NETWORK SECURITY
ON
Digital Signatures

ABSTRACT

Our objective is to provide the tools for certifying the origin of the file where it come from. When transferring important documents it is often necessary to certify in a reliable way who is actually the sender of a given document. One approach for certifying the origin of documents and files is by using the digital signature.

The digital signing is a mechanism for certifying the origin and the integrity of transmitted information. In the process of digitally signing, additional information called digital signature is added to the given document, calculated using the contents of the document and some private key. At a later stage, this information can be used to check the origin of the signed document.