| /* |
| * Copyright 2002-2020 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 <openssl/opensslconf.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "apps.h" |
| #include "progs.h" |
| #include <openssl/bio.h> |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/pem.h> |
| |
| static OPT_PAIR conv_forms[] = { |
| {"compressed", POINT_CONVERSION_COMPRESSED}, |
| {"uncompressed", POINT_CONVERSION_UNCOMPRESSED}, |
| {"hybrid", POINT_CONVERSION_HYBRID}, |
| {NULL} |
| }; |
| |
| static OPT_PAIR param_enc[] = { |
| {"named_curve", OPENSSL_EC_NAMED_CURVE}, |
| {"explicit", 0}, |
| {NULL} |
| }; |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT, |
| OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT, |
| OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER, |
| OPT_NO_PUBLIC, OPT_CHECK |
| } OPTION_CHOICE; |
| |
| const OPTIONS ec_options[] = { |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"in", OPT_IN, 's', "Input file"}, |
| {"inform", OPT_INFORM, 'f', "Input format - DER or PEM"}, |
| {"out", OPT_OUT, '>', "Output file"}, |
| {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, |
| {"noout", OPT_NOOUT, '-', "Don't print key out"}, |
| {"text", OPT_TEXT, '-', "Print the key"}, |
| {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"}, |
| {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"}, |
| {"pubout", OPT_PUBOUT, '-', "Output public key, not private"}, |
| {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"}, |
| {"check", OPT_CHECK, '-', "check key consistency"}, |
| {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, |
| {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, |
| {"param_enc", OPT_PARAM_ENC, 's', |
| "Specifies the way the ec parameters are encoded"}, |
| {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "}, |
| {"", OPT_CIPHER, '-', "Any supported cipher"}, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| {NULL} |
| }; |
| |
| int ec_main(int argc, char **argv) |
| { |
| BIO *in = NULL, *out = NULL; |
| ENGINE *e = NULL; |
| EC_KEY *eckey = NULL; |
| const EC_GROUP *group; |
| const EVP_CIPHER *enc = NULL; |
| point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; |
| char *infile = NULL, *outfile = NULL, *prog; |
| char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL; |
| OPTION_CHOICE o; |
| int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0; |
| int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0; |
| int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0; |
| int no_public = 0, check = 0; |
| |
| prog = opt_init(argc, argv, ec_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(ec_options); |
| ret = 0; |
| goto end; |
| case OPT_INFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat)) |
| goto opthelp; |
| break; |
| case OPT_IN: |
| infile = opt_arg(); |
| break; |
| case OPT_OUTFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) |
| goto opthelp; |
| break; |
| case OPT_OUT: |
| outfile = opt_arg(); |
| break; |
| case OPT_NOOUT: |
| noout = 1; |
| break; |
| case OPT_TEXT: |
| text = 1; |
| break; |
| case OPT_PARAM_OUT: |
| param_out = 1; |
| break; |
| case OPT_PUBIN: |
| pubin = 1; |
| break; |
| case OPT_PUBOUT: |
| pubout = 1; |
| 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_CIPHER: |
| if (!opt_cipher(opt_unknown(), &enc)) |
| goto opthelp; |
| break; |
| case OPT_CONV_FORM: |
| if (!opt_pair(opt_arg(), conv_forms, &i)) |
| goto opthelp; |
| new_form = 1; |
| form = i; |
| break; |
| case OPT_PARAM_ENC: |
| if (!opt_pair(opt_arg(), param_enc, &i)) |
| goto opthelp; |
| new_asn1_flag = 1; |
| asn1_flag = i; |
| break; |
| case OPT_NO_PUBLIC: |
| no_public = 1; |
| break; |
| case OPT_CHECK: |
| check = 1; |
| break; |
| } |
| } |
| argc = opt_num_rest(); |
| if (argc != 0) |
| goto opthelp; |
| |
| private = param_out || pubin || pubout ? 0 : 1; |
| if (text && !pubin) |
| private = 1; |
| |
| if (!app_passwd(passinarg, passoutarg, &passin, &passout)) { |
| BIO_printf(bio_err, "Error getting passwords\n"); |
| goto end; |
| } |
| |
| if (informat != FORMAT_ENGINE) { |
| in = bio_open_default(infile, 'r', informat); |
| if (in == NULL) |
| goto end; |
| } |
| |
| BIO_printf(bio_err, "read EC key\n"); |
| if (informat == FORMAT_ASN1) { |
| if (pubin) |
| eckey = d2i_EC_PUBKEY_bio(in, NULL); |
| else |
| eckey = d2i_ECPrivateKey_bio(in, NULL); |
| } else if (informat == FORMAT_ENGINE) { |
| EVP_PKEY *pkey; |
| if (pubin) |
| pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key"); |
| else |
| pkey = load_key(infile, informat, 1, passin, e, "Private Key"); |
| if (pkey != NULL) { |
| eckey = EVP_PKEY_get1_EC_KEY(pkey); |
| EVP_PKEY_free(pkey); |
| } |
| } else { |
| if (pubin) |
| eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL); |
| else |
| eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin); |
| } |
| if (eckey == NULL) { |
| BIO_printf(bio_err, "unable to load Key\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| out = bio_open_owner(outfile, outformat, private); |
| if (out == NULL) |
| goto end; |
| |
| group = EC_KEY_get0_group(eckey); |
| |
| if (new_form) |
| EC_KEY_set_conv_form(eckey, form); |
| |
| if (new_asn1_flag) |
| EC_KEY_set_asn1_flag(eckey, asn1_flag); |
| |
| if (no_public) |
| EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY); |
| |
| if (text) { |
| assert(pubin || private); |
| if (!EC_KEY_print(out, eckey, 0)) { |
| perror(outfile); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (check) { |
| if (EC_KEY_check_key(eckey) == 1) { |
| BIO_printf(bio_err, "EC Key valid.\n"); |
| } else { |
| BIO_printf(bio_err, "EC Key Invalid!\n"); |
| ERR_print_errors(bio_err); |
| } |
| } |
| |
| if (noout) { |
| ret = 0; |
| goto end; |
| } |
| |
| BIO_printf(bio_err, "writing EC key\n"); |
| if (outformat == FORMAT_ASN1) { |
| if (param_out) { |
| i = i2d_ECPKParameters_bio(out, group); |
| } else if (pubin || pubout) { |
| i = i2d_EC_PUBKEY_bio(out, eckey); |
| } else { |
| assert(private); |
| i = i2d_ECPrivateKey_bio(out, eckey); |
| } |
| } else { |
| if (param_out) { |
| i = PEM_write_bio_ECPKParameters(out, group); |
| } else if (pubin || pubout) { |
| i = PEM_write_bio_EC_PUBKEY(out, eckey); |
| } else { |
| assert(private); |
| i = PEM_write_bio_ECPrivateKey(out, eckey, enc, |
| NULL, 0, NULL, passout); |
| } |
| } |
| |
| if (!i) { |
| BIO_printf(bio_err, "unable to write private key\n"); |
| ERR_print_errors(bio_err); |
| } else { |
| ret = 0; |
| } |
| end: |
| BIO_free(in); |
| BIO_free_all(out); |
| EC_KEY_free(eckey); |
| release_engine(e); |
| OPENSSL_free(passin); |
| OPENSSL_free(passout); |
| return ret; |
| } |
