Initial support for qubit

Author: lucasjones

binding.gyp

@@ -15,6 +15,7 @@
                 "groestl.c",
                 "blake.c",
                 "fugue.c",
+                "qubit.c",
                 "sha3/sph_fugue.c",
                 "sha3/aes_helper.c",
                 "sha3/sph_blake.c",

multihashing.cc

@@ -15,6 +15,7 @@ extern "C" {
     #include "groestl.h"
     #include "blake.h"
     #include "fugue.h"
+    #include "qubit.h"
 }
 
 using namespace node;
@@ -312,6 +313,29 @@ Handle<Value> fugue(const Arguments& args) {
     return scope.Close(buff->handle_);
 }
 
+
+Handle<Value> qubit(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 = new char[32];
+    
+    uint32_t input_len = Buffer::Length(target);
+
+    qubit_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());
@@ -325,6 +349,7 @@ void init(Handle<Object> exports) {
     exports->Set(String::NewSymbol("groestl_myriad"), FunctionTemplate::New(groestl_myriad)->GetFunction());
     exports->Set(String::NewSymbol("blake"), FunctionTemplate::New(blake)->GetFunction());
     exports->Set(String::NewSymbol("fugue"), FunctionTemplate::New(fugue)->GetFunction());
+    exports->Set(String::NewSymbol("qubit"), FunctionTemplate::New(qubit)->GetFunction());
 }
 
 NODE_MODULE(multihashing, init)

qubit.c

@@ -0,0 +1,45 @@
+#include "qubit.h"
+
+#include "sha3/sph_cubehash.h"
+#include "sha3/sph_luffa.h"
+#include "sha3/sph_shavite.h"
+#include "sha3/sph_simd.h"
+#include "sha3/sph_echo.h"
+
+void qubit_hash(const char* input, char* output, uint32_t len)
+{
+    sph_luffa512_context    ctx_luffa;
+    sph_cubehash512_context ctx_cubehash;
+    sph_shavite512_context  ctx_shavite;
+    sph_simd512_context     ctx_simd;
+    sph_echo512_context     ctx_echo;
+    
+    char* hash1 = (char*) malloc(64);
+    char* hash2 = (char*) malloc(64);
+    
+    sph_luffa512_init(&ctx_luffa);
+    sph_luffa512(&ctx_luffa, (const void*) input, len);
+    sph_luffa512_close(&ctx_luffa, (void*) hash1); //1
+    
+    sph_cubehash512_init(&ctx_cubehash);
+    sph_cubehash512(&ctx_cubehash, (const void*) hash1, 64); // 1
+    sph_cubehash512_close(&ctx_cubehash, (void*) hash2); // 2
+    
+    sph_shavite512_init(&ctx_shavite);
+    sph_shavite512(&ctx_shavite, (const void*) hash2, 64); // 3
+    sph_shavite512_close(&ctx_shavite, (void*) hash1); // 4
+    
+    sph_simd512_init(&ctx_simd);
+    sph_simd512(&ctx_simd, (const void*) hash1, 64); // 4
+    sph_simd512_close(&ctx_simd, (void*) hash2); // 5
+    
+    sph_echo512_init(&ctx_echo);
+    sph_echo512(&ctx_echo, (const void*) hash2, 64); // 5
+    sph_echo512_close(&ctx_echo, (void*) hash1); // 6
+    
+    memcpy(output, hash1, 32);
+    
+    free(hash1);
+    free(hash2);
+}
+

qubit.h

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