mirror of https://github.com/beemdevelopment/Aegis
Match slot ID's to keystore aliases
Alexander Bakker
7 years ago
parent
c24b691a26
commit
576f908e01
@ -0,0 +1,46 @@
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package me.impy.aegis.util;
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// The hexadecimal utility functions in this file were taken and modified from: http://www.docjar.com/html/api/com/sun/xml/internal/bind/DatatypeConverterImpl.java.html
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// It is licensed under GPLv2 with a classpath exception.
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public class Hex {
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private Hex() {
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}
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private static int hexToBin(char ch) {
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if ('0' <= ch && ch <= '9') return ch - '0';
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if ('A' <= ch && ch <= 'F') return ch - 'A' + 10;
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if ('a' <= ch && ch <= 'f') return ch - 'a' + 10;
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return -1;
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}
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private static final char[] hexCode = "0123456789abcdef".toCharArray();
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public static byte[] toBytes(String s) {
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final int len = s.length();
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if (len % 2 != 0)
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throw new IllegalArgumentException("hexBinary needs to be even-length: " + s);
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byte[] out = new byte[len / 2];
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for (int i = 0; i < len; i += 2) {
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int h = hexToBin(s.charAt(i));
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int l = hexToBin(s.charAt(i + 1));
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if (h == -1 || l == -1)
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throw new IllegalArgumentException("contains illegal character for hexBinary: " + s);
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out[i / 2] = (byte) (h * 16 + l);
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}
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return out;
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}
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public static String toString(byte[] data) {
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StringBuilder r = new StringBuilder(data.length * 2);
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for (byte b : data) {
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r.append(hexCode[(b >> 4) & 0xF]);
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r.append(hexCode[(b & 0xF)]);
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}
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return r.toString();
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}
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}
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