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by mr_spothawk 4473 days ago
It's not clear to me what the variables are in his equations:

> The ElGamal signature system: BH(M) = AR RS.

H = hash, M = message, S = secret... What about all the others? I'll spend some time today reading more about this, if anybody has suggestions where to start I'd be grateful.

Meta: this has front page for more than an hour but has no comments, are you 54 up-voters reading it?
2 comments
pbsd 4473 days ago
R and S are the two signature elements. A is the public key, B is the common base. That is, A = B^a in prime fields, or A = a * B on elliptic curves. R is a random element used for each signature, usually R = k * B for randomly generated k.

Note that those equations are only covering the verification part of the scheme.

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kzrdude 4473 days ago
> Meta: this has front page for more than an hour but has no comments, are you 54 up-voters reading it?

Yes, but I can't add anything intelligent to this article at all! :-)

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