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- /*
- * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (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 <stdio.h>
- #include <string.h>
- #include "apps.h"
- #include "progs.h"
- #include <openssl/pem.h>
- #include <openssl/err.h>
- #include <openssl/evp.h>
- typedef enum OPTION_choice {
- OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
- OPT_INFORM, OPT_OUTFORM, OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE,
- OPT_IN, OPT_OUT, OPT_PUBIN, OPT_PUBOUT, OPT_TEXT_PUB,
- OPT_TEXT, OPT_NOOUT, OPT_MD, OPT_TRADITIONAL, OPT_CHECK, OPT_PUB_CHECK
- } OPTION_CHOICE;
- const OPTIONS pkey_options[] = {
- {"help", OPT_HELP, '-', "Display this summary"},
- {"inform", OPT_INFORM, 'f', "Input format (DER or PEM)"},
- {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"},
- {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
- {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
- {"in", OPT_IN, 's', "Input key"},
- {"out", OPT_OUT, '>', "Output file"},
- {"pubin", OPT_PUBIN, '-',
- "Read public key from input (default is private key)"},
- {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
- {"text_pub", OPT_TEXT_PUB, '-', "Only output public key components"},
- {"text", OPT_TEXT, '-', "Output in plaintext as well"},
- {"noout", OPT_NOOUT, '-', "Don't output the key"},
- {"", OPT_MD, '-', "Any supported cipher"},
- {"traditional", OPT_TRADITIONAL, '-',
- "Use traditional format for private keys"},
- #ifndef OPENSSL_NO_ENGINE
- {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
- #endif
- {"check", OPT_CHECK, '-', "Check key consistency"},
- {"pubcheck", OPT_PUB_CHECK, '-', "Check public key consistency"},
- {NULL}
- };
- int pkey_main(int argc, char **argv)
- {
- BIO *in = NULL, *out = NULL;
- ENGINE *e = NULL;
- EVP_PKEY *pkey = NULL;
- const EVP_CIPHER *cipher = NULL;
- char *infile = NULL, *outfile = NULL, *passin = NULL, *passout = NULL;
- char *passinarg = NULL, *passoutarg = NULL, *prog;
- OPTION_CHOICE o;
- int informat = FORMAT_PEM, outformat = FORMAT_PEM;
- int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0, ret = 1;
- int private = 0, traditional = 0, check = 0, pub_check = 0;
- prog = opt_init(argc, argv, pkey_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(pkey_options);
- ret = 0;
- goto end;
- case OPT_INFORM:
- if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
- goto opthelp;
- break;
- case OPT_OUTFORM:
- if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
- goto opthelp;
- break;
- case OPT_PASSIN:
- passinarg = opt_arg();
- break;
- case OPT_PASSOUT:
- passoutarg = opt_arg();
- break;
- case OPT_ENGINE:
- e = setup_engine(opt_arg(), 0);
- break;
- case OPT_IN:
- infile = opt_arg();
- break;
- case OPT_OUT:
- outfile = opt_arg();
- break;
- case OPT_PUBIN:
- pubin = pubout = pubtext = 1;
- break;
- case OPT_PUBOUT:
- pubout = 1;
- break;
- case OPT_TEXT_PUB:
- pubtext = text = 1;
- break;
- case OPT_TEXT:
- text = 1;
- break;
- case OPT_NOOUT:
- noout = 1;
- break;
- case OPT_TRADITIONAL:
- traditional = 1;
- break;
- case OPT_CHECK:
- check = 1;
- break;
- case OPT_PUB_CHECK:
- pub_check = 1;
- break;
- case OPT_MD:
- if (!opt_cipher(opt_unknown(), &cipher))
- goto opthelp;
- }
- }
- argc = opt_num_rest();
- if (argc != 0)
- goto opthelp;
- private = !noout && !pubout ? 1 : 0;
- if (text && !pubtext)
- private = 1;
- if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
- BIO_printf(bio_err, "Error getting passwords\n");
- goto end;
- }
- out = bio_open_owner(outfile, outformat, private);
- if (out == NULL)
- goto end;
- if (pubin)
- pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
- else
- pkey = load_key(infile, informat, 1, passin, e, "key");
- if (pkey == NULL)
- goto end;
- if (check || pub_check) {
- int r;
- EVP_PKEY_CTX *ctx;
- ctx = EVP_PKEY_CTX_new(pkey, e);
- if (ctx == NULL) {
- ERR_print_errors(bio_err);
- goto end;
- }
- if (check)
- r = EVP_PKEY_check(ctx);
- else
- r = EVP_PKEY_public_check(ctx);
- if (r == 1) {
- BIO_printf(out, "Key is valid\n");
- } else {
- /*
- * Note: at least for RSA keys if this function returns
- * -1, there will be no error reasons.
- */
- unsigned long err;
- BIO_printf(out, "Key is invalid\n");
- while ((err = ERR_peek_error()) != 0) {
- BIO_printf(out, "Detailed error: %s\n",
- ERR_reason_error_string(err));
- ERR_get_error(); /* remove err from error stack */
- }
- }
- EVP_PKEY_CTX_free(ctx);
- }
- if (!noout) {
- if (outformat == FORMAT_PEM) {
- if (pubout) {
- if (!PEM_write_bio_PUBKEY(out, pkey))
- goto end;
- } else {
- assert(private);
- if (traditional) {
- if (!PEM_write_bio_PrivateKey_traditional(out, pkey, cipher,
- NULL, 0, NULL,
- passout))
- goto end;
- } else {
- if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
- NULL, 0, NULL, passout))
- goto end;
- }
- }
- } else if (outformat == FORMAT_ASN1) {
- if (pubout) {
- if (!i2d_PUBKEY_bio(out, pkey))
- goto end;
- } else {
- assert(private);
- if (!i2d_PrivateKey_bio(out, pkey))
- goto end;
- }
- } else {
- BIO_printf(bio_err, "Bad format specified for key\n");
- goto end;
- }
- }
- if (text) {
- if (pubtext) {
- if (EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
- goto end;
- } else {
- assert(private);
- if (EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)
- goto end;
- }
- }
- ret = 0;
- end:
- if (ret != 0)
- ERR_print_errors(bio_err);
- EVP_PKEY_free(pkey);
- release_engine(e);
- BIO_free_all(out);
- BIO_free(in);
- OPENSSL_free(passin);
- OPENSSL_free(passout);
- return ret;
- }
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