private void testEC5Params(ECPrivateKey sKey, ECPublicKey vKey) {
java.security.interfaces.ECKey k = (java.security.interfaces.ECKey) sKey;
if (k.getParams() != null) {
fail("parameters exposed in private key");
}
k = (ECKey) vKey;
if (k.getParams() != null) {
fail("parameters exposed in public key");
}
}
/**
* Returns the key size of the given key object in bits.
*
* @param key the key object, cannot be null
* @return the key size of the given key object in bits, or -1 if the key size is not accessible
*/
public static final int getKeySize(Key key) {
int size = -1;
if (key instanceof Length) {
try {
Length ruler = (Length) key;
size = ruler.length();
} catch (UnsupportedOperationException usoe) {
// ignore the exception
}
if (size >= 0) {
return size;
}
}
// try to parse the length from key specification
if (key instanceof SecretKey) {
SecretKey sk = (SecretKey) key;
String format = sk.getFormat();
if ("RAW".equals(format) && sk.getEncoded() != null) {
size = (sk.getEncoded().length * 8);
} // Otherwise, it may be a unextractable key of PKCS#11, or
// a key we are not able to handle.
} else if (key instanceof RSAKey) {
RSAKey pubk = (RSAKey) key;
size = pubk.getModulus().bitLength();
} else if (key instanceof ECKey) {
ECKey pubk = (ECKey) key;
size = pubk.getParams().getOrder().bitLength();
} else if (key instanceof DSAKey) {
DSAKey pubk = (DSAKey) key;
size = pubk.getParams().getP().bitLength();
} else if (key instanceof DHKey) {
DHKey pubk = (DHKey) key;
size = pubk.getParams().getP().bitLength();
} // Otherwise, it may be a unextractable key of PKCS#11, or
// a key we are not able to handle.
return size;
}