Added nist5 hashing

Author: zone117x

README.md

@@ -7,6 +7,28 @@ node-multi-hashing
 
 Cryptocurrency hashing functions for node.js.
 
+
+Algorithms
+----------
+* quark
+* x11
+* x13
+* nist5
+* scrypt
+* scryptn
+* scryptjane
+* keccak
+* bcrypt
+* skein
+* groestl
+* blake
+* fugue
+* qubit
+* hefty1
+* shavite3
+* cryptonight
+* boolberry
+
 Usage
 -----
 

binding.gyp

@@ -20,6 +20,7 @@
                 "cryptonight.c",
                 "x13.c",
                 "boolberry.cc",
+                "nist5.c",
                 "sha3/sph_hefty1.c",
                 "sha3/sph_fugue.c",
                 "sha3/aes_helper.c",

multihashing.cc

@@ -19,6 +19,7 @@ extern "C" {
     #include "shavite3.h"
     #include "cryptonight.h"
     #include "x13.h"
+    #include "nist5.h"
 }
 
 #include "boolberry.h"
@@ -482,6 +483,28 @@ Handle<Value> boolberry(const Arguments& args) {
     return scope.Close(buff->handle_);
 }
 
+Handle<Value> nist5(const Arguments& args) {
+    HandleScope scope;
+
+    if (args.Length() < 1)
+        return except("You must provide one argument.");
+
+    Local<Object> target = args[0]->ToObject();
+
+    if(!Buffer::HasInstance(target))
+        return except("Argument should be a buffer object.");
+
+    char * input = Buffer::Data(target);
+    char output[32];
+
+    uint32_t input_len = Buffer::Length(target);
+
+    nist5_hash(input, output, input_len);
+
+    Buffer* buff = Buffer::New(output, 32);
+    return scope.Close(buff->handle_);
+}
+
 void init(Handle<Object> exports) {
     exports->Set(String::NewSymbol("quark"), FunctionTemplate::New(quark)->GetFunction());
     exports->Set(String::NewSymbol("x11"), FunctionTemplate::New(x11)->GetFunction());
@@ -501,6 +524,7 @@ void init(Handle<Object> exports) {
     exports->Set(String::NewSymbol("cryptonight"), FunctionTemplate::New(cryptonight)->GetFunction());
     exports->Set(String::NewSymbol("x13"), FunctionTemplate::New(x13)->GetFunction());
     exports->Set(String::NewSymbol("boolberry"), FunctionTemplate::New(boolberry)->GetFunction());
+    exports->Set(String::NewSymbol("nist5"), FunctionTemplate::New(nist5)->GetFunction());
 }
 
 NODE_MODULE(multihashing, init)

nist5.c

@@ -0,0 +1,46 @@
+#include "nist5.h"
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "sha3/sph_blake.h"
+#include "sha3/sph_groestl.h"
+#include "sha3/sph_jh.h"
+#include "sha3/sph_keccak.h"
+#include "sha3/sph_skein.h"
+
+
+void nist5_hash(const char* input, char* output, uint32_t len)
+{
+    sph_blake512_context     ctx_blake;
+    sph_groestl512_context   ctx_groestl;
+    sph_skein512_context     ctx_skein;
+    sph_jh512_context        ctx_jh;
+    sph_keccak512_context    ctx_keccak;
+
+    //these uint512 in the c++ source of the client are backed by an array of uint32
+    uint32_t hash[16];
+
+    sph_blake512_init(&ctx_blake);
+    sph_blake512 (&ctx_blake, input, len);
+    sph_blake512_close (&ctx_blake, hash);
+
+    sph_groestl512_init(&ctx_groestl);
+    sph_groestl512 (&ctx_groestl, hash, 64);
+    sph_groestl512_close(&ctx_groestl, hash);
+
+    sph_jh512_init(&ctx_jh);
+    sph_jh512 (&ctx_jh, hash, 64);
+    sph_jh512_close(&ctx_jh, hash);
+
+    sph_keccak512_init(&ctx_keccak);
+    sph_keccak512 (&ctx_keccak, hash, 64);
+    sph_keccak512_close(&ctx_keccak, hash);
+    
+    sph_skein512_init(&ctx_skein);
+    sph_skein512 (&ctx_skein, hash, 64);
+    sph_skein512_close (&ctx_skein, hash);
+
+    memcpy(output, hash, 32);
+}

nist5.h

@@ -0,0 +1,16 @@
+#ifndef NIST5_H
+#define NIST5_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+void nist5_hash(const char* input, char* output, uint32_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif