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Fedora 43 cryptlib Important Deprecation Security Advisory 2026-47575c76a5

fedora
Calendar Grey July 23, 2026
Scroller Fedora
Update for cryptlib on Fedora 43 prepares for deprecation of obsolete algorithms in the upcoming release.
The Fedora update for cryptlib version 3.4.9.3 introduces security enhancements, streamlining the integration of encryption and authentication services into applications and prepar...

Summary

Cryptlib is a powerful security toolkit that allows even inexperienced crypto

programmers to easily add encryption and authentication services to their

software. The high-level interface provides anyone with the ability to add

strong security capabilities to an application in as little as half an hour,

without needing to know any of the low-level details that make the encryption

or authentication work. Because of this, cryptlib dramatically reduces the

cost involved in adding security to new or existing applications.

At the highest level, cryptlib provides implementations of complete security

services such as S/MIME and PGP/OpenPGP secure enveloping, SSL/TLS and

SSH secure sessions, CA services such as CMP, SCEP, RTCS, and OCSP, and other

security operations such as secure time-stamping. Since cryptlib uses

industry-standard X.509, S/MIME, PGP/OpenPGP, and SSH/SSL/TLS data formats,

the resulting encrypted or signed data can be easily transported to other

systems and processed there, and cryptlib itself runs on virtually any

operating system - cryptlib doesn't tie you to a single system.

This allows email, files and EDI transactions to be authenticated with

digital signatures and encrypted in an industry-standard format.

Update Information:

A third update after 3.4.9 to prepare for deprecation of obsolete algorithms and attributes in the upcoming 3.5 release.

Change Log

* Tue Jul 14 2026 Ralf Senderek 3.4.9.3-1 - Update Cryptlib to version 3.4.9.3 * Sat Jun 27 2026 Ralf Senderek 3.4.9.2-2 - Add cltls version 1.0 to the cryptlib tools * Wed Jun 10 2026 Ralf Senderek 3.4.9.2-1 - update Cryptlib to version 3.4.9.2 * Wed Jun 3 2026 Python Maint - 3.4.9.1-2 - Rebuilt for Python 3.15

References

Fedora Update Notification FEDORA-2026-47575c76a5 2026-07-24 01:12:11.053075+00:00 Name : cryptlib Product : Fedora 43 Version : 3.4.9.3 Release : 1.fc43 URL : https://github.com/cryptlib/cryptlib Summary : Security library and toolkit for encryption and authentication services Description : Cryptlib is a powerful security toolkit that allows even inexperienced crypto programmers to easily add encryption and authentication services to their software. The high-level interface provides anyone with the ability to add strong security capabilities to an application in as little as half an hour, without needing to know any of the low-level details that make the encryption or authentication work. Because of this, cryptlib dramatically reduces the cost involved in adding security to new or existing applications. At the highest level, cryptlib provides implementations of complete security services such as S/MIME and PGP/OpenPGP secure enveloping, SSL/TLS and SSH secure sessions, CA services such as CMP, SCEP, RTCS, and OCSP, and other security operations such as secure time-stamping. Since cryptlib uses industry-standard X.509, S/MIME, PGP/OpenPGP, and SSH/SSL/TLS data formats, the resulting encrypted or signed data can be easily transported to other systems and processed there, and cryptlib itself runs on virtually any operating system - cryptlib doesn't tie you to a single system. This allows email, files and EDI transactions to be authenticated with digital signatures and encrypted in an industry-standard format.

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-47575c76a5' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
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Name: cryptlib
Product: Fedora 43
Version: 3.4.9.3
Release: 1.fc43
Summary: Security library and toolkit for encryption and authentication services

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