diff --git a/binding.gyp b/binding.gyp
index 1b59499..4c4a8e4 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -5,6 +5,7 @@
             "sources": [
                 "src/main.cc",
                 "src/cryptonote_core/cryptonote_format_utils.cpp",
+                "src/common/base58.cpp",
             ],
             "include_dirs": [
                 "src",
diff --git a/src/crypto/keccak.h b/src/crypto/keccak.h
new file mode 100644
index 0000000..4f7f857
--- /dev/null
+++ b/src/crypto/keccak.h
@@ -0,0 +1,26 @@
+// keccak.h
+// 19-Nov-11  Markku-Juhani O. Saarinen <mjos@iki.fi>
+
+#ifndef KECCAK_H
+#define KECCAK_H
+
+#include <stdint.h>
+#include <string.h>
+
+#ifndef KECCAK_ROUNDS
+#define KECCAK_ROUNDS 24
+#endif
+
+#ifndef ROTL64
+#define ROTL64(x, y) (((x) << (y)) | ((x) >> (64 - (y))))
+#endif
+
+// compute a keccak hash (md) of given byte length from "in"
+int keccak(const uint8_t *in, int inlen, uint8_t *md, int mdlen);
+
+// update the state
+void keccakf(uint64_t st[25], int norounds);
+
+void keccak1600(const uint8_t *in, int inlen, uint8_t *md);
+
+#endif