/**
* Gets a boolean array representing bits of the KeyUsage extension.
*
* @throws IOException if failed to extract the KeyUsage extension value.
* @see java.security.cert.X509Certificate#getKeyUsage
*/
public static boolean[] getKeyUsage(X509Extension ext) throws IOException {
DERBitString bits = (DERBitString) getExtensionObject(ext);
// copied from X509CertificateObject
byte[] bytes = bits.getBytes();
int length = (bytes.length * 8) - bits.getPadBits();
boolean[] keyUsage =
new boolean[(length < DEFAULT_USAGE_LENGTH) ? DEFAULT_USAGE_LENGTH : length];
for (int i = 0; i != length; i++) {
keyUsage[i] = (bytes[i / 8] & (0x80 >>> (i % 8))) != 0;
}
return keyUsage;
}
public boolean[] getIssuerUniqueID() {
DERBitString id = cert.getAcinfo().getIssuerUniqueID();
if (id != null) {
byte[] bytes = id.getBytes();
boolean[] boolId = new boolean[bytes.length * 8 - id.getPadBits()];
for (int i = 0; i != boolId.length; i++) {
boolId[i] = (bytes[i / 8] & (0x80 >>> (i % 8))) != 0;
}
return boolId;
}
return null;
}
public ReasonFlags(DERBitString reasons) {
super(reasons.getBytes(), reasons.getPadBits());
}
public boolean isSet(DERBitString bits) {
byte[] bytes = bits.getBytes();
int length = (bytes.length * 8) - bits.getPadBits();
return (bit < length && ((bytes[bit / 8] & (0x80 >>> (bit % 8))) != 0));
}
