I don't know why you think this; the asn1-rust crate is in fact used to implement not only X.509 certificate decoding[1] but also path validation[2]. Edit: Her

I don't know why you think this; the asn1-rust crate is in fact used to implement not only X.509 certificate decoding[1] but also path validation[2]. Edit: Here's an example of a CHOICE implemented with rust-asn1 that has more than three variants[3]. [1]: https://cryptography.io/en/latest/x509/reference/ https://cryptography.io/en/latest/x509/reference/ [2]: https://cryptography.io/en/latest/x509/verification/ https://cryptography.io/en/latest/x509/verification/ [3]: https://github.com/pyca/cryptography/blob/be6c53dd03172dde6af2de775a9d8e65e6b60fb0/src/rust/cryptography-x509/src/name.rs#L52-L83 https://github.com/pyca/cryptography/blob/be6c53dd03172dde6a...