public boolean isValid()

in service/src/main/java/org/apache/fineract/cn/provisioner/config/CheckKeysValid.java [38:62]

• 21 lines of code
• 6 McCabe index (conditional complexity)

  public boolean isValid(final SystemProperties value, final ConstraintValidatorContext context) {
    if (value.getPrivateKey().getModulus() == null || value.getPrivateKey().getExponent() == null ||
        value.getPublicKey().getModulus() == null ||value.getPublicKey().getExponent() == null)
      return false;

    try {
      final KeyFactory keyFactory = KeyFactory.getInstance("RSA");
      final RSAPrivateKeySpec rsaPrivateKeySpec
          = new RSAPrivateKeySpec(value.getPrivateKey().getModulus(), value.getPrivateKey().getExponent());
      final PrivateKey privateKey = keyFactory.generatePrivate(rsaPrivateKeySpec);

      final RSAPublicKeySpec rsaPublicKeySpec
          = new RSAPublicKeySpec(value.getPublicKey().getModulus(), value.getPublicKey().getExponent());
      final PublicKey publicKey = keyFactory.generatePublic(rsaPublicKeySpec);

      final Signature signature = Signature.getInstance("NONEwithRSA");
      signature.initSign(privateKey);
      final byte[] signed = signature.sign();

      signature.initVerify(publicKey);
      return signature.verify(signed);
    } catch (final NoSuchAlgorithmException | InvalidKeySpecException | InvalidKeyException | SignatureException e) {
      return false;
    }
  }