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TSIG. Lambert M. Surhone

ID: 5550726

Lambert M. Surhone


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c. 120
2010 г.

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High Quality Content by WIKIPEDIA articles! TSIG (Transaction SIGnature) is a computer networking protocol defined in RFC 2845. It is used primarily by the Domain Name System (DNS) to provide a means of authenticating updates to a Dynamic DNS database, although it can also be used between servers and for regular queries. TSIG uses shared secret keys and one-way hashing to provide a cryptographically secure means of identifying each endpoint of a connection as being allowed to make or respond to a DNS update. Although queries to DNS may be made anonymously (but see DNSSEC), updates to DNS must be authenticated since they make lasting changes to the structure of the Internet naming system. The use of a key shared by the client making the update and the DNS server guarantees the authenticity of the update request. However, the update request may be passing over an insecure channel (the Internet). A one-way hashing function is used to prevent malicious observers from learning the secret...

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