facet-asn1

facet-asn1

A #![no_std] ASN.1 serializer and deserializer based on facet

Currently supports Distinguished Encoding Rules (DER) only

Basic Types

Other ASN.1 Types

Newtype structs using the facet::Shape::type_tag property can be used to create other basic types without any content validation:

use facet::Facet;

#[derive(Debug, Clone, Facet, PartialEq, Eq)]
#[facet(type_tag = "IA5String", transparent)]
struct IA5String(String);

Context Specific Type Tags

You can also set context specific BER/DER tags to a given number. Implicit tags must be set as transparent.

use facet::Facet;

// ImplicitString ::= [5] IMPLICIT UTF8String
#[derive(Debug, Facet, PartialEq, Eq)]
#[facet(type_tag = "5", transparent)]
struct ImplicitString(String);

// ExplciitString ::= [5] EXPLICIT UTF8String
#[derive(Debug, Facet, PartialEq, Eq)]
#[facet(type_tag = "5")]
struct ExplicitString(String);

The tag classes UNIVERSAL, APPLICATION, and PRIVATE are also supported in type_tags for greater flexibility.

Sponsors

Thanks to all individual sponsors:

...along with corporate sponsors:

...without whom this work could not exist.

Special thanks

The facet logo was drawn by Misiasart.

License

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.