NON MALLEABLE ENCRYPTION APPARATUS AND METHOD

An apparatus comprising an encryption processor and a signing processor is provided. The encryption processor takes a data message and provides an encryption using an encryption process. The signing processor takes the encryption and adds a signature to the encryption using a signing process. The encryption processor can employ EIGamal encryption. The encryption processor may use a function of the encryption to perform the signing process. The signing processor may perform a Schnorr signature process for the signing process. The signing processor uses part of the encryption process to perform the signing process, such as a random number used during the encryption process.