diff --git a/Bindings/Nettle/Cipher/AES.hsc b/Bindings/Nettle/Cipher/AES.hsc
--- a/Bindings/Nettle/Cipher/AES.hsc
+++ b/Bindings/Nettle/Cipher/AES.hsc
@@ -16,7 +16,7 @@
 
 #ccall aes_set_encrypt_key , Ptr <struct aes_ctx> -> CUInt -> Ptr CUChar -> IO ()
 #ccall aes_set_decrypt_key , Ptr <struct aes_ctx> -> CUInt -> Ptr CUChar -> IO ()
-#ccall aes_inver_tkey , Ptr <struct aes_ctx> -> Ptr <struct aes_ctx> -> IO ()
+#ccall aes_invert_key , Ptr <struct aes_ctx> -> Ptr <struct aes_ctx> -> IO ()
 #ccall aes_encrypt , Ptr <struct aes_ctx> -> CUInt -> Ptr CUChar -> Ptr CUChar -> IO ()
 #ccall aes_decrypt , Ptr <struct aes_ctx> -> CUInt -> Ptr CUChar -> Ptr CUChar -> IO ()
 
diff --git a/Bindings/Nettle/PRNG/Yarrow.hsc b/Bindings/Nettle/PRNG/Yarrow.hsc
new file mode 100644
--- /dev/null
+++ b/Bindings/Nettle/PRNG/Yarrow.hsc
@@ -0,0 +1,30 @@
+{-# LANGUAGE ForeignFunctionInterface #-}
+
+#include <bindings.dsl.h>
+#include <nettle/yarrow.h>
+
+module Bindings.Nettle.PRNG.Yarrow where
+#strict_import
+
+#num YARROW256_SEED_FILE_SIZE
+
+#starttype struct yarrow256_ctx
+#stoptype
+
+#starttype struct yarrow_source
+#stoptype
+
+#ccall yarrow256_init , Ptr <struct yarrow256_ctx> -> CUInt -> Ptr <struct yarrow_source> -> IO ()
+#ccall yarrow256_seed , Ptr <struct yarrow256_ctx> -> CUInt -> Ptr CUChar -> IO ()
+#ccall yarrow256_update , Ptr <struct yarrow256_ctx> -> CUInt -> CUInt -> CUInt -> Ptr CUChar -> IO CInt
+#ccall yarrow256_random , Ptr <struct yarrow256_ctx> -> CUInt -> Ptr CUChar -> IO ()
+#ccall yarrow256_is_seeded , Ptr <struct yarrow256_ctx> -> IO CInt
+#ccall yarrow256_needed_sources , Ptr <struct yarrow256_ctx> -> IO CUInt
+#ccall yarrow256_fast_reseed , Ptr <struct yarrow256_ctx> -> IO ()
+#ccall yarrow256_slow_reseed , Ptr <struct yarrow256_ctx> -> IO ()
+
+#starttype struct yarrow_key_event_ctx
+#stoptype
+
+#ccall yarrow_key_event_init , Ptr <struct yarrow_key_event_ctx> -> IO ()
+#ccall yarrow_key_event_estimate , Ptr <struct yarrow_key_event_ctx> -> CUInt -> CUInt -> IO CUInt
diff --git a/bindings-nettle.cabal b/bindings-nettle.cabal
--- a/bindings-nettle.cabal
+++ b/bindings-nettle.cabal
@@ -1,5 +1,5 @@
 name:                bindings-nettle
-version:             0.0
+version:             0.1
 synopsis:            bindings to nettle crypto library
 description:         partial bindings to nettle crypto library
 homepage:            http://floss.scru.org/bindings-nettle
@@ -25,7 +25,9 @@
                  ,     Bindings.Nettle.Cipher.Twofish
                  ,     Bindings.Nettle.Hash.SHA2
                  ,     Bindings.Nettle.Hash.SHA3
+                 ,     Bindings.Nettle.PRNG.Yarrow
   build-depends:       base    > 4  && < 5
+               ,       bindings-DSL
   pkgconfig-depends:   nettle
   build-tools:         hsc2hs
   default-language:    Haskell2010