contents of zip

scripts/hash.js

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+// Use strict
+"use strict";
+
+
+// Classes
+
+// Hash class
+class Hash {
+
+	// Public
+	
+		// Constructor
+		constructor(data) {
+		
+			// Check if creating hash from data was successful
+			this.bytes = Blake2b.compute(Hash.HASH_LENGTH, Common.mergeArrays(data), new Uint8Array([]));
+			
+			if(this.bytes === Blake2b.OPERATION_FAILED) {
+			
+				// Throw error
+				throw "Creating hash failed.";
+			}
+		}
+		
+		// Compare
+		compare(hash) {
+		
+			// Go through all bytes in the hash
+			for(var i = 0; i < Hash.HASH_LENGTH; ++i) {
+			
+				// Get bytes
+				var byte = this.getBytes()[i];
+				var otherByte = hash.getBytes()[i];
+			
+				// Check if byte is greater than the other
+				if(byte > otherByte)
+				
+					// Return sort greater than
+					return Common.SORT_GREATER_THAN;
+				
+				// Otherwise check if byte is less than the other
+				else if(byte < otherByte)
+				
+					// Return sort less than
+					return Common.SORT_LESS_THAN;
+			}
+			
+			// Return sort equal
+			return Common.SORT_EQUAL;
+		}
+		
+		// Serialize
+		serialize() {
+		
+			// Return serialized hash
+			return Common.toHexString(this.getBytes());
+		}
+	
+	// Private
+	
+		// Get bytes
+		getBytes() {
+		
+			// Return bytes
+			return this.bytes;
+		}
+	
+		// Hash length
+		static get HASH_LENGTH() {
+		
+			// Return hash length
+			return 32;
+		}
+}
+
+
+// Main function
+
+// Set global object's hash
+globalThis["Hash"] = Hash;