March 12, 2002
Practical Aspects of Modern Cryptography
59
Digital Telephony & CALEA
nU.S. Congress response to law enforcement was to pass laws mandating that telephone companies guarantee wiretap access to their customers’ communications
nCommunications Assistance for Law Enforcement Act (CALEA), Oct. ’94
nFBI said $150M-$500M in ’92-94
nIndustry said cost would be $3B in ’94
nAs of ’98, est. $8B/year, $12M per wiretap
nCALEA still isn’t a reality (cost, tech difficulty)
nCALEA doesn’t help if the bits themselves are encrypted!  FBI needed something else…