differential work factor cryptography
A technology embedded in Lotus Notes Release 4.0 that allows export of 64 bit cryptography without special permits (see export law) while assuring the US government that government agencies can decrypt messages encoded using the technology as easily as they can decrypt conventional 40 bit cryptography. The government generated a public/private key pair and gave the public key to Lotus. Lotus uses this public key to bind into each Lotus Notes 64 bit key a 24 bit work factor reduction capability. A cracker must still decrypt a 64 key. (See public key cryptography in the hard copy dictionary.)
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