1 files changed, 60 insertions, 0 deletions
diff --git a/src/lib/crypto/krb/state.c b/src/lib/crypto/krb/state.c
new file mode 100644
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+++ b/src/lib/crypto/krb/state.c
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+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* lib/crypto/krb/state.c */
+/*
+ * Copyright (C) 2001 by the Massachusetts Institute of Technology.
+ * All rights reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+
+ *
+ *
+ *
+ *  * Section 6 (Encryption) of the Kerberos revisions document defines
+ * cipher states to be used to chain encryptions and decryptions
+ * together.  Examples of cipher states include initialization vectors
+ * for CBC encription.    This file contains implementations of
+ * krb5_c_init_state and krb5_c_free_state used by clients of the
+ * Kerberos crypto library.
+ */
+#include "crypto_int.h"
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_init_state (krb5_context context, const krb5_keyblock *key,
+                   krb5_keyusage keyusage, krb5_data *new_state)
+{
+    const struct krb5_keytypes *ktp;
+
+    ktp = find_enctype(key->enctype);
+    if (ktp == NULL)
+        return KRB5_BAD_ENCTYPE;
+    return ktp->enc->init_state(key, keyusage, new_state);
+}
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_free_state(krb5_context context, const krb5_keyblock *key,
+                  krb5_data *state)
+{
+    const struct krb5_keytypes *ktp;
+
+    ktp = find_enctype(key->enctype);
+    if (ktp == NULL)
+        return KRB5_BAD_ENCTYPE;
+    ktp->enc->free_state(state);
+    return 0;
+}