Title
Interactive decryption of DECT phone calls
Abstract
DECT is a widely deployed standard mostly used for short range wireless phones. So far, no method has been published which is able to recover the audio signal in a call that is encrypted and lasts only for a few minutes. In this paper, we present a method that recovers the audio signal sent from the phone to its base station in an encrypted call. To do so, we use a replay-attack against the phone to recover the key streams, which were used to encrypt the call. The method is applicable to short calls too, where not enough keystreams are available to recover the ciphers key using a key recovery attack on DSC. The method is fast and practical and can be executed at very low cost.
Year
DOI
Venue
2011
10.1145/1998412.1998426
WISEC
Keywords
Field
DocType
enough keystreams,short range wireless phone,encrypted call,dect phone call,low cost,base station,interactive decryption,short call,audio signal,ciphers key,key recovery attack,key stream,replay attacks,dsc,dect
Audio signal,Base station,Digital Enhanced Cordless Telecommunications,Wireless,Computer science,Computer security,Computer network,Encryption,Phone,Replay attack,Key-recovery attack
Conference
Citations 
PageRank 
References 
7
0.93
3
Authors
3
Name
Order
Citations
PageRank
Patrick McHardy170.93
Andreas Schuler270.93
Erik Tews328120.11