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authorThomas Lenz <tlenz@iaik.tugraz.at>2016-02-17 07:00:09 +0100
committerThomas Lenz <tlenz@iaik.tugraz.at>2016-02-17 07:00:09 +0100
commit07c6114a266a67abd404bac8703c1a17e035d69d (patch)
tree893d8a4873566b2bf3d4dc8d35d02e636a9d38cd /DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java
parent274a85e53fa8c06a869f2bb3a7bd24300ee9b3fd (diff)
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remove STORK code --> MOA-ID >= 3.2 only supports eIDAS protocol
Diffstat (limited to 'DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java')
-rw-r--r--DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java182
1 files changed, 0 insertions, 182 deletions
diff --git a/DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java b/DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java
deleted file mode 100644
index 1c55e59e3..000000000
--- a/DocumentService/src/eu/stork/documentservice/utils/EncryptionHelper.java
+++ /dev/null
@@ -1,182 +0,0 @@
-package eu.stork.documentservice.utils;
-
-import java.io.ByteArrayInputStream;
-import java.io.InputStream;
-import java.security.AlgorithmParameters;
-import java.security.PublicKey;
-import java.security.cert.CertificateFactory;
-import java.security.cert.X509Certificate;
-
-import javax.crypto.*;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-import com.sun.org.apache.xml.internal.security.utils.Base64;
-
-import eu.stork.documentservice.exceptions.EncryptionException;
-
-public class EncryptionHelper {
-
- private static String key;
- private static String iv;
- private static Cipher cipher;
-
- public EncryptionHelper() throws EncryptionException
- {
- this.generateKeys();
- }
-
- public EncryptionHelper(String inKey, String inIv) throws EncryptionException
- {
- this.initKeys(inKey, inIv);
- }
-
- /**
- * Generate new symmetric keys
- * @throws EncryptionException
- */
- public void generateKeys() throws EncryptionException
- {
- try
- {
- KeyGenerator keyGen = KeyGenerator.getInstance("AES");
- keyGen.init(256);
- SecretKey secretKey = keyGen.generateKey();
- cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
- cipher.init(Cipher.ENCRYPT_MODE, secretKey);
- AlgorithmParameters params = cipher.getParameters();
- key = Base64.encode(secretKey.getEncoded());
- iv = Base64.encode(params.getParameterSpec(IvParameterSpec.class).getIV());
- }
- catch (Exception e)
- {
- e.printStackTrace();
- throw new EncryptionException("Unable to generate encryption key.", e);
- }
- }
-
- /**
- * Initialize keys with specified keys
- * @param inKey the key to use
- * @param inIv the IV to use
- * @throws EncryptionException the exception thrown
- */
- public void initKeys(String inKey, String inIv) throws EncryptionException
- {
- try
- {
- key = inKey;
- iv = inIv;
- SecretKeySpec skeySpec = new SecretKeySpec(Base64.decode(inKey), "AES");
- cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
- cipher.init(Cipher.DECRYPT_MODE, skeySpec, new IvParameterSpec(Base64.decode(inIv)));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- throw new EncryptionException("Unable to initialize encryption key.", e);
- }
- }
-
- /**
- * Encrypt data with key
- * @param clearData the clear data
- * @return the encrypted data
- * @throws EncryptionException the exception thrown
- */
- public byte[] encrypt(byte[] clearData) throws EncryptionException
- {
- if (clearData != null)
- {
- try
- {
- return cipher.doFinal(clearData);
- }
- catch (Exception ex)
- {
- throw new EncryptionException("Could not decrypt data.", ex);
- }
- }
- else
- throw new EncryptionException("Clear data is null.");
- }
-
- /**
- * Decrypt data with keys
- * @param encData the encrypted data
- * @return decrypted data
- * @throws EncryptionException the exception thrown
- */
- public byte[] decrypt(byte[] encData) throws EncryptionException
- {
- if (encData != null)
- {
- try
- {
- return cipher.doFinal(encData);
- }
- catch (Exception ex)
- {
- throw new EncryptionException("Could not encrypt data.", ex);
- }
- }
- else
- throw new EncryptionException("Encrypted data is null.");
- }
-
- /**
- * Get the key string
- * @return the key
- */
- public String getKey()
- {
- return key;
- }
-
- /**
- * Get the IV string
- * @return the iv
- */
- public String getIv()
- {
- return iv;
- }
-
- /**
- * Encrypt string with certificate
- * @param certString the PEM formated certificate
- * @param input the string to encrypt
- * @return encrypted string
- * @throws EncryptionException the exception thrown
- */
- public String encryptWithCert(String certString, String input) throws EncryptionException
- {
- if (certString != null && !certString.isEmpty())
- {
- if (input != null && !input.isEmpty())
- {
- try {
- certString = certString.replace("-----BEGIN CERTIFICATE-----", "");
- certString = certString.replace("-----END CERTIFICATE-----", "");
- InputStream inStream = new ByteArrayInputStream(Base64.decode(certString));
- CertificateFactory cf = CertificateFactory.getInstance("X.509");
- X509Certificate cert = (X509Certificate)cf.generateCertificate(inStream);
- PublicKey pk = cert.getPublicKey();
- Cipher rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
- rsaCipher.init(Cipher.ENCRYPT_MODE, pk);
- byte[] encrypted = rsaCipher.doFinal(input.getBytes("UTF-8"));
- return Base64.encode(encrypted);
- }
- catch (Exception e) {
- e.printStackTrace();
- throw new EncryptionException("Unabled to encrypt string.", e);
- }
- }
- else
- throw new EncryptionException("Input is null or empty.");
- }
- else
- throw new EncryptionException("Certificate is null or empty.");
- }
-
-}