diff options
Diffstat (limited to 'third_party/heimdal/kdc/string2key.c')
| -rw-r--r-- | third_party/heimdal/kdc/string2key.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/third_party/heimdal/kdc/string2key.c b/third_party/heimdal/kdc/string2key.c new file mode 100644 index 0000000..4b9c62e --- /dev/null +++ b/third_party/heimdal/kdc/string2key.c @@ -0,0 +1,189 @@ +/* + * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "headers.h" +#include <getarg.h> + +int version5; +int version4; +int afs; +char *principal; +char *cell; +char *password; +const char *keytype_str = "des3-cbc-sha1"; +int version; +int help; + +struct getargs args[] = { + { "version5", '5', arg_flag, &version5, "Output Kerberos v5 string-to-key", + NULL }, + { "version4", '4', arg_flag, &version4, "Output Kerberos v4 string-to-key", + NULL }, + { "afs", 'a', arg_flag, &afs, "Output AFS string-to-key", NULL }, + { "cell", 'c', arg_string, &cell, "AFS cell to use", "cell" }, + { "password", 'w', arg_string, &password, "Password to use", "password" }, + { "principal",'p', arg_string, &principal, "Kerberos v5 principal to use", "principal" }, + { "keytype", 'k', arg_string, rk_UNCONST(&keytype_str), "Keytype", NULL }, + { "version", 0, arg_flag, &version, "print version", NULL }, + { "help", 0, arg_flag, &help, NULL, NULL } +}; + +int num_args = sizeof(args) / sizeof(args[0]); + +static void +usage(int status) +{ + arg_printusage (args, num_args, NULL, "password"); + exit(status); +} + +static void +tokey(krb5_context context, + krb5_enctype enctype, + const char *pw, + krb5_salt salt, + const char *label) +{ + krb5_error_code ret; + size_t i; + krb5_keyblock key; + char *e; + + ret = krb5_string_to_key_salt(context, enctype, pw, salt, &key); + if (ret) + krb5_err(context, 1, ret, "krb5_string_to_key_salt"); + ret = krb5_enctype_to_string(context, enctype, &e); + if (ret) + krb5_err(context, 1, ret, "krb5_enctype_to_string"); + printf(label, e); + printf(": "); + for(i = 0; i < key.keyvalue.length; i++) + printf("%02x", ((unsigned char*)key.keyvalue.data)[i]); + printf("\n"); + krb5_free_keyblock_contents(context, &key); + free(e); +} + +int +main(int argc, char **argv) +{ + krb5_context context; + krb5_principal princ; + krb5_salt salt; + int optidx; + char buf[1024]; + krb5_enctype etype; + krb5_error_code ret; + + optidx = krb5_program_setup(&context, argc, argv, args, num_args, NULL); + + if(help) + usage(0); + + if(version){ + print_version (NULL); + return 0; + } + + argc -= optidx; + argv += optidx; + + if (argc > 1) + usage(1); + + if(!version5 && !version4 && !afs) + version5 = 1; + + ret = krb5_string_to_enctype(context, keytype_str, &etype); + if(ret) + krb5_err(context, 1, ret, "krb5_string_to_enctype"); + + if((etype != ETYPE_DES_CBC_CRC && + etype != ETYPE_DES_CBC_MD4 && + etype != ETYPE_DES_CBC_MD5) && + (afs || version4)) { + if(!version5) { + etype = ETYPE_DES_CBC_CRC; + } else { + krb5_errx(context, 1, + "DES is the only valid keytype for AFS and Kerberos 4"); + } + } + + if(version5 && principal == NULL){ + printf("Kerberos v5 principal: "); + if(fgets(buf, sizeof(buf), stdin) == NULL) + return 1; + buf[strcspn(buf, "\r\n")] = '\0'; + principal = estrdup(buf); + } + if(afs && cell == NULL){ + printf("AFS cell: "); + if(fgets(buf, sizeof(buf), stdin) == NULL) + return 1; + buf[strcspn(buf, "\r\n")] = '\0'; + cell = estrdup(buf); + } + if(argv[0]) + password = argv[0]; + if(password == NULL){ + if(UI_UTIL_read_pw_string(buf, sizeof(buf), "Password: ", 0)) + return 1; + password = buf; + } + + if(version5){ + ret = krb5_parse_name(context, principal, &princ); + if (ret) + krb5_err(context, 1, ret, "failed to unparse name: %s", principal); + ret = krb5_get_pw_salt(context, princ, &salt); + if (ret) + krb5_err(context, 1, ret, "failed to get salt for %s", principal); + + tokey(context, etype, password, salt, "Kerberos 5 (%s)"); + krb5_free_salt(context, salt); + } + if(version4){ + salt.salttype = KRB5_PW_SALT; + salt.saltvalue.length = 0; + salt.saltvalue.data = NULL; + tokey(context, ETYPE_DES_CBC_MD5, password, salt, "Kerberos 4"); + } + if(afs){ + salt.salttype = KRB5_AFS3_SALT; + salt.saltvalue.length = strlen(cell); + salt.saltvalue.data = cell; + tokey(context, ETYPE_DES_CBC_MD5, password, salt, "AFS"); + } + return 0; +} |