Tony Arcieri b95afa6169 ecdsa: Signer facade (gated under signer feature) (#109) ...

Adds a `ecdsa::signer::Signer` facade which handles parsing of
`SecretKey` data and zeroization of the private scalar.

The implementation is generic over the elliptic curve and digest
function, providing a `RandomizedDigestSigner` impl, and also when the
curve type impls `DigestPrimitive`, a `RandomizedSigner` impl.

2020-07-30 10:37:47 -07:00

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ecdsa: Signer facade (gated under signer feature) (#109)

2020-07-30 10:37:47 -07:00