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Deterministic signatures (RFC 6979).

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This commit is contained in:
akwizgran
2014-01-16 18:52:59 +00:00
parent f97039318a
commit 4ac85e955f
1 changed files with 6 additions and 2 deletions
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8
briar-core/src/org/briarproject/crypto/SignatureImpl.java
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@@ -6,13 +6,15 @@ import java.security.SecureRandom;
import org.briarproject.api.crypto.PrivateKey;
import org.briarproject.api.crypto.PublicKey;
import org.briarproject.api.crypto.Signature;
import org.spongycastle.crypto.Digest;
import org.spongycastle.crypto.digests.SHA384Digest;
import org.spongycastle.crypto.params.ECPrivateKeyParameters;
import org.spongycastle.crypto.params.ECPublicKeyParameters;
import org.spongycastle.crypto.params.ParametersWithRandom;
import org.spongycastle.crypto.signers.DSADigestSigner;
import org.spongycastle.crypto.signers.DSAKCalculator;
import org.spongycastle.crypto.signers.ECDSASigner;
import org.spongycastle.crypto.signers.HMacDSAKCalculator;
class SignatureImpl implements Signature {
@@ -21,7 +23,9 @@ class SignatureImpl implements Signature {
SignatureImpl(SecureRandom secureRandom) {
this.secureRandom = secureRandom;
signer = new DSADigestSigner(new ECDSASigner(), new SHA384Digest());
Digest digest = new SHA384Digest();
DSAKCalculator calculator = new HMacDSAKCalculator(digest);
signer = new DSADigestSigner(new ECDSASigner(calculator), digest);
}
public void initSign(PrivateKey k) throws GeneralSecurityException {