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-rw-r--r--java/src/main/java/org/whispersystems/libaxolotl/ecc/Curve.java30
1 files changed, 12 insertions, 18 deletions
diff --git a/java/src/main/java/org/whispersystems/libaxolotl/ecc/Curve.java b/java/src/main/java/org/whispersystems/libaxolotl/ecc/Curve.java
index 5d47e3aa..9f2c202a 100644
--- a/java/src/main/java/org/whispersystems/libaxolotl/ecc/Curve.java
+++ b/java/src/main/java/org/whispersystems/libaxolotl/ecc/Curve.java
@@ -16,24 +16,23 @@
*/
package org.whispersystems.libaxolotl.ecc;
+import org.whispersystems.curve25519.Curve25519;
import org.whispersystems.curve25519.Curve25519KeyPair;
+import org.whispersystems.curve25519.NoSuchProviderException;
import org.whispersystems.libaxolotl.InvalidKeyException;
-import org.whispersystems.curve25519.Curve25519;
-import java.security.NoSuchAlgorithmException;
-import java.security.SecureRandom;
+import static org.whispersystems.curve25519.Curve25519.BEST;
public class Curve {
public static final int DJB_TYPE = 0x05;
public static boolean isNative() {
- return Curve25519.isNative();
+ return Curve25519.getInstance(BEST).isNative();
}
public static ECKeyPair generateKeyPair() {
- SecureRandom secureRandom = getSecureRandom();
- Curve25519KeyPair keyPair = Curve25519.generateKeyPair(secureRandom);
+ Curve25519KeyPair keyPair = Curve25519.getInstance(BEST).generateKeyPair();
return new ECKeyPair(new DjbECPublicKey(keyPair.getPublicKey()),
new DjbECPrivateKey(keyPair.getPrivateKey()));
@@ -66,8 +65,9 @@ public class Curve {
}
if (publicKey.getType() == DJB_TYPE) {
- return Curve25519.calculateAgreement(((DjbECPublicKey)publicKey).getPublicKey(),
- ((DjbECPrivateKey)privateKey).getPrivateKey());
+ return Curve25519.getInstance(BEST)
+ .calculateAgreement(((DjbECPublicKey) publicKey).getPublicKey(),
+ ((DjbECPrivateKey) privateKey).getPrivateKey());
} else {
throw new InvalidKeyException("Unknown type: " + publicKey.getType());
}
@@ -77,7 +77,8 @@ public class Curve {
throws InvalidKeyException
{
if (signingKey.getType() == DJB_TYPE) {
- return Curve25519.verifySignature(((DjbECPublicKey)signingKey).getPublicKey(), message, signature);
+ return Curve25519.getInstance(BEST)
+ .verifySignature(((DjbECPublicKey) signingKey).getPublicKey(), message, signature);
} else {
throw new InvalidKeyException("Unknown type: " + signingKey.getType());
}
@@ -87,17 +88,10 @@ public class Curve {
throws InvalidKeyException
{
if (signingKey.getType() == DJB_TYPE) {
- return Curve25519.calculateSignature(getSecureRandom(), ((DjbECPrivateKey)signingKey).getPrivateKey(), message);
+ return Curve25519.getInstance(BEST)
+ .calculateSignature(((DjbECPrivateKey) signingKey).getPrivateKey(), message);
} else {
throw new InvalidKeyException("Unknown type: " + signingKey.getType());
}
}
-
- private static SecureRandom getSecureRandom() {
- try {
- return SecureRandom.getInstance("SHA1PRNG");
- } catch (NoSuchAlgorithmException e) {
- throw new AssertionError(e);
- }
- }
}