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-rw-r--r--mobile/android/services/src/main/java/org/mozilla/gecko/browserid/ASNUtils.java82
1 files changed, 0 insertions, 82 deletions
diff --git a/mobile/android/services/src/main/java/org/mozilla/gecko/browserid/ASNUtils.java b/mobile/android/services/src/main/java/org/mozilla/gecko/browserid/ASNUtils.java
deleted file mode 100644
index b032067c5..000000000
--- a/mobile/android/services/src/main/java/org/mozilla/gecko/browserid/ASNUtils.java
+++ /dev/null
@@ -1,82 +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.browserid;
-
-
-/**
- * Java produces signature in ASN.1 format. Here's some hard-coded encoding and decoding
- * code, courtesy of a comment in
- * <a href="http://stackoverflow.com/questions/10921733/how-sign-method-of-the-digital-signature-combines-the-r-s-values-in-to-array">http://stackoverflow.com/questions/10921733/how-sign-method-of-the-digital-signature-combines-the-r-s-values-in-to-array</a>.
- */
-public class ASNUtils {
- /**
- * Decode two short arrays from ASN.1 bytes.
- * @param input to extract.
- * @return length 2 array of byte arrays.
- */
- public static byte[][] decodeTwoArraysFromASN1(byte[] input) throws IllegalArgumentException {
- if (input == null) {
- throw new IllegalArgumentException("input must not be null");
- }
- if (input.length <= 3)
- throw new IllegalArgumentException("bad length");
- if (input[0] != 0x30)
- throw new IllegalArgumentException("bad encoding");
- if ((input[1] & ((byte) 0x80)) != 0)
- throw new IllegalArgumentException("bad length encoding");
- if (input[2] != 0x02)
- throw new IllegalArgumentException("bad encoding");
- if ((input[3] & ((byte) 0x80)) != 0)
- throw new IllegalArgumentException("bad length encoding");
- byte rLength = input[3];
- if (input.length <= 5 + rLength)
- throw new IllegalArgumentException("bad length");
- if (input[4 + rLength] != 0x02)
- throw new IllegalArgumentException("bad encoding");
- if ((input[5 + rLength] & (byte) 0x80) !=0)
- throw new IllegalArgumentException("bad length encoding");
- byte sLength = input[5 + rLength];
- if (input.length != 6 + sLength + rLength)
- throw new IllegalArgumentException("bad length");
- byte[] rArr = new byte[rLength];
- byte[] sArr = new byte[sLength];
- System.arraycopy(input, 4, rArr, 0, rLength);
- System.arraycopy(input, 6 + rLength, sArr, 0, sLength);
- return new byte[][] { rArr, sArr };
- }
-
- /**
- * Encode two short arrays into ASN.1 bytes.
- * @param first array to encode.
- * @param second array to encode.
- * @return array.
- */
- public static byte[] encodeTwoArraysToASN1(byte[] first, byte[] second) throws IllegalArgumentException {
- if (first == null) {
- throw new IllegalArgumentException("first must not be null");
- }
- if (second == null) {
- throw new IllegalArgumentException("second must not be null");
- }
- byte[] output = new byte[6 + first.length + second.length];
- output[0] = 0x30;
- if (4 + first.length + second.length > 255)
- throw new IllegalArgumentException("bad length");
- output[1] = (byte) (4 + first.length + second.length);
- if ((output[1] & ((byte) 0x80)) != 0)
- throw new IllegalArgumentException("bad length encoding");
- output[2] = 0x02;
- output[3] = (byte) first.length;
- if ((output[3] & ((byte) 0x80)) != 0)
- throw new IllegalArgumentException("bad length encoding");
- System.arraycopy(first, 0, output, 4, first.length);
- output[4 + first.length] = 0x02;
- output[5 + first.length] = (byte) second.length;
- if ((output[5 + first.length] & ((byte) 0x80)) != 0)
- throw new IllegalArgumentException("bad length encoding");
- System.arraycopy(second, 0, output, 6 + first.length, second.length);
- return output;
- }
-}