Trait ecdsa::hazmat::SignPrimitive [−][src]
pub trait SignPrimitive<C> where
C: Curve + ProjectiveArithmetic,
SignatureSize<C>: ArrayLength<u8>, { fn try_sign_prehashed<K: Borrow<Scalar<C>> + Invert<Output = Scalar<C>>>(
&self,
ephemeral_scalar: &K,
hashed_msg: &Scalar<C>
) -> Result<Signature<C>>; }
This is supported on crate features
hazmat
and arithmetic
only.Expand description
Try to sign the given prehashed message using ECDSA.
This trait is intended to be implemented on a type with access
to the secret scalar via &self
, such as particular curve’s Scalar
type,
or potentially a key handle to a hardware device.
Required methods
Try to sign the prehashed message.
Accepts the following arguments:
ephemeral_scalar
: ECDSAk
value. MUST BE UNIFORMLY RANDOM!!!hashed_msg
: scalar computed from a hashed message digest to be signed. MUST BE OUTPUT OF A CRYPTOGRAPHICALLY SECURE DIGEST ALGORITHM!!!
Implementors
impl<C, T> SignPrimitive<C> for T where
C: Curve + ProjectiveArithmetic,
T: RecoverableSignPrimitive<C>,
SignatureSize<C>: ArrayLength<u8>,