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Update BINK.md

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@ -213,7 +213,7 @@ The constant $n$, not included in the BINK, is the order of the point $G$.
3. Compute the elliptic curve point $R = hK + sG$
4. Compute `digest = SHA1(m || R.x || R.y)`, where `||` represents byte concatenation
5. Convert `digest` to an integer
6. Let $h_t$ be the upper 28 bits of `digest`
6. Let $h_t$ be the lower 28 bits of `digest`
7. Compare $h$ and $h_t$, if they are equal, the product key is valid
#### Generation