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Diffstat (limited to 'core/src/main/java/org/bouncycastle/crypto/modes/gcm/Tables64kGCMMultiplier.java')
-rw-r--r--core/src/main/java/org/bouncycastle/crypto/modes/gcm/Tables64kGCMMultiplier.java73
1 files changed, 0 insertions, 73 deletions
diff --git a/core/src/main/java/org/bouncycastle/crypto/modes/gcm/Tables64kGCMMultiplier.java b/core/src/main/java/org/bouncycastle/crypto/modes/gcm/Tables64kGCMMultiplier.java
deleted file mode 100644
index 4f32a0d9..00000000
--- a/core/src/main/java/org/bouncycastle/crypto/modes/gcm/Tables64kGCMMultiplier.java
+++ /dev/null
@@ -1,73 +0,0 @@
-package org.bouncycastle.crypto.modes.gcm;
-
-import org.bouncycastle.util.Arrays;
-import org.bouncycastle.util.Pack;
-
-public class Tables64kGCMMultiplier implements GCMMultiplier
-{
- private byte[] H;
- private int[][][] M;
-
- public void init(byte[] H)
- {
- if (M == null)
- {
- M = new int[16][256][4];
- }
- else if (Arrays.areEqual(this.H, H))
- {
- return;
- }
-
- this.H = Arrays.clone(H);
-
- // M[0][0] is ZEROES;
- GCMUtil.asInts(H, M[0][128]);
-
- for (int j = 64; j >= 1; j >>= 1)
- {
- GCMUtil.multiplyP(M[0][j + j], M[0][j]);
- }
-
- int i = 0;
- for (;;)
- {
- for (int j = 2; j < 256; j += j)
- {
- for (int k = 1; k < j; ++k)
- {
- GCMUtil.xor(M[i][j], M[i][k], M[i][j + k]);
- }
- }
-
- if (++i == 16)
- {
- return;
- }
-
- // M[i][0] is ZEROES;
- for (int j = 128; j > 0; j >>= 1)
- {
- GCMUtil.multiplyP8(M[i - 1][j], M[i][j]);
- }
- }
- }
-
- public void multiplyH(byte[] x)
- {
-// assert x.Length == 16;
-
- int[] z = new int[4];
- for (int i = 15; i >= 0; --i)
- {
-// GCMUtil.xor(z, M[i][x[i] & 0xff]);
- int[] m = M[i][x[i] & 0xff];
- z[0] ^= m[0];
- z[1] ^= m[1];
- z[2] ^= m[2];
- z[3] ^= m[3];
- }
-
- Pack.intToBigEndian(z, x, 0);
- }
-}