2 * Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
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
10 #include <openssl/opensslconf.h>
14 #include <openssl/err.h>
15 #include <openssl/pem.h>
16 #include <openssl/rsa.h>
27 typedef enum OPTION_choice {
28 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
29 OPT_ENGINE, OPT_IN, OPT_OUT, OPT_ASN1PARSE, OPT_HEXDUMP,
30 OPT_RAW, OPT_OAEP, OPT_SSL, OPT_PKCS, OPT_X931,
31 OPT_SIGN, OPT_VERIFY, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
32 OPT_PUBIN, OPT_CERTIN, OPT_INKEY, OPT_PASSIN, OPT_KEYFORM,
36 const OPTIONS rsautl_options[] = {
37 {"help", OPT_HELP, '-', "Display this summary"},
38 {"in", OPT_IN, '<', "Input file"},
39 {"out", OPT_OUT, '>', "Output file"},
40 {"inkey", OPT_INKEY, 's', "Input key"},
41 {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
42 {"pubin", OPT_PUBIN, '-', "Input is an RSA public"},
43 {"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"},
44 {"ssl", OPT_SSL, '-', "Use SSL v2 padding"},
45 {"raw", OPT_RAW, '-', "Use no padding"},
46 {"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"},
47 {"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"},
48 {"sign", OPT_SIGN, '-', "Sign with private key"},
49 {"verify", OPT_VERIFY, '-', "Verify with public key"},
50 {"asn1parse", OPT_ASN1PARSE, '-',
51 "Run output through asn1parse; useful with -verify"},
52 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
53 {"x931", OPT_X931, '-', "Use ANSI X9.31 padding"},
54 {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
55 {"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
56 {"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
57 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
59 #ifndef OPENSSL_NO_ENGINE
60 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
65 int rsautl_main(int argc, char **argv)
67 BIO *in = NULL, *out = NULL;
69 EVP_PKEY *pkey = NULL;
72 char *infile = NULL, *outfile = NULL, *keyfile = NULL;
73 char *passinarg = NULL, *passin = NULL, *prog;
74 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
75 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
76 int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1;
77 int rsa_outlen = 0, hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
80 prog = opt_init(argc, argv, rsautl_options);
81 while ((o = opt_next()) != OPT_EOF) {
86 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
89 opt_help(rsautl_options);
93 if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyformat))
103 e = setup_engine(opt_arg(), 0);
112 pad = RSA_NO_PADDING;
115 pad = RSA_PKCS1_OAEP_PADDING;
118 pad = RSA_SSLV23_PADDING;
121 pad = RSA_PKCS1_PADDING;
124 pad = RSA_X931_PADDING;
131 rsa_mode = RSA_VERIFY;
137 rsa_mode = RSA_ENCRYPT;
140 rsa_mode = RSA_DECRYPT;
144 key_type = KEY_PUBKEY;
153 passinarg = opt_arg();
161 argc = opt_num_rest();
165 if (need_priv && (key_type != KEY_PRIVKEY)) {
166 BIO_printf(bio_err, "A private key is needed for this operation\n");
170 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
171 BIO_printf(bio_err, "Error getting password\n");
177 pkey = load_key(keyfile, keyformat, 0, passin, e, "Private Key");
181 pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "Public Key");
185 x = load_cert(keyfile, keyformat, "Certificate");
187 pkey = X509_get_pubkey(x);
196 rsa = EVP_PKEY_get1_RSA(pkey);
200 BIO_printf(bio_err, "Error getting RSA key\n");
201 ERR_print_errors(bio_err);
205 in = bio_open_default(infile, 'r', FORMAT_BINARY);
208 out = bio_open_default(outfile, 'w', FORMAT_BINARY);
212 keysize = RSA_size(rsa);
214 rsa_in = app_malloc(keysize * 2, "hold rsa key");
215 rsa_out = app_malloc(keysize, "output rsa key");
217 /* Read the input data */
218 rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
220 BIO_printf(bio_err, "Error reading input Data\n");
226 for (i = 0; i < rsa_inlen / 2; i++) {
228 rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
229 rsa_in[rsa_inlen - 1 - i] = ctmp;
235 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
240 RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
244 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
249 RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
253 if (rsa_outlen < 0) {
254 BIO_printf(bio_err, "RSA operation error\n");
255 ERR_print_errors(bio_err);
260 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
261 ERR_print_errors(bio_err);
263 } else if (hexdump) {
264 BIO_dump(out, (char *)rsa_out, rsa_outlen);
266 BIO_write(out, rsa_out, rsa_outlen);
273 OPENSSL_free(rsa_in);
274 OPENSSL_free(rsa_out);
275 OPENSSL_free(passin);