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Re: Solution for US/Foreign Software?
jim bell proposes "crypto hooks":
>1. Write a program with limited encryption (40 bit?), with the encryption
>module in a file external to the main program.
>2. Get export approval for this program.
>3. Write a module which replaces the encryption file, increasing key size
>to whatever you REALLY wanted in the first place. (128-bit IDEA, 2000-bit
>4. Ship that new module with the old software to US customers.
>Naturally, that new module will "leak," so anybody who buys the old
>program out of the country can convert to a fully-functional version by
>downloading it from a foreign bbs that just happens to have it. The
>module can be encrypted/signed by the manufacturer so everyone can be sure
>of its identity and genuineness.
>Better than nothing, I suppose.
"Crypto hooks," basically the scheme you are proposing, were thought of by
the authorities and are not a bypass of the crypto export laws.
Views here are not the views of my Internet Service Provider or Government.
Timothy C. May | Crypto Anarchy: encryption, digital money,
[email protected] 408-728-0152 | anonymous networks, digital pseudonyms, zero
Corralitos, CA | knowledge, reputations, information markets,
Higher Power: 2^756839 | black markets, collapse of governments.
"National borders are just speed bumps on the information superhighway."