# Buildsheet autogenerated by ravenadm tool -- Do not edit.

NAMEBASE=		python-asn1crypto
VERSION=		1.5.1
KEYWORDS=		python
VARIANTS=		v12 v13
SDESC[v12]=		Performant ASN.1 handling library (3.12)
SDESC[v13]=		Performant ASN.1 handling library (3.13)
HOMEPAGE=		https://github.com/wbond/asn1crypto
CONTACT=		Python_Automaton[python@ironwolf.systems]

DOWNLOAD_GROUPS=	main
SITES[main]=		PYPIWHL/c9/7f/09065fd9e27da0eda08b4d6897f1c13535066174cc023af248fc2a8d5e5a
DISTFILE[1]=		asn1crypto-1.5.1-py2.py3-none-any.whl:main
DIST_SUBDIR=		python-src
DF_INDEX=		1
SPKGS[v12]=		single
SPKGS[v13]=		single

OPTIONS_AVAILABLE=	PY312 PY313
OPTIONS_STANDARD=	none
VOPTS[v12]=		PY312=ON PY313=OFF
VOPTS[v13]=		PY312=OFF PY313=ON

DISTNAME=		asn1crypto-1.5.1.dist-info

GENERATED=		yes

[PY312].USES_ON=			python:v12,wheel

[PY313].USES_ON=			python:v13,wheel

[FILE:4096:descriptions/desc.single]
# asn1crypto

A fast, pure Python library for parsing and serializing ASN.1 structures.

 - [Features]
 - [Why Another Python ASN.1 Library?]
 - [Related Crypto Libraries]
 - [Current Release]
 - [Dependencies]
 - [Installation]
 - [License]
 - [Security Policy]
 - [Documentation]
 - [Continuous Integration]
 - [Testing]
 - [Development]
 - [CI Tasks]

[GitHub Actions CI]
[CircleCI]
[PyPI]

## Features

In addition to an ASN.1 BER/DER decoder and DER serializer, the project
includes
a bunch of ASN.1 structures for use with various common cryptography
standards:

| Standard               | Module                                      |
Source                                                                     
                                           |
| ---------------------- | ------------------------------------------- |
----------------------------------------------------------------------------------------------------------------------
|
| X.509                  | [`asn1crypto.x509`]     | [RFC 5280]            
                                                           |
| CRL                    | [`asn1crypto.crl`]       | [RFC 5280]           
                                                            |
| CSR                    | [`asn1crypto.csr`]       | [RFC 2986], [RFC
2985]                       |
| OCSP                   | [`asn1crypto.ocsp`]     | [RFC 6960]            
                                                           |
| PKCS#12                | [`asn1crypto.pkcs12`] | [RFC 7292]              
                                                         |
| PKCS#8                 | [`asn1crypto.keys`]     | [RFC 5208]            
                                                           |
| PKCS#1 v2.1 (RSA keys) | [`asn1crypto.keys`]     | [RFC 3447]            
                                                           |
| DSA keys               | [`asn1crypto.keys`]     | [RFC 3279]            
                                                           |
| Elliptic curve keys    | [`asn1crypto.keys`]     | [SECG SEC1 V2]        
                                                               |
| PKCS#3 v1.4            | [`asn1crypto.algos`]   | [PKCS#3 v1.4]          
                                             |
| PKCS#5 v2.1            | [`asn1crypto.algos`]   | [PKCS#5 v2.1] |
| CMS (and PKCS#7)       | [`asn1crypto.cms`]       | [RFC 5652], [RFC
2315]                       |
| TSP                    | [`asn1crypto.tsp`]       | [RFC 3161]           
                                                            |
| PDF signatures         | [`asn1crypto.pdf`]       | [PDF 1.7]            
              |

## Why Another Python ASN.1 Library?

Python has long had the [pyasn1] and
[pyasn1_modules] available for
parsing and serializing ASN.1 structures. While the project does include a
comprehensive set of tools for parsing and serializing, the performance of
the
library can be very poor, especially when dealing with bit fields and
parsing
large structures such as CRLs.

After spending extensive time using *pyasn1*, the following issues were
identified:

 1. Poor performance
 2. Verbose, non-pythonic API
 3. Out-dated and incomplete definitions in *pyasn1-modules*
 4. No simple way to map data to native Python data structures
 5. No mechanism for overridden universal ASN.1 types

The *pyasn1* API is largely method driven, and uses extensive configuration
objects and lowerCamelCase names. There were no consistent options for
converting types of native Python data structures. Since the project
supports
out-dated versions of Python, many newer language features are unavailable
for use.

Time was spent trying to profile issues with the performance, however the
architecture made it hard to pin down the primary source of the poor
performance. Attempts were made to improve performance by utilizing
unreleased
patches and delaying parsing using the `Any` type. Even with such changes,
the
performance was still unacceptably slow.

Finally, a number of structures in the cryptographic space use universal
data


[FILE:127:distinfo]
db4e40728b728508912cbb3d44f19ce188f218e9eba635821bb4b68564f8fd67       105045 python-src/asn1crypto-1.5.1-py2.py3-none-any.whl