New answers tagged keys
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Accepted
Key exchange for encrypted firmware update
The theory is to use a key derivation function after Diffie-Hellman key exchange. A truncated hash would do if a single key is nedded. As DJB puts it (emphasis mine):
Given someone else's Curve25519 ...
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3
votes
Double- and -add algorithm
The points of an elliptic curve forms an abelian group under the usual point addition. In finite field case, the order is finite, i.e. the curve has finite number of points. The order can be prime or ...
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