//==============================================================================
static String encryptXML (const XmlElement& xml, RSAKey privateKey)
{
MemoryOutputStream text;
text << xml.createDocument (StringRef(), true);
BigInteger val;
val.loadFromMemoryBlock (text.getMemoryBlock());
privateKey.applyToValue (val);
return val.toString (16);
}
String EncryptedString::decrypt (const String& encryptedString, const String& privateKey, bool inputIsHex)
{
RSAKey rsaKey (privateKey);
MemoryBlock encryptedMemoryBlock;
if (inputIsHex)
{
encryptedMemoryBlock.loadFromHexString (encryptedString);
}
else
{
encryptedMemoryBlock.fromBase64Encoding (encryptedString);
}
BigInteger stringAsData;
stringAsData.loadFromMemoryBlock (encryptedMemoryBlock);
rsaKey.applyToValue (stringAsData);
return stringAsData.toMemoryBlock().toString();
}
//==============================================================================
static XmlElement decryptXML (String hexData, RSAKey rsaPublicKey)
{
BigInteger val;
val.parseString (hexData, 16);
RSAKey key (rsaPublicKey);
jassert (key.isValid());
ScopedPointer<XmlElement> xml;
if (! val.isZero())
{
key.applyToValue (val);
const MemoryBlock mb (val.toMemoryBlock());
if (CharPointer_UTF8::isValidString (static_cast<const char*> (mb.getData()), (int) mb.getSize()))
xml = XmlDocument::parse (mb.toString());
}
return xml != nullptr ? *xml : XmlElement("key");
}
String EncryptedString::encrypt (const String& stringToEncrypt, const String& publicKey, bool resultAsHex)
{
RSAKey rsaKey (publicKey);
CharPointer_UTF8 stringPointer (stringToEncrypt.toUTF8());
MemoryBlock stringMemoryBlock (stringPointer.getAddress(), stringPointer.sizeInBytes());
BigInteger stringAsData;
stringAsData.loadFromMemoryBlock (stringMemoryBlock);
rsaKey.applyToValue (stringAsData);
if (resultAsHex)
{
MemoryBlock encryptedMemoryBlock (stringAsData.toMemoryBlock());
return String::toHexString ((char*) encryptedMemoryBlock.getData(), (int) encryptedMemoryBlock.getSize(), 0);
}
else
{
return stringAsData.toMemoryBlock().toBase64Encoding();
}
}
