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Log the running time of ECDH shared secret derivation.

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akwizgran
2014-03-22 17:06:00 +00:00
parent c028728c19
commit 2f9ef8fcaf
1 changed files with 6 additions and 1 deletions
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7
briar-core/src/org/briarproject/crypto/CryptoComponentImpl.java
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@@ -234,9 +234,14 @@ class CryptoComponentImpl implements CryptoComponent {
throw new IllegalArgumentException(); throw new IllegalArgumentException();
ECPrivateKeyParameters ecPriv = ((Sec1PrivateKey) priv).getKey(); ECPrivateKeyParameters ecPriv = ((Sec1PrivateKey) priv).getKey();
ECPublicKeyParameters ecPub = ((Sec1PublicKey) pub).getKey(); ECPublicKeyParameters ecPub = ((Sec1PublicKey) pub).getKey();
long now = System.currentTimeMillis();
ECDHCBasicAgreement agreement = new ECDHCBasicAgreement(); ECDHCBasicAgreement agreement = new ECDHCBasicAgreement();
agreement.init(ecPriv); agreement.init(ecPriv);
return agreement.calculateAgreement(ecPub).toByteArray(); byte[] secret = agreement.calculateAgreement(ecPub).toByteArray();
long duration = System.currentTimeMillis() - now;
if(LOG.isLoggable(INFO))
LOG.info("Deriving shared secret took " + duration + " ms");
return secret;
} }
public byte[] deriveGroupSalt(byte[] secret) { public byte[] deriveGroupSalt(byte[] secret) {