X.509 certificate linter, written in Go

ASN.1 schema parsing and code generation

For all your DER / PEM inspection, editing, staging, and roundtrip needs

Checksums with Merkle trees and concurrency

Tool to analyze and troubleshoot x.509 & ssh certificates, encoded keys, ... (app/lib/api)

Package objectid offers convenient ASN.1 Object Identifier types with useful methods and an unbounded NumberForm type allowing X.667 support

Simple go asn1 parser

Package attestation implements ASN.1 encoding/decoding of Android Key attestation extension.

ASN.1 BER encoding and decoding.

example of a mutually-authenticated TLS client and server

ASN.1 BER Golang libraries for use with asn1bean fork

Various types and functions for commonly-used PKI operations