fedimint-core 0.13.0-beta.0

fedimint-core provides common code used by both client and server.
Documentation 
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use std::io::{Error, Read, Write};

use crate::encoding::{Decodable, DecodeError, Encodable};
use crate::module::registry::ModuleDecoderRegistry;

impl Encodable for secp256k1::ecdsa::Signature {
    fn consensus_encode<W: std::io::Write>(&self, writer: &mut W) -> Result<(), std::io::Error> {
        let bytes = self.serialize_compact();
        writer.write_all(&bytes)?;
        Ok(())
    }
}

impl Decodable for secp256k1::ecdsa::Signature {
    fn consensus_decode_partial<D: std::io::Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        Self::from_compact(&<[u8; 64]>::consensus_decode_partial(d, modules)?)
            .map_err(DecodeError::from_err)
    }
}

impl Encodable for secp256k1::PublicKey {
    fn consensus_encode<W: std::io::Write>(&self, writer: &mut W) -> Result<(), std::io::Error> {
        self.serialize().consensus_encode(writer)
    }
}

impl Decodable for secp256k1::PublicKey {
    fn consensus_decode_partial<D: std::io::Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        Self::from_slice(&<[u8; 33]>::consensus_decode_partial(d, modules)?)
            .map_err(DecodeError::from_err)
    }
}

impl Encodable for secp256k1::XOnlyPublicKey {
    fn consensus_encode<W: std::io::Write>(&self, writer: &mut W) -> Result<(), std::io::Error> {
        self.serialize().consensus_encode(writer)
    }
}

impl Decodable for secp256k1::XOnlyPublicKey {
    fn consensus_decode_partial<D: std::io::Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        Self::from_slice(&<[u8; 32]>::consensus_decode_partial(d, modules)?)
            .map_err(DecodeError::from_err)
    }
}

impl Encodable for secp256k1::SecretKey {
    fn consensus_encode<W: std::io::Write>(&self, writer: &mut W) -> Result<(), std::io::Error> {
        self.secret_bytes().consensus_encode(writer)
    }
}

impl Decodable for secp256k1::SecretKey {
    fn consensus_decode_partial<D: std::io::Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        Self::from_slice(&<[u8; 32]>::consensus_decode_partial(d, modules)?)
            .map_err(DecodeError::from_err)
    }
}

impl Encodable for secp256k1::schnorr::Signature {
    fn consensus_encode<W: std::io::Write>(&self, writer: &mut W) -> Result<(), std::io::Error> {
        let bytes = &self[..];
        assert_eq!(bytes.len(), secp256k1::constants::SCHNORR_SIGNATURE_SIZE);
        writer.write_all(bytes)?;
        Ok(())
    }
}

impl Decodable for secp256k1::schnorr::Signature {
    fn consensus_decode_partial<D: std::io::Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        let bytes = <[u8; secp256k1::constants::SCHNORR_SIGNATURE_SIZE]>::consensus_decode_partial(
            d, modules,
        )?;
        Self::from_slice(&bytes).map_err(DecodeError::from_err)
    }
}

impl Encodable for bitcoin::key::Keypair {
    fn consensus_encode<W: Write>(&self, writer: &mut W) -> Result<(), Error> {
        self.secret_bytes().consensus_encode(writer)
    }
}

impl Decodable for bitcoin::key::Keypair {
    fn consensus_decode_partial<D: Read>(
        d: &mut D,
        modules: &ModuleDecoderRegistry,
    ) -> Result<Self, DecodeError> {
        let sec_bytes = <[u8; 32]>::consensus_decode_partial(d, modules)?;
        Self::from_seckey_slice(bitcoin::secp256k1::global::SECP256K1, &sec_bytes) // FIXME: evaluate security risk of global ctx
            .map_err(DecodeError::from_err)
    }
}

#[cfg(test)]
mod tests;