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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8 with debug enabled.
package org.bouncycastle.asn1.test;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERUTF8String;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Strings;
import org.bouncycastle.util.test.SimpleTestResult;
import org.bouncycastle.util.test.Test;
import org.bouncycastle.util.test.TestResult;
public class DERUTF8StringTest
implements Test
{
/**
* Unicode code point U+10400 coded as surrogate in two native Java UTF-16
* code units
*/
private final static char[] glyph1_utf16 = { 0xd801, 0xdc00 };
/**
* U+10400 coded in UTF-8
*/
private final static byte[] glyph1_utf8 = { (byte)0xF0, (byte)0x90, (byte)0x90, (byte)0x80 };
/**
* Unicode code point U+6771 in native Java UTF-16
*/
private final static char[] glyph2_utf16 = { 0x6771 };
/**
* U+6771 coded in UTF-8
*/
private final static byte[] glyph2_utf8 = { (byte)0xE6, (byte)0x9D, (byte)0xB1 };
/**
* Unicode code point U+00DF in native Java UTF-16
*/
private final static char[] glyph3_utf16 = { 0x00DF };
/**
* U+00DF coded in UTF-8
*/
private final static byte[] glyph3_utf8 = { (byte)0xC3, (byte)0x9f };
/**
* Unicode code point U+0041 in native Java UTF-16
*/
private final static char[] glyph4_utf16 = { 0x0041 };
/**
* U+0041 coded in UTF-8
*/
private final static byte[] glyph4_utf8 = { 0x41 };
private final static byte[][] glyphs_utf8 = { glyph1_utf8, glyph2_utf8, glyph3_utf8, glyph4_utf8 };
private final static char[][] glyphs_utf16 = { glyph1_utf16, glyph2_utf16, glyph3_utf16, glyph4_utf16 };
public TestResult perform()
{
try
{
for (int i = 0; i < glyphs_utf16.length; i++)
{
String s = new String(glyphs_utf16[i]);
byte[] b1 = new DERUTF8String(s).getEncoded();
byte temp[] = new byte[b1.length - 2];
System.arraycopy(b1, 2, temp, 0, b1.length - 2);
byte[] b2 = new DERUTF8String(Strings.fromUTF8ByteArray(new DEROctetString(temp).getOctets())).getEncoded();
if (!Arrays.areEqual(b1, b2))
{
return new SimpleTestResult(false, getName() + ": failed UTF-8 encoding and decoding");
}
if (!Arrays.areEqual(temp, glyphs_utf8[i]))
{
return new SimpleTestResult(false, getName() + ": failed UTF-8 encoding and decoding");
}
}
}
catch (Exception e)
{
return new SimpleTestResult(false, getName() + ": failed with Exception " + e.getMessage());
}
return new SimpleTestResult(true, getName() + ": Okay");
}
public String getName()
{
return "DERUTF8String";
}
public static void main(String[] args)
{
DERUTF8StringTest test = new DERUTF8StringTest();
TestResult result = test.perform();
System.out.println(result);
}
}
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