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74
benchmarks/lib/src/jmh/java/com/amazon/corretto/crypto/provider/benchmarks/CipherReuse.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package com.amazon.corretto.crypto.provider.benchmarks; | ||
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| import com.amazon.corretto.crypto.provider.AmazonCorrettoCryptoProvider; | ||
| import org.openjdk.jmh.annotations.Benchmark; | ||
| import org.openjdk.jmh.annotations.Param; | ||
| import org.openjdk.jmh.annotations.Scope; | ||
| import org.openjdk.jmh.annotations.Setup; | ||
| import org.openjdk.jmh.annotations.State; | ||
| import org.openjdk.jmh.infra.Blackhole; | ||
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| import javax.crypto.Cipher; | ||
| import javax.crypto.SecretKey; | ||
| import javax.crypto.spec.GCMParameterSpec; | ||
| import javax.crypto.spec.SecretKeySpec; | ||
| import java.util.Random; | ||
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| @State(Scope.Thread) | ||
| public class CipherReuse { | ||
| private final static String AES = "AES"; | ||
| private final static String AES_GCM = "AES/GCM/NoPadding"; | ||
| Cipher shared; | ||
| SecretKeySpec key; | ||
| Random random = new Random(); | ||
| byte[] iv = new byte[12]; | ||
| byte[] input = new byte[1000]; | ||
| byte[] keyb = new byte[32]; | ||
| byte[] aad = new byte[100]; | ||
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| @Param({"true", "false"}) | ||
| private boolean newKey; | ||
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| @Setup | ||
| public void setup() throws Exception { | ||
| shared = getAesGcmCipherFromAccp(); | ||
| key = new SecretKeySpec(new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8}, AES); | ||
| random.nextBytes(input); | ||
| random.nextBytes(aad); | ||
| } | ||
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| @Benchmark | ||
| public void newInstance(Blackhole blackhole) throws Exception { | ||
| blackhole.consume(encrypt(getAesGcmCipherFromAccp())); | ||
| } | ||
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| @Benchmark | ||
| public void reuse(Blackhole blackhole) throws Exception { | ||
| blackhole.consume(encrypt(shared)); | ||
| } | ||
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| byte[] encrypt(Cipher cipher) throws Exception { | ||
| iv[0]++; | ||
| final SecretKey sk; | ||
| if (newKey) { | ||
| keyb[0]++; | ||
| sk = new SecretKeySpec(keyb, AES); | ||
| } else { | ||
| sk = key; | ||
| } | ||
| cipher.init(Cipher.ENCRYPT_MODE, sk, new GCMParameterSpec(128, iv)); | ||
| cipher.updateAAD(aad); | ||
| final var cipherText = cipher.doFinal(input); | ||
| cipher.init(Cipher.DECRYPT_MODE, sk, new GCMParameterSpec(128, iv)); | ||
| cipher.updateAAD(aad); | ||
| return cipher.doFinal(cipherText); | ||
| } | ||
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| private Cipher getAesGcmCipherFromAccp() { | ||
| try { | ||
| return Cipher.getInstance(AES_GCM, AmazonCorrettoCryptoProvider.INSTANCE); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
| } |
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