message: Changing Java EAX implementation to be as constant time as can be hoped for Java
diff: @@ -121,7 +121,7 @@ public final class AesEaxJce implements Aead {
  }
  // Shifts the least significant block by 1 bit and reduces the msb modulo the polynomial.
  res[BLOCK_SIZE_IN_BYTES - 1] =
  - (byte) ((block[BLOCK_SIZE_IN_BYTES - 1] << 1) ^ ((block[0] & 0x80) == 0 ? 0 : 0x87));
  + (byte) ((block[BLOCK_SIZE_IN_BYTES - 1] << 1) ^ ((block[0] >> 7) & 0x87));
  return res;
  }
  