From 4f169500df996d0a7a804da77bae07b2ecd0d813 Mon Sep 17 00:00:00 2001
From: Max <msuraev@sysmocom.de>
Date: Thu, 30 Jun 2016 10:39:00 +0200
Subject: Add GEA3 & GEA4 ciphers

Corresponding test code include both official test vectors from the
specs and data from over-the-air tests.

This obsoletes libosmo-crypt-a53 as it was last missing piece
unimplemented in libosmogsm.

Change-Id: I939e4f6b91b4a7c591ef3761fe2d46ed1c2fb2d3
Related: OS#1582
---
 include/osmocom/crypt/gprs_cipher.h |  2 ++
 include/osmocom/gsm/gea.h           | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 include/osmocom/gsm/gea.h

(limited to 'include/osmocom')

diff --git a/include/osmocom/crypt/gprs_cipher.h b/include/osmocom/crypt/gprs_cipher.h
index d2425955..c302f10b 100644
--- a/include/osmocom/crypt/gprs_cipher.h
+++ b/include/osmocom/crypt/gprs_cipher.h
@@ -3,6 +3,8 @@
 #include <osmocom/core/linuxlist.h>
 #include <osmocom/core/utils.h>
 
+#include <stdint.h>
+
 #define GSM0464_CIPH_MAX_BLOCK	1523
 
 /* 3GPP TS 24.008 § 10.5.5.3 */
diff --git a/include/osmocom/gsm/gea.h b/include/osmocom/gsm/gea.h
new file mode 100644
index 00000000..3051101d
--- /dev/null
+++ b/include/osmocom/gsm/gea.h
@@ -0,0 +1,17 @@
+/*
+ * GEA3 header
+ *
+ * See gea.c for details
+ */
+
+#pragma once
+
+#include <osmocom/crypt/gprs_cipher.h>
+
+#include <stdint.h>
+
+int gea3(uint8_t *out, uint16_t len, uint8_t *kc, uint32_t iv,
+	 enum gprs_cipher_direction direct);
+
+int gea4(uint8_t *out, uint16_t len, uint8_t *kc, uint32_t iv,
+	 enum gprs_cipher_direction direct);
-- 
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