Digital Signatures Alice wants to convince others that she wrote message m. Computes digest d = h(m) with secure hash.
{"Image DocumentName": "Digital SignaturesAlice wants to convince others that she wrote message m. Computes digest d = h(m) with secure hash.", "Image ImageDescription": "Send <m,d> Digital Signature Standard (DSS) Why is this commonly done? Public key cryptography is really slow for large files, so if you only need to authenticate them, it is easier to create a unique digest, and sign that digest. Since it is hard to find two files that hash to the same digest, it is unlikely that an attacker could insert a false file.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}