aboutsummaryrefslogtreecommitdiffstats
path: root/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java
diff options
context:
space:
mode:
Diffstat (limited to 'libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java')
-rw-r--r--libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java75
1 files changed, 0 insertions, 75 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java
deleted file mode 100644
index c3be8c832..000000000
--- a/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/bc/BcUtil.java
+++ /dev/null
@@ -1,75 +0,0 @@
-package org.spongycastle.openpgp.operator.bc;
-
-import java.io.InputStream;
-
-import org.spongycastle.crypto.BlockCipher;
-import org.spongycastle.crypto.BufferedBlockCipher;
-import org.spongycastle.crypto.io.CipherInputStream;
-import org.spongycastle.crypto.modes.CFBBlockCipher;
-import org.spongycastle.crypto.modes.OpenPGPCFBBlockCipher;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
-import org.spongycastle.openpgp.operator.PGPDataDecryptor;
-import org.spongycastle.openpgp.operator.PGPDigestCalculator;
-
-class BcUtil
-{
- static BufferedBlockCipher createStreamCipher(boolean forEncryption, BlockCipher engine, boolean withIntegrityPacket, byte[] key)
- {
- BufferedBlockCipher c;
-
- if (withIntegrityPacket)
- {
- c = new BufferedBlockCipher(new CFBBlockCipher(engine, engine.getBlockSize() * 8));
- }
- else
- {
- c = new BufferedBlockCipher(new OpenPGPCFBBlockCipher(engine));
- }
-
- KeyParameter keyParameter = new KeyParameter(key);
-
- if (withIntegrityPacket)
- {
- c.init(forEncryption, new ParametersWithIV(keyParameter, new byte[engine.getBlockSize()]));
- }
- else
- {
- c.init(forEncryption, keyParameter);
- }
-
- return c;
- }
-
- public static PGPDataDecryptor createDataDecryptor(boolean withIntegrityPacket, BlockCipher engine, byte[] key)
- {
- final BufferedBlockCipher c = createStreamCipher(false, engine, withIntegrityPacket, key);
-
- return new PGPDataDecryptor()
- {
- public InputStream getInputStream(InputStream in)
- {
- return new CipherInputStream(in, c);
- }
-
- public int getBlockSize()
- {
- return c.getBlockSize();
- }
-
- public PGPDigestCalculator getIntegrityCalculator()
- {
- return new SHA1PGPDigestCalculator();
- }
- };
- }
-
- public static BufferedBlockCipher createSymmetricKeyWrapper(boolean forEncryption, BlockCipher engine, byte[] key, byte[] iv)
- {
- BufferedBlockCipher c = new BufferedBlockCipher(new CFBBlockCipher(engine, engine.getBlockSize() * 8));
-
- c.init(forEncryption, new ParametersWithIV(new KeyParameter(key), iv));
-
- return c;
- }
-}