| /* |
| * Copyright 1995-2020 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 <time.h> |
| #include "apps.h" |
| #include "progs.h" |
| #include <openssl/bio.h> |
| #include <openssl/err.h> |
| #include <openssl/rsa.h> |
| #include <openssl/evp.h> |
| #include <openssl/x509.h> |
| #include <openssl/pem.h> |
| #include <openssl/bn.h> |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT, |
| OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN, |
| OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT, |
| /* Do not change the order here; see case statements below */ |
| OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG, |
| OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER |
| } OPTION_CHOICE; |
| |
| const OPTIONS rsa_options[] = { |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"}, |
| {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"}, |
| {"in", OPT_IN, 's', "Input file"}, |
| {"out", OPT_OUT, '>', "Output file"}, |
| {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"}, |
| {"pubout", OPT_PUBOUT, '-', "Output a public key"}, |
| {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, |
| {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, |
| {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"}, |
| {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"}, |
| {"noout", OPT_NOOUT, '-', "Don't print key out"}, |
| {"text", OPT_TEXT, '-', "Print the key in text"}, |
| {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"}, |
| {"check", OPT_CHECK, '-', "Verify key consistency"}, |
| {"", OPT_CIPHER, '-', "Any supported cipher"}, |
| #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4) |
| {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"}, |
| {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"}, |
| {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"}, |
| #endif |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| {NULL} |
| }; |
| |
| int rsa_main(int argc, char **argv) |
| { |
| ENGINE *e = NULL; |
| BIO *out = NULL; |
| RSA *rsa = NULL; |
| const EVP_CIPHER *enc = NULL; |
| char *infile = NULL, *outfile = NULL, *prog; |
| char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL; |
| int i, private = 0; |
| int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0; |
| int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1; |
| #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4) |
| int pvk_encr = 2; |
| #endif |
| OPTION_CHOICE o; |
| |
| prog = opt_init(argc, argv, rsa_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(rsa_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_ANY, &outformat)) |
| goto opthelp; |
| break; |
| case OPT_OUT: |
| outfile = opt_arg(); |
| 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_PUBIN: |
| pubin = 1; |
| break; |
| case OPT_PUBOUT: |
| pubout = 1; |
| break; |
| case OPT_RSAPUBKEY_IN: |
| pubin = 2; |
| break; |
| case OPT_RSAPUBKEY_OUT: |
| pubout = 2; |
| break; |
| case OPT_PVK_STRONG: /* pvk_encr:= 2 */ |
| case OPT_PVK_WEAK: /* pvk_encr:= 1 */ |
| case OPT_PVK_NONE: /* pvk_encr:= 0 */ |
| #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4) |
| pvk_encr = (o - OPT_PVK_NONE); |
| #endif |
| break; |
| case OPT_NOOUT: |
| noout = 1; |
| break; |
| case OPT_TEXT: |
| text = 1; |
| break; |
| case OPT_MODULUS: |
| modulus = 1; |
| break; |
| case OPT_CHECK: |
| check = 1; |
| break; |
| case OPT_CIPHER: |
| if (!opt_cipher(opt_unknown(), &enc)) |
| goto opthelp; |
| break; |
| } |
| } |
| argc = opt_num_rest(); |
| if (argc != 0) |
| goto opthelp; |
| |
| private = (text && !pubin) || (!pubout && !noout) ? 1 : 0; |
| |
| if (!app_passwd(passinarg, passoutarg, &passin, &passout)) { |
| BIO_printf(bio_err, "Error getting passwords\n"); |
| goto end; |
| } |
| if (check && pubin) { |
| BIO_printf(bio_err, "Only private keys can be checked\n"); |
| goto end; |
| } |
| |
| { |
| EVP_PKEY *pkey; |
| |
| if (pubin) { |
| int tmpformat = -1; |
| if (pubin == 2) { |
| if (informat == FORMAT_PEM) |
| tmpformat = FORMAT_PEMRSA; |
| else if (informat == FORMAT_ASN1) |
| tmpformat = FORMAT_ASN1RSA; |
| } else { |
| tmpformat = informat; |
| } |
| |
| pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key"); |
| } else { |
| pkey = load_key(infile, informat, 1, passin, e, "Private Key"); |
| } |
| |
| if (pkey != NULL) |
| rsa = EVP_PKEY_get1_RSA(pkey); |
| EVP_PKEY_free(pkey); |
| } |
| |
| if (rsa == NULL) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| out = bio_open_owner(outfile, outformat, private); |
| if (out == NULL) |
| goto end; |
| |
| if (text) { |
| assert(pubin || private); |
| if (!RSA_print(out, rsa, 0)) { |
| perror(outfile); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (modulus) { |
| const BIGNUM *n; |
| RSA_get0_key(rsa, &n, NULL, NULL); |
| BIO_printf(out, "Modulus="); |
| BN_print(out, n); |
| BIO_printf(out, "\n"); |
| } |
| |
| if (check) { |
| int r = RSA_check_key_ex(rsa, NULL); |
| |
| if (r == 1) { |
| BIO_printf(out, "RSA key ok\n"); |
| } else if (r == 0) { |
| unsigned long err; |
| |
| while ((err = ERR_peek_error()) != 0 && |
| ERR_GET_LIB(err) == ERR_LIB_RSA && |
| ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY_EX && |
| ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) { |
| BIO_printf(out, "RSA key error: %s\n", |
| ERR_reason_error_string(err)); |
| ERR_get_error(); /* remove err from error stack */ |
| } |
| } else if (r == -1) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (noout) { |
| ret = 0; |
| goto end; |
| } |
| BIO_printf(bio_err, "writing RSA key\n"); |
| if (outformat == FORMAT_ASN1) { |
| if (pubout || pubin) { |
| if (pubout == 2) |
| i = i2d_RSAPublicKey_bio(out, rsa); |
| else |
| i = i2d_RSA_PUBKEY_bio(out, rsa); |
| } else { |
| assert(private); |
| i = i2d_RSAPrivateKey_bio(out, rsa); |
| } |
| } else if (outformat == FORMAT_PEM) { |
| if (pubout || pubin) { |
| if (pubout == 2) |
| i = PEM_write_bio_RSAPublicKey(out, rsa); |
| else |
| i = PEM_write_bio_RSA_PUBKEY(out, rsa); |
| } else { |
| assert(private); |
| i = PEM_write_bio_RSAPrivateKey(out, rsa, |
| enc, NULL, 0, NULL, passout); |
| } |
| #ifndef OPENSSL_NO_DSA |
| } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { |
| EVP_PKEY *pk; |
| pk = EVP_PKEY_new(); |
| if (pk == NULL) |
| goto end; |
| |
| EVP_PKEY_set1_RSA(pk, rsa); |
| if (outformat == FORMAT_PVK) { |
| if (pubin) { |
| BIO_printf(bio_err, "PVK form impossible with public key input\n"); |
| EVP_PKEY_free(pk); |
| goto end; |
| } |
| assert(private); |
| # ifdef OPENSSL_NO_RC4 |
| BIO_printf(bio_err, "PVK format not supported\n"); |
| EVP_PKEY_free(pk); |
| goto end; |
| # else |
| i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); |
| # endif |
| } else if (pubin || pubout) { |
| i = i2b_PublicKey_bio(out, pk); |
| } else { |
| assert(private); |
| i = i2b_PrivateKey_bio(out, pk); |
| } |
| EVP_PKEY_free(pk); |
| #endif |
| } else { |
| BIO_printf(bio_err, "bad output format specified for outfile\n"); |
| goto end; |
| } |
| if (i <= 0) { |
| BIO_printf(bio_err, "unable to write key\n"); |
| ERR_print_errors(bio_err); |
| } else { |
| ret = 0; |
| } |
| end: |
| release_engine(e); |
| BIO_free_all(out); |
| RSA_free(rsa); |
| OPENSSL_free(passin); |
| OPENSSL_free(passout); |
| return ret; |
| } |