	227	}
	228	if (pkeyopts != NULL) {
	229	int num = sk_OPENSSL_STRING_num(pkeyopts);
	230	int i;
	231
	232	for (i = 0; i < num; ++i) {
	233	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
	234
	235	if (pkey_ctrl_string(ctx, opt) <= 0) {
f6add6ac JB	236	BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
f6add6ac JB	237	prog, opt);
0c20802c VD	238	ERR_print_errors(bio_err);
	239	goto end;
	240	}
	241	}
	242	}
	243
2234212c	244	if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	245	BIO_printf(bio_err,
7e1b7485 RS	246	"%s: Signature file specified for non verify\n", prog);
0f113f3e MC	247	goto end;
	248	}
	249
2234212c	250	if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	251	BIO_printf(bio_err,
7e1b7485 RS	252	"%s: No signature file specified for verify\n", prog);
0f113f3e MC	253	goto end;
0f113f3e MC	254	}
a9164153	255
0f113f3e	256	if (pkey_op != EVP_PKEY_OP_DERIVE) {
bdd58d98	257	in = bio_open_default(infile, 'r', FORMAT_BINARY);
7e1b7485	258	if (in == NULL)
0f113f3e	259	goto end;
0f113f3e	260	}
bdd58d98	261	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
7e1b7485 RS	262	if (out == NULL)
7e1b7485 RS	263	goto end;
0f113f3e	264
2234212c	265	if (sigfile != NULL) {
0f113f3e	266	BIO *sigbio = BIO_new_file(sigfile, "rb");
2234212c PY	267
2234212c PY	268	if (sigbio == NULL) {
0f113f3e MC	269	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
	270	goto end;
	271	}
	272	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
	273	BIO_free(sigbio);
0c20802c	274	if (siglen < 0) {
0f113f3e MC	275	BIO_printf(bio_err, "Error reading signature data\n");
	276	goto end;
	277	}
	278	}
	279
2234212c	280	if (in != NULL) {
0f113f3e MC	281	/* Read the input data */
0f113f3e MC	282	buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
0c20802c	283	if (buf_inlen < 0) {
0f113f3e	284	BIO_printf(bio_err, "Error reading input Data\n");
a0abb6a1	285	goto end;
0f113f3e MC	286	}
	287	if (rev) {
	288	size_t i;
	289	unsigned char ctmp;
	290	size_t l = (size_t)buf_inlen;
	291	for (i = 0; i < l / 2; i++) {
	292	ctmp = buf_in[i];
	293	buf_in[i] = buf_in[l - 1 - i];
	294	buf_in[l - 1 - i] = ctmp;
	295	}
	296	}
	297	}
	298
a0abb6a1 MC	299	/* Sanity check the input */
	300	if (buf_inlen > EVP_MAX_MD_SIZE
	301	&& (pkey_op == EVP_PKEY_OP_SIGN
	302	\|\| pkey_op == EVP_PKEY_OP_VERIFY
	303	\|\| pkey_op == EVP_PKEY_OP_VERIFYRECOVER)) {
	304	BIO_printf(bio_err,
	305	"Error: The input data looks too long to be a hash\n");
	306	goto end;
	307	}
	308
0f113f3e MC	309	if (pkey_op == EVP_PKEY_OP_VERIFY) {
	310	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
	311	buf_in, (size_t)buf_inlen);
7e1b7485	312	if (rv == 1) {
0f113f3e	313	BIO_puts(out, "Signature Verified Successfully\n");
7e1b7485	314	ret = 0;
2234212c	315	} else {
7e1b7485	316	BIO_puts(out, "Signature Verification Failure\n");
2234212c	317	}
7e1b7485 RS	318	goto end;
7e1b7485 RS	319	}
924ec89a DSH	320	if (kdflen != 0) {
	321	buf_outlen = kdflen;
	322	rv = 1;
	323	} else {
	324	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
	325	buf_in, (size_t)buf_inlen);
	326	}
0c20802c	327	if (rv > 0 && buf_outlen != 0) {
68dc6824 RS	328	buf_out = app_malloc(buf_outlen, "buffer output");
	329	rv = do_keyop(ctx, pkey_op,
	330	buf_out, (size_t *)&buf_outlen,
	331	buf_in, (size_t)buf_inlen);
0f113f3e	332	}
78524149	333	if (rv <= 0) {
f6add6ac JB	334	if (pkey_op != EVP_PKEY_OP_DERIVE) {
	335	BIO_puts(bio_err, "Public Key operation error\n");
	336	} else {
	337	BIO_puts(bio_err, "Key derivation failed\n");
	338	}
0f113f3e MC	339	ERR_print_errors(bio_err);
	340	goto end;
	341	}
	342	ret = 0;
7e1b7485	343
0f113f3e MC	344	if (asn1parse) {
	345	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
	346	ERR_print_errors(bio_err);
2234212c	347	} else if (hexdump) {
0f113f3e	348	BIO_dump(out, (char *)buf_out, buf_outlen);
2234212c	349	} else {
0f113f3e	350	BIO_write(out, buf_out, buf_outlen);
2234212c	351	}
0f113f3e MC	352
0f113f3e MC	353	end:
c5ba2d99	354	EVP_PKEY_CTX_free(ctx);
dd1abd44	355	release_engine(e);
0f113f3e MC	356	BIO_free(in);
0f113f3e MC	357	BIO_free_all(out);
b548a1f1 RS	358	OPENSSL_free(buf_in);
	359	OPENSSL_free(buf_out);
	360	OPENSSL_free(sig);
0c20802c	361	sk_OPENSSL_STRING_free(pkeyopts);
0f113f3e	362	return ret;
9e4d0f0b DSH	363	}
9e4d0f0b DSH	364
924ec89a	365	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	366	const char *keyfile, int keyform, int key_type,
9880236e M	367	char passinarg, int pkey_op, ENGINE e,
9880236e M	368	const int engine_impl)
0f113f3e MC	369	{
	370	EVP_PKEY *pkey = NULL;
	371	EVP_PKEY_CTX *ctx = NULL;
9880236e	372	ENGINE *impl = NULL;
0f113f3e MC	373	char *passin = NULL;
	374	int rv = -1;
	375	X509 *x;
	376	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
	377	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
924ec89a	378	&& (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
0f113f3e MC	379	BIO_printf(bio_err, "A private key is needed for this operation\n");
	380	goto end;
	381	}
7e1b7485	382	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e MC	383	BIO_printf(bio_err, "Error getting password\n");
	384	goto end;
	385	}
	386	switch (key_type) {
	387	case KEY_PRIVKEY:
7e1b7485	388	pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
0f113f3e MC	389	break;
	390
	391	case KEY_PUBKEY:
7e1b7485	392	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
0f113f3e MC	393	break;
	394
	395	case KEY_CERT:
a773b52a	396	x = load_cert(keyfile, keyform, "Certificate");
0f113f3e MC	397	if (x) {
	398	pkey = X509_get_pubkey(x);
	399	X509_free(x);
	400	}
	401	break;
	402
924ec89a DSH	403	case KEY_NONE:
924ec89a DSH	404	break;
0f113f3e	405
924ec89a	406	}
0f113f3e	407
9880236e M	408	#ifndef OPENSSL_NO_ENGINE
	409	if (engine_impl)
	410	impl = e;
	411	#endif
0f113f3e	412
2234212c	413	if (kdfalg != NULL) {
924ec89a	414	int kdfnid = OBJ_sn2nid(kdfalg);
b15d5ab6 DSH	415
	416	if (kdfnid == NID_undef) {
	417	kdfnid = OBJ_ln2nid(kdfalg);
f6add6ac JB	418	if (kdfnid == NID_undef) {
	419	BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
	420	kdfalg);
b15d5ab6	421	goto end;
f6add6ac	422	}
b15d5ab6	423	}
924ec89a DSH	424	ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
	425	} else {
	426	if (pkey == NULL)
	427	goto end;
	428	*pkeysize = EVP_PKEY_size(pkey);
	429	ctx = EVP_PKEY_CTX_new(pkey, impl);
	430	EVP_PKEY_free(pkey);
	431	}
0f113f3e	432
96487cdd	433	if (ctx == NULL)
0f113f3e MC	434	goto end;
	435
	436	switch (pkey_op) {
	437	case EVP_PKEY_OP_SIGN:
	438	rv = EVP_PKEY_sign_init(ctx);
	439	break;
	440
	441	case EVP_PKEY_OP_VERIFY:
	442	rv = EVP_PKEY_verify_init(ctx);
	443	break;
	444
	445	case EVP_PKEY_OP_VERIFYRECOVER:
	446	rv = EVP_PKEY_verify_recover_init(ctx);
	447	break;
	448
	449	case EVP_PKEY_OP_ENCRYPT:
	450	rv = EVP_PKEY_encrypt_init(ctx);
	451	break;
	452
	453	case EVP_PKEY_OP_DECRYPT:
	454	rv = EVP_PKEY_decrypt_init(ctx);
	455	break;
	456
	457	case EVP_PKEY_OP_DERIVE:
	458	rv = EVP_PKEY_derive_init(ctx);
	459	break;
	460	}
	461
	462	if (rv <= 0) {
	463	EVP_PKEY_CTX_free(ctx);
	464	ctx = NULL;
	465	}
	466
	467	end:
b548a1f1	468	OPENSSL_free(passin);
0f113f3e MC	469	return ctx;
	470
	471	}
9e4d0f0b	472
0c20802c	473	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
f6add6ac	474	ENGINE *e)
0f113f3e MC	475	{
0f113f3e MC	476	EVP_PKEY *peer = NULL;
f6add6ac	477	ENGINE *engine = NULL;
0f113f3e	478	int ret;
0f113f3e	479
0c20802c VD	480	if (peerform == FORMAT_ENGINE)
	481	engine = e;
	482	peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
2234212c	483	if (peer == NULL) {
0f113f3e	484	BIO_printf(bio_err, "Error reading peer key %s\n", file);
7e1b7485	485	ERR_print_errors(bio_err);
0f113f3e MC	486	return 0;
	487	}
	488
	489	ret = EVP_PKEY_derive_set_peer(ctx, peer);
	490
	491	EVP_PKEY_free(peer);
	492	if (ret <= 0)
7e1b7485	493	ERR_print_errors(bio_err);
0f113f3e MC	494	return ret;
0f113f3e MC	495	}
b010b7c4 DSH	496
b010b7c4 DSH	497	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	498	unsigned char out, size_t poutlen,
cc696296	499	const unsigned char *in, size_t inlen)
0f113f3e MC	500	{
	501	int rv = 0;
	502	switch (pkey_op) {
	503	case EVP_PKEY_OP_VERIFYRECOVER:
	504	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
	505	break;
	506
	507	case EVP_PKEY_OP_SIGN:
	508	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
	509	break;
	510
	511	case EVP_PKEY_OP_ENCRYPT:
	512	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
	513	break;
	514
	515	case EVP_PKEY_OP_DECRYPT:
	516	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
	517	break;
	518
	519	case EVP_PKEY_OP_DERIVE:
	520	rv = EVP_PKEY_derive(ctx, out, poutlen);
	521	break;
	522
	523	}
	524	return rv;
	525	}