Best Open Source Cryptography Software 2026

Cryptography Software

Cryptography Windows Linux Protocols Clear Filters

Browse free open source Cryptography software and projects for Windows and Linux below. Use the toggles on the left to filter open source Cryptography software by OS, license, language, programming language, and project status.

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1

mendelson AS4

AS4 Solution for ENTSOG, e-SENS, ebMS, PEPPOL, ICS2, BDEW

mendelson AS4 is a free JAVA-based open source AS4 solution. Contains a monitoring- and configuration GUI (SWING), supports PUSH and PULL messages, ENTSOG AS4, e-SENS AS4, ebMS AS4, BDEW AS4, PEPPOL AS4, ICS2 AS4, signatures (SOAP, payload), selectable profile per trading partner, encryption (SOAP, payload), UserNameToken, TLS, pluggable into any servlet container, trading partner management, compression, certificate management

Downloads: 2 This Week

Last Update: 2026-04-14
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2

tcpconns

Tcpconns:simple package for rapid development of multi-threaded client/server solutions (JAVA OpenJDK17+) with TLS (V1.3).

Downloads: 1 This Week

Last Update: 2022-10-21
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3

Identityflow

Identityflow provides a framework for building protocol flows that perform distributed Identity operations. Examples of Identity Operations are Single Sign-On (SSO) and Attribute queries.

1 Review

Downloads: 0 This Week

Last Update: 2013-04-08
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4

SecureProxy

SecureProxy is an proxy application which sits in front of a web server and enforces general security policies which prevent clients from accessing restricted portions of the website or providing dangerous or unauthorized input.

Downloads: 0 This Week

Last Update: 2013-04-23
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5

samizdat

Kerberized Messaging Toolkit for Java

Samizdat is a toolkit for Java for building Kerberos secured distributed, message-oriented applications. The toolkit contains base classes that simplifies the management of Kerberos login contexts as well as flexibly sign and seal messages between principals using the Java GSS API. The toolkit contains Transformation classes for Kerberizing JMS traffic as well as a super-lean HTTP based protocol stack that supports both Synchronous (RPC) and Asynchronous modalities.

Downloads: 0 This Week

Last Update: 2015-08-06
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