1 files changed, 21 insertions, 0 deletions
diff --git a/include/osmocom/crypt/kdf.h b/include/osmocom/crypt/kdf.h
new file mode 100644
index 00000000..4a3b3b2e
--- /dev/null
+++ b/include/osmocom/crypt/kdf.h
@@ -0,0 +1,21 @@
+#pragma once
+
+/*! \defgroup kdf key derivation functions
+ *  @{
+ * \file kdf.h */
+
+#include <stdint.h>
+
+void osmo_kdf_kc128(const uint8_t* ck, const uint8_t* ik, uint8_t* kc128);
+
+void osmo_kdf_kasme(const uint8_t *ck, const uint8_t *ik, const uint8_t* plmn_id,
+                    const uint8_t *sqn,  const uint8_t *ak, uint8_t *kasme);
+
+void osmo_kdf_enb(const uint8_t *kasme, uint32_t ul_count, uint8_t *kenb);
+
+void osmo_kdf_nh(const uint8_t *kasme, const uint8_t *sync_input, uint8_t *nh);
+
+void osmo_kdf_nas(uint8_t algo_type, uint8_t algo_id, const uint8_t *kasme, uint8_t *knas);
+
+
+/* @} */