Questions about particular use cases (integrity verification w/o private key, add E flag to primary key, import secp256k1 key)

[Mario Castelán Castro]

On 28/08/17 22:27, Robert J. Hansen wrote:
> secp256k1 is a certain field of numbers in which elliptical curve
> operations may be defined.  It is not an algorithm.  You do not have a
> secp256k1 key.  You have an ECDSA key which operates in the curve
> defined by secp256k1.

Although elliptic curves are defined *over* a field, they are not
themselves a field (or at least, I am not aware of any way to define a
field over them).

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