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YuOpenSSL

YuOpenSSL is a Delphi port of the OpenSSL cryptography and SSL/TSL library. All code is statically compiled into applications. OpenSSL DLLs are not needed. Over 5000 functions, procedures, constants, and types are ready to use in a single Delphi unit.

YuOpenSSL – OpenSSL for Delphi without DLLs

YuOpenSSL is the only OpenSSL implementation for Delphi which does not require OpenSSL DLLs. YuOpenSSL enables Delphi applications to compile encryption and Internet security into a single executable with no dependencies. This ensures complete control about the OpenSSL version and ends all worries about DLL deployment and locations.

OpenSSL is one of the most feature-rich cryptographc Internet security libraries. It includes message digests, ciphers, synchronous and asynchronous encryption, SSL, TLS, and much more. YuOpenSSL provides about 3000 functions & procedures, 3700 constants, and 700 types.

All OpenSSL functionaliy is contained in YuOpenSSL.pas, a single Delphi unit. It replaces the following DLLs:

Win64 Win32 YuOpenSSL Replacement
OpenSSL 3 libcrypto-3-x64.dll
libssl-3-x64.dll
legacy-x64.dll
libcrypto-3.dll
libssl-3.dll
legacy.dll
YuOpenSSL.pas (from YuOpenSSL-3)
OpenSSL 1.1.1 libcrypto-1_1-x64.dll
libssl-1_1-x64.dll
libcrypto-1_1.dll
libssl-1_1.dll
YuOpenSSL.pas

YuOpenSSL Versions

There are currently two versions of YuOpenSSL, available as separate packages. The YuOpenSSL license covers both versions:

YuOpenSSL-3

YuOpenSSL-3 is based on the OpenSSL 3.x series. It superseeds YuOpenSSL (see below) and is compatible with it just as OpenSSL 3.0 is compatible with OpenSSL 1.1.1.

This is where the main development takes place, including new features, optimizations, as well as security and bug fixes.

YuOpenSSL

YuOpenSSL (without “-3”) is based on OpenSSL 1.1.1. It is in maintainance mode and will see mostly security and bug fixes but very few or no new features.

Updating to YuOpenSSL-3 is recommended and should as easy as re-building applications with the new version.

Third Party Components and Library Support

YuOpenSSL currently supports the following 3rd party Internet components and libraries. With YuOpenSSL, they no longer require external OpenSSL DLLs for secure TLS / SSL Internet connections. All work with both YuOpenSSL versions.

ICS – Internet Component Suite

ICS can be compiled against YuOpenSSL. Starting with ICS 8.66, YuOpenSSL support is readily built in. For the older versions 8.65 and 8.64, minimally modified ICS sources are bundled with YuOpenSSL.

YuOpenSSL is enabled by $defining the YuOpenSSL compiler directive. This makes it easy to switch between ICS with OpenSSL DLLs and ICS with YuOpenSSL (and without DLLs).

Indy – Internet Direct

Indy can be compiled against YuOpenSSL. YuOpenSSL includes modified sources of the new Indy OpenSSL 1.1.1 IOHander. It adds TLS 1.3 as a new feature. YuOpenSSL is enabled by $defining the YuOpenSSL compiler directive. This makes it easy to switch between Indy with OpenSSL DLLs and Indy with YuOpenSSL (and without DLLs).

The new Indy OpenSSL 1.1.1 IOHandler is still in development. Testing is recommended.

Synapse TCP/IP and serial library

Synapse can be compiled against YuOpenSSL. YuOpenSSL includes modified sources of the Synapse OpenSSL bindings. YuOpenSSL is enabled by $defining the YuOpenSSL compiler directive. This makes it easy to switch between Synapse with OpenSSL DLLs and Synapse with YuOpenSSL (and without DLLs).

3rd Party Problems Detected During YuOpenSSL Development

YuOpenSSL development uncovered problems in Delphi 3rd party Internet components. They have been reported to their developers and are now fixed in latests versions. Here is the list:

ICS – Internet Component Suite

Indy – Internet Direct

products/openssl/index.txt · Last modified: 2021/11/17 20:11 (external edit)