diff --git a/ap/os/linux/linux-3.4.x/crypto/ripemd.h b/ap/os/linux/linux-3.4.x/crypto/ripemd.h
new file mode 100644
index 0000000..c57a2d4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/crypto/ripemd.h
@@ -0,0 +1,43 @@
+/*
+ * Common values for RIPEMD algorithms
+ */
+
+#ifndef _CRYPTO_RMD_H
+#define _CRYPTO_RMD_H
+
+#define RMD128_DIGEST_SIZE      16
+#define RMD128_BLOCK_SIZE       64
+
+#define RMD160_DIGEST_SIZE      20
+#define RMD160_BLOCK_SIZE       64
+
+#define RMD256_DIGEST_SIZE      32
+#define RMD256_BLOCK_SIZE       64
+
+#define RMD320_DIGEST_SIZE      40
+#define RMD320_BLOCK_SIZE       64
+
+/* initial values  */
+#define RMD_H0  0x67452301UL
+#define RMD_H1  0xefcdab89UL
+#define RMD_H2  0x98badcfeUL
+#define RMD_H3  0x10325476UL
+#define RMD_H4  0xc3d2e1f0UL
+#define RMD_H5  0x76543210UL
+#define RMD_H6  0xfedcba98UL
+#define RMD_H7  0x89abcdefUL
+#define RMD_H8  0x01234567UL
+#define RMD_H9  0x3c2d1e0fUL
+
+/* constants */
+#define RMD_K1  0x00000000UL
+#define RMD_K2  0x5a827999UL
+#define RMD_K3  0x6ed9eba1UL
+#define RMD_K4  0x8f1bbcdcUL
+#define RMD_K5  0xa953fd4eUL
+#define RMD_K6  0x50a28be6UL
+#define RMD_K7  0x5c4dd124UL
+#define RMD_K8  0x6d703ef3UL
+#define RMD_K9  0x7a6d76e9UL
+
+#endif