Millions of new electronic documents and electronic signatures are created daily. The E-SIGN Act of 2000, the Uniform Electronic Transactions Act (UETA), and the European Signature Act established the legal validity of electronic documents. As transactions go increasingly digital, opportunities for hi-tech document tampering will grow exponentially. DocVerify’s patent-pending technology short circuits those opportunities by providing the first secure electronic authentication document storage system that also lets multiple users corroborate the legitimacy of a given document or file as well as a fully featured Web 2.0 electronic signature system. Other services and systems rely on hash cryptography alone to "guarantee" that a document or file has not been tampered with. Hash cryptography can be hacked. The two most-commonly used cryptographic "hash" functions are MD5 and the newer SHA-1. In 2005, security flaws were identified in the SHA-1 algorithm as the following article makes clear: |