public EncryptionKeys(
@Nullable byte[] adminKey, @Nullable byte[] memberKey, @Nullable byte[] guestKey) {
_adminKeyBytes = adminKey;
_memberKeyBytes = memberKey;
_guestKeyBytes = guestKey;
_adminKey = null;
_memberKey = null;
_guestKey = null;
if (_adminKeyBytes != null) {
_adminKey = BleUtils.bytesToHexString(_adminKeyBytes);
}
if (_memberKeyBytes != null) {
_memberKey = BleUtils.bytesToHexString(_memberKeyBytes);
}
if (_guestKeyBytes != null) {
_guestKey = BleUtils.bytesToHexString(_guestKeyBytes);
}
}
public EncryptionKeys(
@Nullable String adminKey, @Nullable String memberKey, @Nullable String guestKey) {
_adminKey = getKeyFromString(adminKey);
_memberKey = getKeyFromString(memberKey);
_guestKey = getKeyFromString(guestKey);
_adminKeyBytes = null;
_memberKeyBytes = null;
_guestKeyBytes = null;
try {
if (_adminKey != null) {
_adminKeyBytes = BleUtils.hexStringToBytes(_adminKey);
}
if (_memberKey != null) {
_memberKeyBytes = BleUtils.hexStringToBytes(_memberKey);
}
if (_guestKey != null) {
_guestKeyBytes = BleUtils.hexStringToBytes(_guestKey);
}
} catch (java.lang.NumberFormatException e) {
BleLog.getInstance().LOGe(TAG, "Invalid key format");
e.printStackTrace();
}
}
private String getKeyFromString(String key) {
if (key == null) {
return null;
}
String retKey = null;
if (key.length() == BleBaseEncryption.AES_BLOCK_SIZE * 2) {
retKey = key;
}
if (key.length() == BleBaseEncryption.AES_BLOCK_SIZE) {
byte[] keyBytes = key.getBytes(Charset.forName("UTF-8"));
retKey = BleUtils.bytesToHexString(keyBytes);
}
return retKey;
}