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Pim Otte 2017-02-23 16:48:10 +01:00 • committed by AsamK
parent 0744dcccf1
commit d91e20e1f8
14 changed files with 0 additions and 0 deletions
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31
src/main/java/org/asamk/signal/Hex.java
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@ -1,31 +0,0 @@
package org.asamk.signal;
public class Hex {
private final static char[] HEX_DIGITS = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
public static String toStringCondensed(byte[] bytes) {
StringBuffer buf = new StringBuffer();
for (int i = 0; i < bytes.length; i++) {
appendHexChar(buf, bytes[i]);
}
return buf.toString();
}
private static void appendHexChar(StringBuffer buf, int b) {
buf.append(HEX_DIGITS[(b >> 4) & 0xf]);
buf.append(HEX_DIGITS[b & 0xf]);
buf.append(" ");
}
public static byte[] toByteArray(String s) {
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i + 1), 16));
}
return data;
}
}