1 files changed, 0 insertions, 78 deletions
diff --git a/mobile/android/services/src/main/java/org/mozilla/gecko/sync/crypto/PBKDF2.java b/mobile/android/services/src/main/java/org/mozilla/gecko/sync/crypto/PBKDF2.java
deleted file mode 100644
index 636b2105c..000000000
--- a/mobile/android/services/src/main/java/org/mozilla/gecko/sync/crypto/PBKDF2.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.gecko.sync.crypto;
-
-import java.security.GeneralSecurityException;
-import java.util.Arrays;
-
-import javax.crypto.Mac;
-import javax.crypto.ShortBufferException;
-import javax.crypto.spec.SecretKeySpec;
-
-public class PBKDF2 {
-  public static byte[] pbkdf2SHA256(byte[] password, byte[] salt, int c, int dkLen)
-      throws GeneralSecurityException {
-    final String algorithm = "HmacSHA256";
-    SecretKeySpec keyspec = new SecretKeySpec(password, algorithm);
-    Mac prf = Mac.getInstance(algorithm);
-    prf.init(keyspec);
-
-    int hLen = prf.getMacLength();
-
-    byte U_r[] = new byte[hLen];
-    byte U_i[] = new byte[salt.length + 4];
-    byte scratch[] = new byte[hLen];
-
-    int l = Math.max(dkLen, hLen);
-    int r = dkLen - (l - 1) * hLen;
-    byte T[] = new byte[l * hLen];
-    int ti_offset = 0;
-    for (int i = 1; i <= l; i++) {
-      Arrays.fill(U_r, (byte) 0);
-      F(T, ti_offset, prf, salt, c, i, U_r, U_i, scratch);
-      ti_offset += hLen;
-    }
-
-    if (r < hLen) {
-      // Incomplete last block.
-      byte DK[] = new byte[dkLen];
-      System.arraycopy(T, 0, DK, 0, dkLen);
-      return DK;
-    }
-
-    return T;
-  }
-
-  private static void F(byte[] dest, int offset, Mac prf, byte[] S, int c, int blockIndex, byte U_r[], byte U_i[], byte[] scratch)
-      throws ShortBufferException, IllegalStateException {
-    final int hLen = prf.getMacLength();
-
-    // U0 = S || INT (i);
-    System.arraycopy(S, 0, U_i, 0, S.length);
-    INT(U_i, S.length, blockIndex);
-
-    for (int i = 0; i < c; i++) {
-      prf.update(U_i);
-      prf.doFinal(scratch, 0);
-      U_i = scratch;
-      xor(U_r, U_i);
-    }
-
-    System.arraycopy(U_r, 0, dest, offset, hLen);
-  }
-
-  private static void xor(byte[] dest, byte[] src) {
-    for (int i = 0; i < dest.length; i++) {
-      dest[i] ^= src[i];
-    }
-  }
-
-  private static void INT(byte[] dest, int offset, int i) {
-    dest[offset + 0] = (byte) (i / (256 * 256 * 256));
-    dest[offset + 1] = (byte) (i / (256 * 256));
-    dest[offset + 2] = (byte) (i / (256));
-    dest[offset + 3] = (byte) (i);
-  }
-}