2 * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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15 * documentation and/or other materials provided with the distribution.
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18 * may be used to endorse or promote products derived from this software
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37 RCSID("$Id: string2key.c,v 1.20 2003/03/25 12:28:52 joda Exp $");
45 const char *keytype_str = "des3-cbc-sha1";
49 struct getargs args[] = {
50 { "version5", '5', arg_flag, &version5, "Output Kerberos v5 string-to-key" },
51 { "version4", '4', arg_flag, &version4, "Output Kerberos v4 string-to-key" },
52 { "afs", 'a', arg_flag, &afs, "Output AFS string-to-key" },
53 { "cell", 'c', arg_string, &cell, "AFS cell to use", "cell" },
54 { "password", 'w', arg_string, &password, "Password to use", "password" },
55 { "principal",'p', arg_string, &principal, "Kerberos v5 principal to use", "principal" },
56 { "keytype", 'k', arg_string, &keytype_str, "Keytype" },
57 { "version", 0, arg_flag, &version, "print version" },
58 { "help", 0, arg_flag, &help, NULL }
61 int num_args = sizeof(args) / sizeof(args[0]);
66 arg_printusage (args, num_args, NULL, "password");
71 tokey(krb5_context context,
80 krb5_string_to_key_salt(context, enctype, password, salt, &key);
81 krb5_enctype_to_string(context, enctype, &e);
84 for(i = 0; i < key.keyvalue.length; i++)
85 printf("%02x", ((unsigned char*)key.keyvalue.data)[i]);
87 krb5_free_keyblock_contents(context, &key);
91 main(int argc, char **argv)
101 optind = krb5_program_setup(&context, argc, argv, args, num_args, NULL);
107 print_version (NULL);
117 if(!version5 && !version4 && !afs)
120 ret = krb5_string_to_enctype(context, keytype_str, &etype);
122 krb5_keytype keytype;
125 ret = krb5_string_to_keytype(context, keytype_str, &keytype);
127 krb5_err(context, 1, ret, "%s", keytype_str);
128 ret = krb5_keytype_to_enctypes(context, keytype, &num, &etypes);
130 krb5_err(context, 1, ret, "%s", keytype_str);
132 krb5_errx(context, 1, "there are no encryption types for that keytype");
134 krb5_enctype_to_string(context, etype, &keytype_str);
135 if(num > 1 && version5)
136 krb5_warnx(context, "ambiguous keytype, using %s", keytype_str);
139 if((etype != ETYPE_DES_CBC_CRC &&
140 etype != ETYPE_DES_CBC_MD4 &&
141 etype != ETYPE_DES_CBC_MD5) &&
144 etype = ETYPE_DES_CBC_CRC;
146 krb5_errx(context, 1,
147 "DES is the only valid keytype for AFS and Kerberos 4");
151 if(version5 && principal == NULL){
152 printf("Kerberos v5 principal: ");
153 if(fgets(buf, sizeof(buf), stdin) == NULL)
155 if(buf[strlen(buf) - 1] == '\n')
156 buf[strlen(buf) - 1] = '\0';
157 principal = estrdup(buf);
159 if(afs && cell == NULL){
160 printf("AFS cell: ");
161 if(fgets(buf, sizeof(buf), stdin) == NULL)
163 if(buf[strlen(buf) - 1] == '\n')
164 buf[strlen(buf) - 1] = '\0';
169 if(password == NULL){
170 if(des_read_pw_string(buf, sizeof(buf), "Password: ", 0))
176 krb5_parse_name(context, principal, &princ);
177 krb5_get_pw_salt(context, princ, &salt);
178 tokey(context, etype, password, salt, "Kerberos 5 (%s)");
179 krb5_free_salt(context, salt);
182 salt.salttype = KRB5_PW_SALT;
183 salt.saltvalue.length = 0;
184 salt.saltvalue.data = NULL;
185 tokey(context, ETYPE_DES_CBC_MD5, password, salt, "Kerberos 4");
188 salt.salttype = KRB5_AFS3_SALT;
189 salt.saltvalue.length = strlen(cell);
190 salt.saltvalue.data = cell;
191 tokey(context, ETYPE_DES_CBC_MD5, password, salt, "AFS");