March 12, 2002
Practical Aspects of Modern Cryptography
74
DMCA cases/issues (2)
nCPHack
nCyberPatrol (owned by Mattel, Inc.) is your typical “parental filter” for web browsers
nCP’s list of banned web sites is encrypted (using a secret algorithm) as part of the program
nJansson & Skala figured out how to break the encryption scheme (in a very nice piece of cryptanalysis)
nThey write a program, CPHack, which shows you the list of banned sites on your copy of CP.
nMattel sues