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Informations about the package php-asn1
PHPASN1
A PHP Framework that allows you to encode and decode arbitrary ASN.1 structures using the ITU-T X.690 Encoding Rules. This encoding is very frequently used in X.509 PKI environments or the communication between heterogeneous computer systems.
The API allows you to encode ASN.1 structures to create binary data such as certificate signing requests (CSR), X.509 certificates or certificate revocation lists (CRL). PHPASN1 can also read BER encoded binary data into separate PHP objects that can be manipulated by the user and reencoded afterwards.
The changelog can now be found at CHANGELOG.md.
Dependencies
PHPASN1 requires at a PHP versions receiving security support and either the gmp or bcmath extension.
Support for older PHP versions:
- For PHP version 5 use
v1.x. - For PHP version 7 use
v2.5.x.
For the loading of object identifier names directly from the web curl is used.
Installation
The preferred way to install this library is to rely on Composer:
Usage
Encoding ASN.1 Structures
PHPASN1 offers you a class for each of the implemented ASN.1 universal types. The constructors should be pretty self explanatory so you should have no big trouble getting started. All data will be encoded using DER encoding
Decoding binary data
Decoding BER encoded binary data is just as easy as encoding it:
If you already know exactly how your expected data should look like you can use the FG\ASN1\TemplateParser:
You can use this function to make sure your data has exactly the format you are expecting.
Navigating decoded data
All constructed classes (i.e. Sequence and Set) can be navigated by array access or using an iterator.
You can find examples
here,
here and
here.
Give me more examples!
To see some example usage of the API classes or some generated output check out the examples.
Contributing
How do I contribute?
This project is no longer maintained and thus does not accept any new contributions.
Historical contributors
Huge thanks to Friedrich Große. He maintained this library for 11 years. And of course to all contributors so far!
License
This library is distributed under the MIT License.
