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Downgrade to 256-bit curve for performance.

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Also reduced hash function to 256 bits because our target security level
is now 128 bits.
This commit is contained in:
akwizgran
2015-01-09 13:23:18 +00:00
parent 5d46d3a4b4
commit 112d80420c
10 changed files with 53 additions and 99 deletions
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6
briar-tests/src/org/briarproject/crypto/EllipticCurvePerformanceTest.java
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@@ -13,7 +13,7 @@ import org.spongycastle.asn1.x9.X9ECParameters;
import org.spongycastle.crypto.AsymmetricCipherKeyPair;
import org.spongycastle.crypto.Digest;
import org.spongycastle.crypto.agreement.ECDHCBasicAgreement;
import org.spongycastle.crypto.digests.SHA384Digest;
import org.spongycastle.crypto.digests.SHA256Digest;
import org.spongycastle.crypto.generators.ECKeyPairGenerator;
import org.spongycastle.crypto.params.ECDomainParameters;
import org.spongycastle.crypto.params.ECKeyGenerationParameters;
@@ -83,7 +83,7 @@ public class EllipticCurvePerformanceTest {
List<byte[]> signatures = new ArrayList<byte[]>();
samples.clear();
for(int i = 0; i < SAMPLES; i++) {
Digest digest = new SHA384Digest();
Digest digest = new SHA256Digest();
DSAKCalculator calculator = new HMacDSAKCalculator(digest);
DSADigestSigner signer = new DSADigestSigner(new ECDSASigner(
calculator), digest);
@@ -97,7 +97,7 @@ public class EllipticCurvePerformanceTest {
// Time some signature verifications
samples.clear();
for(int i = 0; i < SAMPLES; i++) {
Digest digest = new SHA384Digest();
Digest digest = new SHA256Digest();
DSAKCalculator calculator = new HMacDSAKCalculator(digest);
DSADigestSigner signer = new DSADigestSigner(new ECDSASigner(
calculator), digest);