public static void main(String[] args) throws Exception {
s = new String("This is just a test!");
byte[] asciiBytes = s.getBytes("ASCII");
byte[] utf8Bytes = s.getBytes("UTF8");
byte[] iso8859_1Bytes = s.getBytes("ISO-8859-1");
byte[] unicodeBytes = s.getBytes("UnicodeBigUnmarked");
byte[] unicodeBytes2 = getBytes(s);
// test that unicode encoder is the correct one
if (!equalBytes(unicodeBytes, unicodeBytes2))
throw new Exception("Problem with unicode encoder being used.");
FileOutputStream fout = new FileOutputStream(fileName);
DerOutputStream derOut = new DerOutputStream();
System.out.println("Writing Java string out as various DER" + " encoded Strings now...");
derOut.putUTF8String(s);
derOut.putPrintableString(s);
derOut.putIA5String(s);
derOut.putT61String(s);
derOut.putBMPString(s);
derOut.derEncode(fout);
fout.close();
FileInputStream fis = new FileInputStream(fileName);
byte[] data = new byte[fis.available()];
fis.read(data);
DerInputStream derIn = new DerInputStream(data);
fis.close();
System.out.println("\nReading Strings back as DerValue's...\n");
DerValue der;
der = derIn.getDerValue();
verifyDER("UTF8", der, DerValue.tag_UTF8String, utf8Bytes);
der = derIn.getDerValue();
verifyDER("Printable", der, DerValue.tag_PrintableString, asciiBytes);
der = derIn.getDerValue();
verifyDER("IA5", der, DerValue.tag_IA5String, asciiBytes);
der = derIn.getDerValue();
verifyDER("T61", der, DerValue.tag_T61String, iso8859_1Bytes);
der = derIn.getDerValue();
verifyDER("BMP", der, DerValue.tag_BMPString, unicodeBytes);
if (derIn.available() > 0) throw new Exception("DerInputStream has extra data!");
derIn.reset();
System.out.println("Reading Strings back as Strings...\n");
verifyString("UTF8", derIn.getUTF8String());
verifyString("Printable", derIn.getPrintableString());
verifyString("IA5", derIn.getIA5String());
verifyString("T61", derIn.getT61String());
verifyString("BMP", derIn.getBMPString());
}
