public static byte[] calculateSignature(ECPrivateKey signingKey, byte[] message)
{
if (signingKey.getType() == DJB_TYPE)
{
return(Curve25519.getInstance(Curve25519ProviderType.BEST)
.calculateSignature(((DjbECPrivateKey)signingKey).getPrivateKey(), message));
}
else
{
throw new InvalidKeyException("Unknown type: " + signingKey.getType());
}
}
public static byte[] calculateSignature(ECPrivateKey signingKey, byte[] message)
{
if (signingKey.getType() == DJB_TYPE)
{
return Curve25519.getInstance(BEST)
.calculateSignature(((DjbECPrivateKey)signingKey).getPrivateKey(), message);
}
else
{
throw new InvalidKeyException("Unknown type: " + signingKey.getType());
}
}
public static byte[] calculateAgreement(ECPublicKey publicKey, ECPrivateKey privateKey)
{
if (publicKey == null)
{
throw new InvalidKeyException("public value is null");
}
if (privateKey == null)
{
throw new InvalidKeyException("private value is null");
}
if (publicKey.getType() != privateKey.getType())
{
throw new InvalidKeyException("Public and private keys must be of the same type!");
}
if (publicKey.getType() == DJB_TYPE)
{
return(Curve25519.getInstance(Curve25519ProviderType.BEST)
.calculateAgreement(((DjbECPublicKey)publicKey).getPublicKey(),
((DjbECPrivateKey)privateKey).getPrivateKey()));
}
else
{
throw new InvalidKeyException("Unknown type: " + publicKey.getType());
}
}
public static byte[] calculateAgreement(ECPublicKey publicKey, ECPrivateKey privateKey)
{
if (publicKey.getType() != privateKey.getType())
{
throw new InvalidKeyException("Public and private keys must be of the same type!");
}
if (publicKey.getType() == DJB_TYPE)
{
return Curve25519.getInstance(Curve25519ProviderType.BEST)
.calculateAgreement(((DjbECPublicKey)publicKey).getPublicKey(),
((DjbECPrivateKey)privateKey).getPrivateKey());
}
else
{
throw new InvalidKeyException("Unknown type: " + publicKey.getType());
}
}