added lbc algo

js/cryptutil.js

@@ -55,11 +55,15 @@ function hashLbry(blockHeader){
 	var hash = doublesha(blockHeader)
 
 	// sha 512
+	var tmp = crypto.createHash("sha512").update(hash).digest();
 
+	//ripemd160	MARTIN FIX DETTE
 
-	//ripemd160
+	var rm1 = crypto.createHash("rmd160").update(tmp[0]).digest();
+	var rm2 = crypto.createHash("rmd160").update(tmp[tmp.length/2]).digest();
 
 	// double sha256
+	var hash = doublesha(rm1+rm2)
 
 	return hash;
 }