Join IRC channel about a Japanese rhythm game, wind up talking about the diffie-hellman key exchange on 8-bit microcontrollers.
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Replying to @marcan42
now I'm curious; under what circumstances does it make sense to do DH on an 8-bit MCU?
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Replying to @11rcombs
Same circumstances as anywhere else. If you need secure key exchange.
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Replying to @marcan42
I guess a lot of the time I end up asking "why use an 8-bit micro when you could have an M0"
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Replying to @11rcombs
We weren't picking micros, just talking about DH performance ;)
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Also, as far as I know, most smart card class secure elements are still 8-bit MCUs.
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Those secure elements have hardware accelerators for modular exponentiation and other bignum arithmetic bolted on the side, though.
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But you may want to use them with more modern EC though.
4:31 AM - 27 Jan 2017
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