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-rw-r--r--libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/paddings/X923Padding.java80
1 files changed, 0 insertions, 80 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/paddings/X923Padding.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/paddings/X923Padding.java
deleted file mode 100644
index e5b8992f1..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/paddings/X923Padding.java
+++ /dev/null
@@ -1,80 +0,0 @@
-package org.spongycastle.crypto.paddings;
-
-import java.security.SecureRandom;
-
-import org.spongycastle.crypto.InvalidCipherTextException;
-
-/**
- * A padder that adds X9.23 padding to a block - if a SecureRandom is
- * passed in random padding is assumed, otherwise padding with zeros is used.
- */
-public class X923Padding
- implements BlockCipherPadding
-{
- SecureRandom random = null;
-
- /**
- * Initialise the padder.
- *
- * @param random a SecureRandom if one is available.
- */
- public void init(SecureRandom random)
- throws IllegalArgumentException
- {
- this.random = random;
- }
-
- /**
- * Return the name of the algorithm the padder implements.
- *
- * @return the name of the algorithm the padder implements.
- */
- public String getPaddingName()
- {
- return "X9.23";
- }
-
- /**
- * add the pad bytes to the passed in block, returning the
- * number of bytes added.
- */
- public int addPadding(
- byte[] in,
- int inOff)
- {
- byte code = (byte)(in.length - inOff);
-
- while (inOff < in.length - 1)
- {
- if (random == null)
- {
- in[inOff] = 0;
- }
- else
- {
- in[inOff] = (byte)random.nextInt();
- }
- inOff++;
- }
-
- in[inOff] = code;
-
- return code;
- }
-
- /**
- * return the number of pad bytes present in the block.
- */
- public int padCount(byte[] in)
- throws InvalidCipherTextException
- {
- int count = in[in.length - 1] & 0xff;
-
- if (count > in.length)
- {
- throw new InvalidCipherTextException("pad block corrupted");
- }
-
- return count;
- }
-}