diff --git a/compiler/cpp/src/md5.h b/compiler/cpp/src/md5.h
new file mode 100644
index 0000000..a0a6e37
--- /dev/null
+++ b/compiler/cpp/src/md5.h
@@ -0,0 +1,45 @@
+/* MD5.H - header file for MD5C.C
+ *
+ * This file has been modified for use in Thrift.
+ */
+
+/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+rights reserved.
+
+License to copy and use this software is granted provided that it
+is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+Algorithm" in all material mentioning or referencing this software
+or this function.
+
+License is also granted to make and use derivative works provided
+that such works are identified as "derived from the RSA Data
+Security, Inc. MD5 Message-Digest Algorithm" in all material
+mentioning or referencing the derived work.
+
+RSA Data Security, Inc. makes no representations concerning either
+the merchantability of this software or the suitability of this
+software for any particular purpose. It is provided "as is"
+without express or implied warranty of any kind.
+
+These notices must be retained in any copies of any part of this
+documentation and/or software.
+ */
+
+#include <stdint.h>
+
+/* MD5 context. */
+typedef struct {
+  uint32_t state[4];                                   /* state (ABCD) */
+  uint32_t count[2];        /* number of bits, modulo 2^64 (lsb first) */
+  unsigned char buffer[64];                            /* input buffer */
+} MD5_CTX;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void MD5Init(MD5_CTX *);
+void MD5Update(MD5_CTX *, unsigned char *, unsigned int);
+void MD5Final(unsigned char [16], MD5_CTX *);
+#ifdef __cplusplus
+}
+#endif