mithril-stm 0.9.5

A Rust implementation of Mithril Stake-based Threshold Multisignatures (STMs).
Documentation 
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use super::AggregateSignatureType;

/// Error types for aggregation.
#[derive(Debug, Clone, thiserror::Error)]
pub enum AggregationError {
    /// Not enough signatures were collected, got this many instead.
    #[error("Not enough signatures. Got only {0} out of {1}.")]
    NotEnoughSignatures(u64, u64),

    #[error("Unsupported proof system: {0}")]
    UnsupportedProofSystem(AggregateSignatureType),

    /// There is a duplicate index
    #[error("Indices are not unique.")]
    IndexNotUnique,
}

/// Errors which can be output by Mithril aggregate verification.
#[derive(Debug, Clone, thiserror::Error)]
pub enum AggregateSignatureError {
    /// This error occurs when the serialization of the raw bytes failed
    #[error("Invalid bytes")]
    SerializationError,

    /// Batch verification of STM aggregate signatures failed
    #[error("Batch verification of STM aggregate signatures failed")]
    BatchInvalid,

    /// The proof system used in the aggregate signature is not supported
    #[error("Unsupported proof system: {0}")]
    UnsupportedProofSystem(AggregateSignatureType),
}