crypto-bigint 0.7.3

Pure Rust implementation of a big integer library which has been designed from the ground-up for use in cryptographic applications. Provides constant-time, no_std-friendly implementations of modern formulas using const generics.
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use serdect::serde::{Deserialize, Deserializer, Serialize, Serializer, de::Error};

use crate::BoxedUint;

impl<'de> Deserialize<'de> for BoxedUint {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        let slice = serdect::slice::deserialize_hex_or_bin_vec(deserializer)?;

        #[allow(clippy::cast_possible_truncation)]
        let bit_precision = (slice.len() as u32).checked_mul(8).ok_or(Error::custom(
            "Deserialized value overflows u32 bit precision!",
        ))?;

        Self::from_le_slice(&slice, bit_precision).map_err(Error::custom)
    }
}

impl Serialize for BoxedUint {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        serdect::slice::serialize_hex_lower_or_bin(&self.to_le_bytes(), serializer)
    }
}