[−][src]Trait ecdsa::hazmat::SignPrimitive

pub trait SignPrimitive<C> where
    C: Curve + Arithmetic,
    SignatureSize<C>: ArrayLength<u8>, {
    fn try_sign_prehashed<K: Borrow<C::Scalar> + Invert<Output = C::Scalar>>(
        &self, 
        ephemeral_scalar: &K, 
        hashed_msg: &ElementBytes<C>
    ) -> Result<Signature<C>, Error>;
}
This is supported on feature="hazmat" only.

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

fn try_sign_prehashed<K: Borrow<C::Scalar> + Invert<Output = C::Scalar>>(
    &self,
    ephemeral_scalar: &K,
    hashed_msg: &ElementBytes<C>
) -> Result<Signature<C>, Error>

This is supported on feature="hazmat" only.

Try to sign the prehashed message.

Accepts the following arguments:

  • ephemeral_scalar: ECDSA k value. MUST BE UNIFORMLY RANDOM!!!
  • hashed_msg: hashed message digest to be signed. MUST BE OUTPUT OF A CRYPTOGRAPHICALLY SECURE DIGEST ALGORITHM!!!
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Implementors

impl<C, T> SignPrimitive<C> for T where
    C: Curve + Arithmetic,
    T: RecoverableSignPrimitive<C>,
    SignatureSize<C>: ArrayLength<u8>, [src]

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