2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
15 #include <openssl/err.h>
16 #include <openssl/ssl.h>
18 DEFINE_STACK_OF_CONST(SSL_CIPHER)
20 typedef enum OPTION_choice {
21 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
32 OPT_V, OPT_UPPER_V, OPT_S, OPT_PROV_ENUM
35 const OPTIONS ciphers_options[] = {
36 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cipher]\n"},
38 OPT_SECTION("General"),
39 {"help", OPT_HELP, '-', "Display this summary"},
41 OPT_SECTION("Output"),
42 {"v", OPT_V, '-', "Verbose listing of the SSL/TLS ciphers"},
43 {"V", OPT_UPPER_V, '-', "Even more verbose"},
44 {"stdname", OPT_STDNAME, '-', "Show standard cipher names"},
45 {"convert", OPT_CONVERT, 's', "Convert standard name into OpenSSL name"},
47 OPT_SECTION("Cipher specification"),
48 {"s", OPT_S, '-', "Only supported ciphers"},
49 #ifndef OPENSSL_NO_SSL3
50 {"ssl3", OPT_SSL3, '-', "Ciphers compatible with SSL3"},
52 #ifndef OPENSSL_NO_TLS1
53 {"tls1", OPT_TLS1, '-', "Ciphers compatible with TLS1"},
55 #ifndef OPENSSL_NO_TLS1_1
56 {"tls1_1", OPT_TLS1_1, '-', "Ciphers compatible with TLS1.1"},
58 #ifndef OPENSSL_NO_TLS1_2
59 {"tls1_2", OPT_TLS1_2, '-', "Ciphers compatible with TLS1.2"},
61 #ifndef OPENSSL_NO_TLS1_3
62 {"tls1_3", OPT_TLS1_3, '-', "Ciphers compatible with TLS1.3"},
64 #ifndef OPENSSL_NO_PSK
65 {"psk", OPT_PSK, '-', "Include ciphersuites requiring PSK"},
67 #ifndef OPENSSL_NO_SRP
68 {"srp", OPT_SRP, '-', "Include ciphersuites requiring SRP"},
70 {"ciphersuites", OPT_CIPHERSUITES, 's',
71 "Configure the TLSv1.3 ciphersuites to use"},
75 {"cipher", 0, 0, "Cipher string to decode (optional)"},
79 #ifndef OPENSSL_NO_PSK
80 static unsigned int dummy_psk(SSL *ssl, const char *hint, char *identity,
81 unsigned int max_identity_len,
83 unsigned int max_psk_len)
88 #ifndef OPENSSL_NO_SRP
89 static char *dummy_srp(SSL *ssl, void *arg)
95 int ciphers_main(int argc, char **argv)
99 STACK_OF(SSL_CIPHER) *sk = NULL;
100 const SSL_METHOD *meth = TLS_server_method();
101 int ret = 1, i, verbose = 0, Verbose = 0, use_supported = 0;
103 #ifndef OPENSSL_NO_PSK
106 #ifndef OPENSSL_NO_SRP
110 char *ciphers = NULL, *prog, *convert = NULL, *ciphersuites = NULL;
113 int min_version = 0, max_version = 0;
115 prog = opt_init(argc, argv, ciphers_options);
116 while ((o = opt_next()) != OPT_EOF) {
121 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
124 opt_help(ciphers_options);
131 verbose = Verbose = 1;
137 stdname = verbose = 1;
143 min_version = SSL3_VERSION;
144 max_version = SSL3_VERSION;
147 min_version = TLS1_VERSION;
148 max_version = TLS1_VERSION;
151 min_version = TLS1_1_VERSION;
152 max_version = TLS1_1_VERSION;
155 min_version = TLS1_2_VERSION;
156 max_version = TLS1_2_VERSION;
159 min_version = TLS1_3_VERSION;
160 max_version = TLS1_3_VERSION;
163 #ifndef OPENSSL_NO_PSK
168 #ifndef OPENSSL_NO_SRP
172 case OPT_CIPHERSUITES:
173 ciphersuites = opt_arg();
176 if (!opt_provider(o))
182 argc = opt_num_rest();
189 if (convert != NULL) {
190 BIO_printf(bio_out, "OpenSSL cipher name: %s\n",
191 OPENSSL_cipher_name(convert));
195 ctx = SSL_CTX_new(meth);
198 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
200 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
203 #ifndef OPENSSL_NO_PSK
205 SSL_CTX_set_psk_client_callback(ctx, dummy_psk);
207 #ifndef OPENSSL_NO_SRP
209 SSL_CTX_set_srp_client_pwd_callback(ctx, dummy_srp);
212 if (ciphersuites != NULL && !SSL_CTX_set_ciphersuites(ctx, ciphersuites)) {
213 BIO_printf(bio_err, "Error setting TLSv1.3 ciphersuites\n");
217 if (ciphers != NULL) {
218 if (!SSL_CTX_set_cipher_list(ctx, ciphers)) {
219 BIO_printf(bio_err, "Error in cipher list\n");
228 sk = SSL_get1_supported_ciphers(ssl);
230 sk = SSL_get_ciphers(ssl);
233 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
234 const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);
235 p = SSL_CIPHER_get_name(c);
239 BIO_printf(bio_out, ":");
240 BIO_printf(bio_out, "%s", p);
242 BIO_printf(bio_out, "\n");
245 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
248 c = sk_SSL_CIPHER_value(sk, i);
251 unsigned long id = SSL_CIPHER_get_id(c);
252 int id0 = (int)(id >> 24);
253 int id1 = (int)((id >> 16) & 0xffL);
254 int id2 = (int)((id >> 8) & 0xffL);
255 int id3 = (int)(id & 0xffL);
257 if ((id & 0xff000000L) == 0x03000000L)
258 BIO_printf(bio_out, " 0x%02X,0x%02X - ", id2, id3); /* SSL3
261 BIO_printf(bio_out, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */
264 const char *nm = SSL_CIPHER_standard_name(c);
267 BIO_printf(bio_out, "%-45s - ", nm);
269 BIO_puts(bio_out, SSL_CIPHER_description(c, buf, sizeof(buf)));
276 ERR_print_errors(bio_err);
279 sk_SSL_CIPHER_free(sk);