[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_PKEYOPT_PASSIN, 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"},
    {"pkeyopt_passin", OPT_PKEYOPT_PASSIN, 's',
     "Public key option that is read as a passphrase argument opt:passphrase"},
    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;
    STACK_OF(OPENSSL_STRING) *pkeyopts_passin = 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;
        case OPT_PKEYOPT_PASSIN:
            if ((pkeyopts_passin == NULL &&
                 (pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) ||
                sk_OPENSSL_STRING_push(pkeyopts_passin, 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 (pkeyopts_passin != NULL) {
        int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
        int i;

        for (i = 0; i < num; i++) {
            char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
            char *passin = strchr(opt, ':');
            char *passwd;

            if (passin == NULL) {
                /* Get password interactively */
                char passwd_buf[4096];
                BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
                EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
                                   passwd_buf, 0);
                passwd = OPENSSL_strdup(passwd_buf);
                if (passwd == NULL) {
                    BIO_puts(bio_err, "out of memory\n");
                    goto end;
                }
            } else {
                /* Get password as a passin argument: First split option name
                 * and passphrase argument into two strings */
                *passin = 0;
                passin++;
                if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
                    BIO_printf(bio_err, "failed to get '%s'\n", opt);
                    goto end;
                }
            }

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

    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);
    sk_OPENSSL_STRING_free(pkeyopts_passin);
    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,
9d1bf5f7 JB	40	OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_PKEYOPT_PASSIN, OPT_KDF,
9d1bf5f7 JB	41	OPT_KDFLEN, 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"},
9d1bf5f7 JB	69	{"pkeyopt_passin", OPT_PKEYOPT_PASSIN, 's',
9d1bf5f7 JB	70	"Public key option that is read as a passphrase argument opt:passphrase"},
3ee1eac2	71	OPT_R_OPTIONS,
7e1b7485 RS	72	#ifndef OPENSSL_NO_ENGINE
7e1b7485 RS	73	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
a173a7ee RS	74	{"engine_impl", OPT_ENGINE_IMPL, '-',
a173a7ee RS	75	"Also use engine given by -engine for crypto operations"},
7e1b7485 RS	76	#endif
	77	{NULL}
	78	};
9e4d0f0b	79
7e1b7485	80	int pkeyutl_main(int argc, char **argv)
9e4d0f0b	81	{
0f113f3e	82	BIO in = NULL, out = NULL;
0f113f3e	83	ENGINE *e = NULL;
0f113f3e	84	EVP_PKEY_CTX *ctx = NULL;
7e1b7485 RS	85	char infile = NULL, outfile = NULL, sigfile = NULL, passinarg = NULL;
7e1b7485 RS	86	char hexdump = 0, asn1parse = 0, rev = 0, *prog;
0f113f3e	87	unsigned char buf_in = NULL, buf_out = NULL, *sig = NULL;
7e1b7485	88	OPTION_CHOICE o;
f6add6ac	89	int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform = FORMAT_PEM;
7e1b7485	90	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
9880236e	91	int engine_impl = 0;
0f113f3e	92	int ret = 1, rv = -1;
7e1b7485	93	size_t buf_outlen;
0c20802c VD	94	const char *inkey = NULL;
0c20802c VD	95	const char *peerkey = NULL;
924ec89a DSH	96	const char *kdfalg = NULL;
924ec89a DSH	97	int kdflen = 0;
0c20802c	98	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
9d1bf5f7	99	STACK_OF(OPENSSL_STRING) *pkeyopts_passin = NULL;
0f113f3e	100
7e1b7485 RS	101	prog = opt_init(argc, argv, pkeyutl_options);
	102	while ((o = opt_next()) != OPT_EOF) {
	103	switch (o) {
	104	case OPT_EOF:
	105	case OPT_ERR:
	106	opthelp:
	107	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	108	goto end;
	109	case OPT_HELP:
	110	opt_help(pkeyutl_options);
	111	ret = 0;
	112	goto end;
	113	case OPT_IN:
	114	infile = opt_arg();
	115	break;
	116	case OPT_OUT:
	117	outfile = opt_arg();
	118	break;
	119	case OPT_SIGFILE:
	120	sigfile = opt_arg();
	121	break;
9880236e M	122	case OPT_ENGINE_IMPL:
	123	engine_impl = 1;
	124	break;
7e1b7485	125	case OPT_INKEY:
0c20802c	126	inkey = opt_arg();
7e1b7485 RS	127	break;
7e1b7485 RS	128	case OPT_PEERKEY:
0c20802c	129	peerkey = opt_arg();
7e1b7485 RS	130	break;
	131	case OPT_PASSIN:
	132	passinarg = opt_arg();
	133	break;
	134	case OPT_PEERFORM:
0c20802c	135	if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
7e1b7485 RS	136	goto opthelp;
	137	break;
	138	case OPT_KEYFORM:
0c20802c	139	if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
7e1b7485 RS	140	goto opthelp;
7e1b7485 RS	141	break;
3ee1eac2 RS	142	case OPT_R_CASES:
	143	if (!opt_rand(o))
	144	goto end;
	145	break;
7e1b7485 RS	146	case OPT_ENGINE:
	147	e = setup_engine(opt_arg(), 0);
	148	break;
7e1b7485	149	case OPT_PUBIN:
0f113f3e	150	key_type = KEY_PUBKEY;
7e1b7485 RS	151	break;
7e1b7485 RS	152	case OPT_CERTIN:
0f113f3e	153	key_type = KEY_CERT;
7e1b7485 RS	154	break;
7e1b7485 RS	155	case OPT_ASN1PARSE:
0f113f3e	156	asn1parse = 1;
7e1b7485 RS	157	break;
7e1b7485 RS	158	case OPT_HEXDUMP:
0f113f3e	159	hexdump = 1;
7e1b7485 RS	160	break;
7e1b7485 RS	161	case OPT_SIGN:
0f113f3e	162	pkey_op = EVP_PKEY_OP_SIGN;
7e1b7485 RS	163	break;
7e1b7485 RS	164	case OPT_VERIFY:
0f113f3e	165	pkey_op = EVP_PKEY_OP_VERIFY;
7e1b7485 RS	166	break;
7e1b7485 RS	167	case OPT_VERIFYRECOVER:
0f113f3e	168	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
7e1b7485	169	break;
7e1b7485	170	case OPT_ENCRYPT:
0f113f3e	171	pkey_op = EVP_PKEY_OP_ENCRYPT;
7e1b7485 RS	172	break;
7e1b7485 RS	173	case OPT_DECRYPT:
0f113f3e	174	pkey_op = EVP_PKEY_OP_DECRYPT;
7e1b7485 RS	175	break;
7e1b7485 RS	176	case OPT_DERIVE:
0f113f3e	177	pkey_op = EVP_PKEY_OP_DERIVE;
7e1b7485	178	break;
924ec89a DSH	179	case OPT_KDF:
	180	pkey_op = EVP_PKEY_OP_DERIVE;
	181	key_type = KEY_NONE;
	182	kdfalg = opt_arg();
	183	break;
	184	case OPT_KDFLEN:
	185	kdflen = atoi(opt_arg());
	186	break;
0c20802c VD	187	case OPT_REV:
	188	rev = 1;
	189	break;
7e1b7485	190	case OPT_PKEYOPT:
0c20802c VD	191	if ((pkeyopts == NULL &&
0c20802c VD	192	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
78524149	193	sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
0c20802c	194	BIO_puts(bio_err, "out of memory\n");
0f113f3e MC	195	goto end;
0f113f3e MC	196	}
7e1b7485	197	break;
9d1bf5f7 JB	198	case OPT_PKEYOPT_PASSIN:
	199	if ((pkeyopts_passin == NULL &&
	200	(pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
	201	sk_OPENSSL_STRING_push(pkeyopts_passin, opt_arg()) == 0) {
	202	BIO_puts(bio_err, "out of memory\n");
	203	goto end;
	204	}
	205	break;
0f113f3e	206	}
0f113f3e	207	}
7e1b7485	208	argc = opt_num_rest();
03358517 KR	209	if (argc != 0)
03358517 KR	210	goto opthelp;
0f113f3e	211
924ec89a	212	if (kdfalg != NULL) {
f6add6ac JB	213	if (kdflen == 0) {
	214	BIO_printf(bio_err,
	215	"%s: no KDF length given (-kdflen parameter).\n", prog);
924ec89a	216	goto opthelp;
f6add6ac JB	217	}
	218	} else if (inkey == NULL) {
	219	BIO_printf(bio_err,
	220	"%s: no private key given (-inkey parameter).\n", prog);
	221	goto opthelp;
	222	} else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
	223	BIO_printf(bio_err,
	224	"%s: no peer key given (-peerkey parameter).\n", prog);
7e1b7485	225	goto opthelp;
924ec89a DSH	226	}
924ec89a DSH	227	ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
9880236e	228	passinarg, pkey_op, e, engine_impl);
0c20802c VD	229	if (ctx == NULL) {
	230	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
	231	ERR_print_errors(bio_err);
	232	goto end;
	233	}
	234	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
	235	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
	236	ERR_print_errors(bio_err);
	237	goto end;
	238	}
	239	if (pkeyopts != NULL) {
	240	int num = sk_OPENSSL_STRING_num(pkeyopts);
	241	int i;
	242
	243	for (i = 0; i < num; ++i) {
	244	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
	245
	246	if (pkey_ctrl_string(ctx, opt) <= 0) {
f6add6ac JB	247	BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
f6add6ac JB	248	prog, opt);
0c20802c VD	249	ERR_print_errors(bio_err);
	250	goto end;
	251	}
	252	}
	253	}
9d1bf5f7 JB	254	if (pkeyopts_passin != NULL) {
	255	int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
	256	int i;
	257
	258	for (i = 0; i < num; i++) {
	259	char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
	260	char *passin = strchr(opt, ':');
	261	char *passwd;
	262
	263	if (passin == NULL) {
	264	/* Get password interactively */
	265	char passwd_buf[4096];
	266	BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
	267	EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
	268	passwd_buf, 0);
	269	passwd = OPENSSL_strdup(passwd_buf);
	270	if (passwd == NULL) {
	271	BIO_puts(bio_err, "out of memory\n");
	272	goto end;
	273	}
	274	} else {
	275	/* Get password as a passin argument: First split option name
	276	* and passphrase argument into two strings */
	277	*passin = 0;
	278	passin++;
	279	if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
	280	BIO_printf(bio_err, "failed to get '%s'\n", opt);
	281	goto end;
	282	}
	283	}
	284
	285	if (EVP_PKEY_CTX_ctrl_str(ctx, opt, passwd) <= 0) {
	286	BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
	287	prog, opt);
	288	goto end;
	289	}
	290	OPENSSL_free(passwd);
	291	}
	292	}
0c20802c	293
2234212c	294	if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	295	BIO_printf(bio_err,
7e1b7485 RS	296	"%s: Signature file specified for non verify\n", prog);
0f113f3e MC	297	goto end;
	298	}
	299
2234212c	300	if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
7e1b7485 RS	301	BIO_printf(bio_err,
7e1b7485 RS	302	"%s: No signature file specified for verify\n", prog);
0f113f3e MC	303	goto end;
0f113f3e MC	304	}
a9164153	305
0f113f3e	306	if (pkey_op != EVP_PKEY_OP_DERIVE) {
bdd58d98	307	in = bio_open_default(infile, 'r', FORMAT_BINARY);
7e1b7485	308	if (in == NULL)
0f113f3e	309	goto end;
0f113f3e	310	}
bdd58d98	311	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
7e1b7485 RS	312	if (out == NULL)
7e1b7485 RS	313	goto end;
0f113f3e	314
2234212c	315	if (sigfile != NULL) {
0f113f3e	316	BIO *sigbio = BIO_new_file(sigfile, "rb");
2234212c PY	317
2234212c PY	318	if (sigbio == NULL) {
0f113f3e MC	319	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
	320	goto end;
	321	}
	322	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
	323	BIO_free(sigbio);
0c20802c	324	if (siglen < 0) {
0f113f3e MC	325	BIO_printf(bio_err, "Error reading signature data\n");
	326	goto end;
	327	}
	328	}
	329
2234212c	330	if (in != NULL) {
0f113f3e MC	331	/* Read the input data */
0f113f3e MC	332	buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
0c20802c	333	if (buf_inlen < 0) {
0f113f3e	334	BIO_printf(bio_err, "Error reading input Data\n");
a0abb6a1	335	goto end;
0f113f3e MC	336	}
	337	if (rev) {
	338	size_t i;
	339	unsigned char ctmp;
	340	size_t l = (size_t)buf_inlen;
	341	for (i = 0; i < l / 2; i++) {
	342	ctmp = buf_in[i];
	343	buf_in[i] = buf_in[l - 1 - i];
	344	buf_in[l - 1 - i] = ctmp;
	345	}
	346	}
	347	}
	348
a0abb6a1 MC	349	/* Sanity check the input */
	350	if (buf_inlen > EVP_MAX_MD_SIZE
	351	&& (pkey_op == EVP_PKEY_OP_SIGN
	352	\|\| pkey_op == EVP_PKEY_OP_VERIFY
	353	\|\| pkey_op == EVP_PKEY_OP_VERIFYRECOVER)) {
	354	BIO_printf(bio_err,
	355	"Error: The input data looks too long to be a hash\n");
	356	goto end;
	357	}
	358
0f113f3e MC	359	if (pkey_op == EVP_PKEY_OP_VERIFY) {
	360	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
	361	buf_in, (size_t)buf_inlen);
7e1b7485	362	if (rv == 1) {
0f113f3e	363	BIO_puts(out, "Signature Verified Successfully\n");
7e1b7485	364	ret = 0;
2234212c	365	} else {
7e1b7485	366	BIO_puts(out, "Signature Verification Failure\n");
2234212c	367	}
7e1b7485 RS	368	goto end;
7e1b7485 RS	369	}
924ec89a DSH	370	if (kdflen != 0) {
	371	buf_outlen = kdflen;
	372	rv = 1;
	373	} else {
	374	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
	375	buf_in, (size_t)buf_inlen);
	376	}
0c20802c	377	if (rv > 0 && buf_outlen != 0) {
68dc6824 RS	378	buf_out = app_malloc(buf_outlen, "buffer output");
	379	rv = do_keyop(ctx, pkey_op,
	380	buf_out, (size_t *)&buf_outlen,
	381	buf_in, (size_t)buf_inlen);
0f113f3e	382	}
78524149	383	if (rv <= 0) {
f6add6ac JB	384	if (pkey_op != EVP_PKEY_OP_DERIVE) {
	385	BIO_puts(bio_err, "Public Key operation error\n");
	386	} else {
	387	BIO_puts(bio_err, "Key derivation failed\n");
	388	}
0f113f3e MC	389	ERR_print_errors(bio_err);
	390	goto end;
	391	}
	392	ret = 0;
7e1b7485	393
0f113f3e MC	394	if (asn1parse) {
	395	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
	396	ERR_print_errors(bio_err);
2234212c	397	} else if (hexdump) {
0f113f3e	398	BIO_dump(out, (char *)buf_out, buf_outlen);
2234212c	399	} else {
0f113f3e	400	BIO_write(out, buf_out, buf_outlen);
2234212c	401	}
0f113f3e MC	402
0f113f3e MC	403	end:
c5ba2d99	404	EVP_PKEY_CTX_free(ctx);
dd1abd44	405	release_engine(e);
0f113f3e MC	406	BIO_free(in);
0f113f3e MC	407	BIO_free_all(out);
b548a1f1 RS	408	OPENSSL_free(buf_in);
	409	OPENSSL_free(buf_out);
	410	OPENSSL_free(sig);
0c20802c	411	sk_OPENSSL_STRING_free(pkeyopts);
9d1bf5f7	412	sk_OPENSSL_STRING_free(pkeyopts_passin);
0f113f3e	413	return ret;
9e4d0f0b DSH	414	}
9e4d0f0b DSH	415
924ec89a	416	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
0c20802c	417	const char *keyfile, int keyform, int key_type,
9880236e M	418	char passinarg, int pkey_op, ENGINE e,
9880236e M	419	const int engine_impl)
0f113f3e MC	420	{
	421	EVP_PKEY *pkey = NULL;
	422	EVP_PKEY_CTX *ctx = NULL;
9880236e	423	ENGINE *impl = NULL;
0f113f3e MC	424	char *passin = NULL;
	425	int rv = -1;
	426	X509 *x;
	427	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
	428	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
924ec89a	429	&& (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
0f113f3e MC	430	BIO_printf(bio_err, "A private key is needed for this operation\n");
	431	goto end;
	432	}
7e1b7485	433	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e MC	434	BIO_printf(bio_err, "Error getting password\n");
	435	goto end;
	436	}
	437	switch (key_type) {
	438	case KEY_PRIVKEY:
7e1b7485	439	pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
0f113f3e MC	440	break;
	441
	442	case KEY_PUBKEY:
7e1b7485	443	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
0f113f3e MC	444	break;
	445
	446	case KEY_CERT:
a773b52a	447	x = load_cert(keyfile, keyform, "Certificate");
0f113f3e MC	448	if (x) {
	449	pkey = X509_get_pubkey(x);
	450	X509_free(x);
	451	}
	452	break;
	453
924ec89a DSH	454	case KEY_NONE:
924ec89a DSH	455	break;
0f113f3e	456
924ec89a	457	}
0f113f3e	458
9880236e M	459	#ifndef OPENSSL_NO_ENGINE
	460	if (engine_impl)
	461	impl = e;
	462	#endif
0f113f3e	463
2234212c	464	if (kdfalg != NULL) {
924ec89a	465	int kdfnid = OBJ_sn2nid(kdfalg);
b15d5ab6 DSH	466
	467	if (kdfnid == NID_undef) {
	468	kdfnid = OBJ_ln2nid(kdfalg);
f6add6ac JB	469	if (kdfnid == NID_undef) {
	470	BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
	471	kdfalg);
b15d5ab6	472	goto end;
f6add6ac	473	}
b15d5ab6	474	}
924ec89a DSH	475	ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
	476	} else {
	477	if (pkey == NULL)
	478	goto end;
	479	*pkeysize = EVP_PKEY_size(pkey);
	480	ctx = EVP_PKEY_CTX_new(pkey, impl);
	481	EVP_PKEY_free(pkey);
	482	}
0f113f3e	483
96487cdd	484	if (ctx == NULL)
0f113f3e MC	485	goto end;
	486
	487	switch (pkey_op) {
	488	case EVP_PKEY_OP_SIGN:
	489	rv = EVP_PKEY_sign_init(ctx);
	490	break;
	491
	492	case EVP_PKEY_OP_VERIFY:
	493	rv = EVP_PKEY_verify_init(ctx);
	494	break;
	495
	496	case EVP_PKEY_OP_VERIFYRECOVER:
	497	rv = EVP_PKEY_verify_recover_init(ctx);
	498	break;
	499
	500	case EVP_PKEY_OP_ENCRYPT:
	501	rv = EVP_PKEY_encrypt_init(ctx);
	502	break;
	503
	504	case EVP_PKEY_OP_DECRYPT:
	505	rv = EVP_PKEY_decrypt_init(ctx);
	506	break;
	507
	508	case EVP_PKEY_OP_DERIVE:
	509	rv = EVP_PKEY_derive_init(ctx);
	510	break;
	511	}
	512
	513	if (rv <= 0) {
	514	EVP_PKEY_CTX_free(ctx);
	515	ctx = NULL;
	516	}
	517
	518	end:
b548a1f1	519	OPENSSL_free(passin);
0f113f3e MC	520	return ctx;
	521
	522	}
9e4d0f0b	523
0c20802c	524	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
f6add6ac	525	ENGINE *e)
0f113f3e MC	526	{
0f113f3e MC	527	EVP_PKEY *peer = NULL;
f6add6ac	528	ENGINE *engine = NULL;
0f113f3e	529	int ret;
0f113f3e	530
0c20802c VD	531	if (peerform == FORMAT_ENGINE)
	532	engine = e;
	533	peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
2234212c	534	if (peer == NULL) {
0f113f3e	535	BIO_printf(bio_err, "Error reading peer key %s\n", file);
7e1b7485	536	ERR_print_errors(bio_err);
0f113f3e MC	537	return 0;
	538	}
	539
	540	ret = EVP_PKEY_derive_set_peer(ctx, peer);
	541
	542	EVP_PKEY_free(peer);
	543	if (ret <= 0)
7e1b7485	544	ERR_print_errors(bio_err);
0f113f3e MC	545	return ret;
0f113f3e MC	546	}
b010b7c4 DSH	547
b010b7c4 DSH	548	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
0f113f3e	549	unsigned char out, size_t poutlen,
cc696296	550	const unsigned char *in, size_t inlen)
0f113f3e MC	551	{
	552	int rv = 0;
	553	switch (pkey_op) {
	554	case EVP_PKEY_OP_VERIFYRECOVER:
	555	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
	556	break;
	557
	558	case EVP_PKEY_OP_SIGN:
	559	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
	560	break;
	561
	562	case EVP_PKEY_OP_ENCRYPT:
	563	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
	564	break;
	565
	566	case EVP_PKEY_OP_DECRYPT:
	567	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
	568	break;
	569
	570	case EVP_PKEY_OP_DERIVE:
	571	rv = EVP_PKEY_derive(ctx, out, poutlen);
	572	break;
	573
	574	}
	575	return rv;
	576	}