Implementation of new (draft) hash-to-G2

util/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+  id 'me.champeau.gradle.jmh'
+}
+
 dependencies {
   api 'org.bouncycastle:bcprov-jdk15on'
 

util/src/jmh/java/tech/pegasys/artemis/util/bench/BenchBLS.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2019 ConsenSys AG.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.artemis.util.bench;
+
+import java.util.concurrent.TimeUnit;
+import org.apache.tuweni.bytes.Bytes;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.infra.Blackhole;
+import tech.pegasys.artemis.util.hashToG2.HashToCurve;
+import tech.pegasys.artemis.util.mikuli.G2Point;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+@State(Scope.Benchmark)
+@Fork(value = 1)
+@Warmup(iterations = 2, time = 10)
+@Measurement(iterations = 8, time = 10)
+public class BenchBLS {
+
+  private Bytes message;
+  private Bytes suite = Bytes.fromHexString("0x02");
+
+  @Setup
+  public void setup() {
+    message = Bytes.random(32);
+  }
+
+  @Benchmark
+  public void hashToCurve(Blackhole blackhole) {
+    G2Point result = new G2Point(HashToCurve.hashToG2(message, suite));
+    blackhole.consume(result);
+  }
+}