i'm very excited about this new work my team at @trailofbits is doing: we're building an ASN.1 API for PyCA Cryptography, giving users direct access to the same memory-safe, high-performance DER parser that Cryptography already uses for X.509:

https://blog.trailofbits.com/2025/04/18/sneak-peek-a-new-asn.1-api-for-python/