cryptographic-message-syntax

cryptographic-message-syntax is a pure Rust implementation of Cryptographic Message Syntax (CMS) as defined by RFC 5652. Also included is Time-Stamp Protocol (TSP) (RFC 3161) client support.

From a high level CMS defines a way to digitally sign and authenticate arbitrary content.

This crate was originally developed to support code signing on Apple platforms. (See the apple-codesign Rust crate.) However, it is a generic library crate. But some historical decisions from its original may remain.