public PdfEncryption(PdfDictionary pdfDict, byte[] password, byte[] documentId)
: base(pdfDict)
{
SetForbidRelease();
this.documentId = documentId;
int revision = ReadAndSetCryptoModeForStdHandler(pdfDict);
switch (revision)
{
case STANDARD_ENCRYPTION_40: {
StandardHandlerUsingStandard40 handlerStd40 = new StandardHandlerUsingStandard40(this.GetPdfObject(), password
, documentId, encryptMetadata);
permissions = handlerStd40.GetPermissions();
securityHandler = handlerStd40;
break;
}
case STANDARD_ENCRYPTION_128: {
StandardHandlerUsingStandard128 handlerStd128 = new StandardHandlerUsingStandard128(this.GetPdfObject(), password
, documentId, encryptMetadata);
permissions = handlerStd128.GetPermissions();
securityHandler = handlerStd128;
break;
}
case AES_128: {
StandardHandlerUsingAes128 handlerAes128 = new StandardHandlerUsingAes128(this.GetPdfObject(), password, documentId
, encryptMetadata);
permissions = handlerAes128.GetPermissions();
securityHandler = handlerAes128;
break;
}
case AES_256: {
StandardHandlerUsingAes256 aes256Handler = new StandardHandlerUsingAes256(this.GetPdfObject(), password);
permissions = aes256Handler.GetPermissions();
encryptMetadata = aes256Handler.IsEncryptMetadata();
securityHandler = aes256Handler;
break;
}
}
}
