35 lines
1.1 KiB
Java
35 lines
1.1 KiB
Java
package eu.siacs.conversations.utils;
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import android.util.Base64;
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public class CryptoHelper {
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final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();
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public static String bytesToHex(byte[] bytes) {
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char[] hexChars = new char[bytes.length * 2];
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for ( int j = 0; j < bytes.length; j++ ) {
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int v = bytes[j] & 0xFF;
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hexChars[j * 2] = hexArray[v >>> 4];
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hexChars[j * 2 + 1] = hexArray[v & 0x0F];
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}
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return new String(hexChars);
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}
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public static String saslPlain(String username, String password) {
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byte[] userBytes = username.getBytes();
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int userLenght = userBytes.length;
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byte[] passwordBytes = password.getBytes();
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byte[] saslBytes = new byte[userBytes.length+passwordBytes.length+2];
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saslBytes[0] = 0x0;
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for(int i = 1; i < saslBytes.length; ++i) {
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if (i<=userLenght) {
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saslBytes[i] = userBytes[i-1];
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} else if (i==userLenght+1) {
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saslBytes[i] = 0x0;
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} else {
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saslBytes[i] = passwordBytes[i-(userLenght+2)];
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}
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}
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return Base64.encodeToString(saslBytes, Base64.DEFAULT);
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}
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}
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