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34 #include "krb5_locl.h"
36 int _krb5_AES_SHA1_string_to_default_iterator = 4096;
38 static krb5_error_code
39 AES_SHA1_string_to_key(krb5_context context,
48 struct _krb5_encryption_type *et;
49 struct _krb5_key_data kd;
51 if (opaque.length == 0)
52 iter = _krb5_AES_SHA1_string_to_default_iterator;
53 else if (opaque.length == 4) {
55 _krb5_get_int(opaque.data, &v, 4);
58 return KRB5_PROG_KEYTYPE_NOSUPP; /* XXX */
60 et = _krb5_find_enctype(enctype);
62 return KRB5_PROG_KEYTYPE_NOSUPP;
67 return krb5_enomem(context);
68 kd.key->keytype = enctype;
69 ret = krb5_data_alloc(&kd.key->keyvalue, et->keytype->size);
71 krb5_set_error_message (context, ret, N_("malloc: out of memory", ""));
75 ret = PKCS5_PBKDF2_HMAC(password.data, password.length,
76 salt.saltvalue.data, salt.saltvalue.length,
79 et->keytype->size, kd.key->keyvalue.data);
81 _krb5_free_key_data(context, &kd, et);
82 krb5_set_error_message(context, KRB5_PROG_KEYTYPE_NOSUPP,
83 "Error calculating s2k");
84 return KRB5_PROG_KEYTYPE_NOSUPP;
87 ret = _krb5_derive_key(context, et, &kd, "kerberos", strlen("kerberos"));
89 ret = krb5_copy_keyblock_contents(context, kd.key, key);
90 _krb5_free_key_data(context, &kd, et);
95 struct salt_type _krb5_AES_SHA1_salt[] = {
99 AES_SHA1_string_to_key