Module openssl::asn1[][src]

Expand description

Defines the format of certificiates

This module is used by x509 and other certificate building functions to describe time, strings, and objects.

Abstract Syntax Notation One is an interface description language. The specification comes from X.208 by OSI, and rewritten in X.680. ASN.1 describes properties of an object with a type set. Those types can be atomic, structured, choice, and other (CHOICE and ANY). These types are expressed as a number and the assignment operator ::= gives the type a name.

The implementation here provides a subset of the ASN.1 types that OpenSSL uses, especially in the properties of a certificate used in HTTPS.


use openssl::asn1::Asn1Time;
let tomorrow = Asn1Time::days_from_now(1);


Sequence of bytes

Non-UTC representation of time

Numeric representation

Object Identifier

Primary ASN.1 type used by OpenSSL

Time storage and comparison

Reference to an Asn1Time

The type of an ASN.1 value.

Difference between two ASN1 times.