| http://www.w3.org/ns/prov#value | - Cryptography has been used to provide secrecy and integrity, largely without regard for the security of the communicating systems. [0015] Various methods and devices have been used to enhance network security, including firewalls, identification and authentication (I&A), intrusion detectors, and virtual private networks (VPN). [0016] Firewalls have been used to protect an organization's internal r
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