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Diffstat (limited to 'pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JcePGPDataEncryptorBuilder.java')
-rw-r--r--pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JcePGPDataEncryptorBuilder.java175
1 files changed, 0 insertions, 175 deletions
diff --git a/pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JcePGPDataEncryptorBuilder.java b/pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JcePGPDataEncryptorBuilder.java
deleted file mode 100644
index f0c075ce..00000000
--- a/pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JcePGPDataEncryptorBuilder.java
+++ /dev/null
@@ -1,175 +0,0 @@
-package org.bouncycastle.openpgp.operator.jcajce;
-
-import java.io.OutputStream;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Provider;
-import java.security.SecureRandom;
-
-import javax.crypto.Cipher;
-import javax.crypto.CipherOutputStream;
-import javax.crypto.spec.IvParameterSpec;
-
-import org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags;
-import org.bouncycastle.jcajce.util.DefaultJcaJceHelper;
-import org.bouncycastle.jcajce.util.NamedJcaJceHelper;
-import org.bouncycastle.jcajce.util.ProviderJcaJceHelper;
-import org.bouncycastle.openpgp.PGPException;
-import org.bouncycastle.openpgp.operator.PGPDataEncryptor;
-import org.bouncycastle.openpgp.operator.PGPDataEncryptorBuilder;
-import org.bouncycastle.openpgp.operator.PGPDigestCalculator;
-
-/**
- * {@link PGPDataEncryptorBuilder} implementation that sources cryptographic primitives using the
- * JCE APIs.
- * <p/>
- * By default, cryptographic primitives will be loaded using the default JCE load order (i.e.
- * without specifying a provider). <br/>
- * A specific provider can be specified using one of the {@link #setProvider(String)} methods.
- */
-public class JcePGPDataEncryptorBuilder
- implements PGPDataEncryptorBuilder
-{
- private OperatorHelper helper = new OperatorHelper(new DefaultJcaJceHelper());
- private SecureRandom random;
- private boolean withIntegrityPacket;
- private int encAlgorithm;
-
- /**
- * Constructs a new data encryptor builder for a specified cipher type.
- *
- * @param encAlgorithm one of the {@link SymmetricKeyAlgorithmTags supported symmetric cipher
- * algorithms}. May not be {@link SymmetricKeyAlgorithmTags#NULL}.
- */
- public JcePGPDataEncryptorBuilder(int encAlgorithm)
- {
- this.encAlgorithm = encAlgorithm;
-
- if (encAlgorithm == 0)
- {
- throw new IllegalArgumentException("null cipher specified");
- }
- }
-
- /**
- * Sets whether or not the resulting encrypted data will be protected using an integrity packet.
- *
- * @param withIntegrityPacket true if an integrity packet is to be included, false otherwise.
- * @return the current builder.
- */
- public JcePGPDataEncryptorBuilder setWithIntegrityPacket(boolean withIntegrityPacket)
- {
- this.withIntegrityPacket = withIntegrityPacket;
-
- return this;
- }
-
- /**
- * Sets the JCE provider to source cryptographic primitives from.
- *
- * @param provider the JCE provider to use.
- * @return the current builder.
- */
- public JcePGPDataEncryptorBuilder setProvider(Provider provider)
- {
- this.helper = new OperatorHelper(new ProviderJcaJceHelper(provider));
-
- return this;
- }
-
- /**
- * Sets the JCE provider to source cryptographic primitives from.
- *
- * @param providerName the name of the JCE provider to use.
- * @return the current builder.
- */
- public JcePGPDataEncryptorBuilder setProvider(String providerName)
- {
- this.helper = new OperatorHelper(new NamedJcaJceHelper(providerName));
-
- return this;
- }
-
- /**
- * Provide a user defined source of randomness.
- * <p/>
- * If no SecureRandom is configured, a default SecureRandom will be used.
- *
- * @param random the secure random to be used.
- * @return the current builder.
- */
- public JcePGPDataEncryptorBuilder setSecureRandom(SecureRandom random)
- {
- this.random = random;
-
- return this;
- }
-
- public int getAlgorithm()
- {
- return encAlgorithm;
- }
-
- public SecureRandom getSecureRandom()
- {
- if (random == null)
- {
- random = new SecureRandom();
- }
-
- return random;
- }
-
- public PGPDataEncryptor build(byte[] keyBytes)
- throws PGPException
- {
- return new MyPGPDataEncryptor(keyBytes);
- }
-
- private class MyPGPDataEncryptor
- implements PGPDataEncryptor
- {
- private final Cipher c;
-
- MyPGPDataEncryptor(byte[] keyBytes)
- throws PGPException
- {
- c = helper.createStreamCipher(encAlgorithm, withIntegrityPacket);
-
- byte[] iv = new byte[c.getBlockSize()];
-
- try
- {
- c.init(Cipher.ENCRYPT_MODE, PGPUtil.makeSymmetricKey(encAlgorithm, keyBytes), new IvParameterSpec(iv));
- }
- catch (InvalidKeyException e)
- {
- throw new PGPException("invalid key: " + e.getMessage(), e);
- }
- catch (InvalidAlgorithmParameterException e)
- {
- throw new PGPException("imvalid algorithm parameter: " + e.getMessage(), e);
- }
- }
-
- public OutputStream getOutputStream(OutputStream out)
- {
- return new CipherOutputStream(out, c);
- }
-
- public PGPDigestCalculator getIntegrityCalculator()
- {
- if (withIntegrityPacket)
- {
- return new SHA1PGPDigestCalculator();
- }
-
- return null;
- }
-
- public int getBlockSize()
- {
- return c.getBlockSize();
- }
- }
-}