diff --git a/sys/checksum/crc8.c b/sys/checksum/crc8.c
new file mode 100644
index 0000000000..5a502c27a6
--- /dev/null
+++ b/sys/checksum/crc8.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2018 Gunar Schorcht
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     sys_checksum_crc8
+ * @brief       CRC-8 checksum algorithms
+ *
+ * @{
+ *
+ * @file
+ * @brief   CRC-8 implementation
+ *
+ * @author  Gunar Schorcht <gunar@schorcht.net>
+ */
+
+#include <stdbool.h>
+#include "checksum/crc8.h"
+
+uint8_t crc8(const uint8_t *data, size_t len, uint8_t g_polynom, uint8_t crc)
+{
+    /* iterate over all bytes */
+    for (size_t i=0; i < len; i++)
+    {
+        crc ^= data[i];
+
+        for (int i = 0; i < 8; i++)
+        {
+            bool xor = crc & 0x80;
+            crc = crc << 1;
+            crc = xor ? crc ^ g_polynom : crc;
+        }
+    }
+
+    return crc;
+}
+
+/** @} */
diff --git a/sys/include/checksum/crc8.h b/sys/include/checksum/crc8.h
new file mode 100644
index 0000000000..94523eed38
--- /dev/null
+++ b/sys/include/checksum/crc8.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2018 Gunar Schorcht
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    sys_checksum_crc8     CRC-8
+ * @ingroup     sys_checksum
+ * @brief       CRC-8 checksum algorithms
+ *
+ * @{
+ *
+ * @file
+ * @brief   CRC-8 definitions
+ *
+ * @author  Gunar Schorcht <gunar@schorcht.net>
+ */
+#ifndef CHECKSUM_CRC8_H
+#define CHECKSUM_CRC8_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Calculate CRC-8
+ *
+ * @param[in] data  Start of memory area to checksum
+ * @param[in] len   Number of bytes in @p buf to calculate checksum for
+ * @param[in] poly  The generator polynomial for the checksum
+ * @param[in] seed  The seed (starting value) for the checksum
+ *
+ * @note Reflected inputs or outputs and final XOR must be realized
+ *       by the caller if needed.
+ *
+ * @return  Checksum of the specified memory area.
+ */
+uint8_t crc8(const uint8_t *data, size_t len, uint8_t poly, uint8_t seed);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CHECKSUM_CRC8_H */
+/** @} */