How to use

base64Decode

method

in

com.kloudtek.util.StringUtils

/**
 * Constructor
 *
 * @param keyId     Key id
 * @param base64Key A {@link SignAndVerifyKey} key
 * @throws InvalidKeyException if the key was invalid
 */
public IDVKeyAPIClient(String keyId, KeyType keyType, String base64Key) throws InvalidKeyException {
  this(keyId, keyType, base64Decode(base64Key));
}

public DHParameters(String base64Encoded) {
  this(StringUtils.base64Decode(base64Encoded));
}

/**
 * Compare a salted digest to some data.
 *
 * @param b64Digest Base 64 encoded Salted digest
 * @param data      Data to validate digest again
 * @param alg       Algorithm to use for digest
 * @return True if the data matches the digest
 */
public static boolean compareSaltedDigest(String b64Digest, String data, DigestAlgorithm alg) {
  return compareSaltedDigest(StringUtils.base64Decode(b64Digest), data.getBytes(), alg);
}

@JsonIgnore
public HMACKey getHMACKey() throws InvalidKeyException {
  if (type != KeyType.HMAC_SHA256) {
    throw new IllegalArgumentException("Key is not an HMAC_SHA256 Key: " + type.name());
  }
  return CryptoUtils.readHMACKey(DigestAlgorithm.SHA256, StringUtils.base64Decode(value));
}

private void verifySignature(String signature, byte[] signedData, SignatureVerificationKey serverKey, DigestAlgorithm digestAlgorithm) throws InvalidKeyException, SignatureException {
  final byte[] signatureData = StringUtils.base64Decode(signature);
  if (logger.isLoggable(FINE)) {
    logger.fine("Verifying REST response - key: " + CryptoUtils.fingerprint(serverKey.getEncoded().getEncodedKey())
        + " alg: " + digestAlgorithm + " data: " + CryptoUtils.fingerprint(signedData) + " signature: " + CryptoUtils.fingerprint(signatureData));
  }
  cryptoEngine.verifySignature(serverKey, digestAlgorithm, signedData, signatureData);
}

  return base64Encode(utf8(resolveVarSub(functionParams,provisioningParams, neverFail)));
} else if (functionName.equals("db64")) {
  return utf8(base64Decode(resolveVarSub(functionParams,provisioningParams, neverFail)));
} else if (functionName.equals("t")) {
  return functionParams;