pub fn p256_point_to_spki(point: &[u8]) -> Result<Vec<u8>, IdentityError>Expand description
Wraps a raw uncompressed P-256 point as SubjectPublicKeyInfo DER.
ยงErrors
IdentityError::BadKey unless point is exactly the 65 bytes of an
uncompressed point beginning with 0x04. Compressed points are refused
rather than expanded: an authenticator that sends one is doing something
this path has never seen, and guessing is the wrong response.