From 03247aedd61277c28ffea00a53a6d6772b4bc04d Mon Sep 17 00:00:00 2001
From: akwizgran <akwizgran@users.sourceforge.net>
Date: Wed, 14 Jan 2015 19:09:17 +0000
Subject: [PATCH] Log how long it takes to generate and verify signatures.
---
.../briarproject/crypto/SignatureImpl.java | 20 +++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/briar-core/src/org/briarproject/crypto/SignatureImpl.java b/briar-core/src/org/briarproject/crypto/SignatureImpl.java
index 0c2a02eb4a..78501b18b2 100644
--- a/briar-core/src/org/briarproject/crypto/SignatureImpl.java
+++ b/briar-core/src/org/briarproject/crypto/SignatureImpl.java
@@ -1,7 +1,10 @@
package org.briarproject.crypto;
+import static java.util.logging.Level.INFO;
+
import java.security.GeneralSecurityException;
import java.security.SecureRandom;
+import java.util.logging.Logger;
import org.briarproject.api.crypto.PrivateKey;
import org.briarproject.api.crypto.PublicKey;
@@ -18,6 +21,9 @@ import org.spongycastle.crypto.signers.HMacDSAKCalculator;
class SignatureImpl implements Signature {
+ private static final Logger LOG =
+ Logger.getLogger(SignatureImpl.class.getName());
+
private final SecureRandom secureRandom;
private final DSADigestSigner signer;
@@ -53,10 +59,20 @@ class SignatureImpl implements Signature {
}
public byte[] sign() {
- return signer.generateSignature();
+ long now = System.currentTimeMillis();
+ byte[] signature = signer.generateSignature();
+ long duration = System.currentTimeMillis() - now;
+ if(LOG.isLoggable(INFO))
+ LOG.info("Generating signature took " + duration + " ms");
+ return signature;
}
public boolean verify(byte[] signature) {
- return signer.verifySignature(signature);
+ long now = System.currentTimeMillis();
+ boolean valid = signer.verifySignature(signature);
+ long duration = System.currentTimeMillis() - now;
+ if(LOG.isLoggable(INFO))
+ LOG.info("Verifying signature took " + duration + " ms");
+ return valid;
}
}
--
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