Aclas ESDS

An electronic signature device (ESD) is a fiscal device used to generate an electronic digital signature. An electronic Digital Signature comprises of a 77 character set that is produced by an ESD machine with the help of a computer. It combines a number of factors e.g. sales transactions in a day to generate a hashed value that is stored on both the computer and ESD machine memory. If any change is made on the stored sales transactions of any day, no matter how slight the change, the signature stored in the ESD and one stored in the computer will not match. This makes it easy to prove data and sales tampering. Evidence of an ESD machine is sufficiently admissible in a court of law.