1 files changed, 15 insertions, 0 deletions
diff --git a/include/crypto/ctr.h b/include/crypto/ctr.h
new file mode 100644
index 000000000..06984a26c
--- /dev/null
+++ b/include/crypto/ctr.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * CTR: Counter mode
+ *
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_CTR_H
+#define _CRYPTO_CTR_H
+
+#define CTR_RFC3686_NONCE_SIZE 4
+#define CTR_RFC3686_IV_SIZE 8
+#define CTR_RFC3686_BLOCK_SIZE 16
+
+#endif  /* _CRYPTO_CTR_H */