[−][src]Trait secp256kfun::hash::Tagged

pub trait Tagged: Default + Clone {
    fn tagged(&self, tag: &[u8]) -> Self;
}

Extension trait to "tag" a hash as described in BIP-340.

Required methods

fn tagged(&self, tag: &[u8]) -> Self

Returns the tagged (domain separated) SHA256 instance. This is meant be used on SHA256 state with an empty buffer.

Example

use digest::Digest;
use secp256kfun::hash::Tagged;
let mut hash = sha2::Sha256::default().tagged(b"my-domain/my-purpose");
hash.update(b"hello world");
println!("{:?}", hash.finalize());
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Implementors

impl<H: BlockInput + Digest + Default + Clone> Tagged for H where
    <H as BlockInput>::BlockSize: PartialDiv<H::OutputSize>,
    <<H as BlockInput>::BlockSize as PartialDiv<H::OutputSize>>::Output: Unsigned, [src]

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