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fixed BigInteger sign

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This commit is contained in:
Harald Hoyer 2014-07-31 15:54:45 +02:00
parent 031b7ebb0a
commit 5f8c4987aa
1 changed files with 5 additions and 3 deletions
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8
app/src/main/java/org/surfsite/android/secretshare/Renderer.java
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@ -31,6 +31,8 @@ import java.util.Hashtable;
public class Renderer { public class Renderer {
// private final static AztecWriter sCodeWriter = new AztecWriter(); // private final static AztecWriter sCodeWriter = new AztecWriter();
private final static QRCodeWriter sCodeWriter = new QRCodeWriter(); private final static QRCodeWriter sCodeWriter = new QRCodeWriter();
private final static byte BYTE_IS_UTF8 = 2;
private final static byte BYTE_NOT_UTF8 = 4;
public static Bitmap createBitmap(String data) { public static Bitmap createBitmap(String data) {
final Hashtable<EncodeHintType, Object> hints = final Hashtable<EncodeHintType, Object> hints =
@ -204,14 +206,14 @@ public class Renderer {
byte[] encBytes = new byte[bytes.length + 1]; byte[] encBytes = new byte[bytes.length + 1];
System.arraycopy(bytes, 0, encBytes, 0, bytes.length); System.arraycopy(bytes, 0, encBytes, 0, bytes.length);
encBytes[bytes.length] = (byte) (isUTF8 ? 0 : 1); encBytes[bytes.length] = (byte) (isUTF8 ? BYTE_IS_UTF8 : BYTE_NOT_UTF8);
return encBytes; return encBytes;
} }
static String tryUnicodeExpand(byte[] in) { static String tryUnicodeExpand(byte[] in) {
byte[] exBytes = new byte[in.length - 1]; byte[] exBytes = new byte[in.length - 1];
System.arraycopy(in, 0, exBytes, 0, in.length - 1); System.arraycopy(in, 0, exBytes, 0, in.length - 1);
if (in[in.length - 1] == 1) if (in[in.length - 1] != BYTE_IS_UTF8)
return new String(exBytes); return new String(exBytes);
final Expand unicodeExpand = new Expand(); final Expand unicodeExpand = new Expand();
try { try {
@ -225,7 +227,7 @@ public class Renderer {
} }
static BigInteger stringToSecret(String in) { static BigInteger stringToSecret(String in) {
return new BigInteger(tryUnicodeCompress(in)); return new BigInteger(1, tryUnicodeCompress(in));
} }
static String secretToString(BigInteger in) { static String secretToString(BigInteger in) {