Increased DNS forgery resistance through 0x20-bit encoding
Published: Oct 27, 2008
Abstract
We describe a novel, practical and simple technique to make DNS queries more resistant to poisoning attacks: mix the upper and lower case spelling of the domain name in the query. Fortuitously, almost all DNS authority servers preserve the mixed case encoding of the query in answer messages. Attackers hoping to poison a DNS cache must therefore guess the mixed-case encoding of the query, in addition to all other fields required in a DNS...
Paper Details
Title
Increased DNS forgery resistance through 0x20-bit encoding
Published Date
Oct 27, 2008
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