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System.Security.Cryptography.OpenSsl.dll

Updated: Files Available: 439
Recently Updated Verified Metadata AI Analysis x86-64 (64 bit) x86 (32 bit) ARM64 D11D C020 EC20 FD1D 7ABD ARM (Thumb 2)

Download and install System.Security.Cryptography.OpenSsl.dll to fix missing or corrupted DLL errors.

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DLL Overview

Last Updated
May 22nd, 2026
Filename
System.Security.Cryptography.OpenSsl.dll
Company
Microsoft Corporation
Product
Microsoft® .NET
Description
System.Security.Cryptography.OpenSsl
Architecture
x86-64 (64 bit) x86 (32 bit) ARM64 Unknown Unknown Unknown Unknown Unknown ARM (Thumb 2)
Metadata Consensus
179/439 Files 40.8%
Higher percentages indicate stronger agreement across versions. View available versions or browse repository metadata to compare differences between variants.

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About System.Security.Cryptography.OpenSsl.dll

System.Security.Cryptography.OpenSsl.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

AI-assisted overview · Mar 21, 2024

Overview

The System.Security.Cryptography.OpenSsl.dll is a dynamic link library (DLL) file associated with the Microsoft® .NET framework, specifically tailored to integrate OpenSSL functionalities within .NET applications. OpenSSL is an open-source project that provides a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It's widely used for securing communications over computer networks against eavesdropping.

In the context of the .NET framework, this DLL provides classes and methods that allow .NET applications to leverage OpenSSL for cryptographic operations, including but not limited to encryption, decryption, authentication, and digital signatures. This integration is particularly crucial for cross-platform .NET applications running on operating systems where OpenSSL is the preferred library for cryptographic services, such as Linux and macOS.

If you encounter issues with System.Security.Cryptography.OpenSsl.dll, it might manifest as errors in .NET applications that perform cryptographic operations, potentially leading to failures in secure communications, data encryption, or authentication processes. These problems can arise due to the DLL being missing, corrupted, outdated, or due to compatibility issues between the .NET application and the OpenSSL version installed on the system.

To resolve issues related to this DLL, ensuring that your .NET applications and the .NET runtime itself are up-to-date is a good first step, as updates can include fixes and improvements for cryptographic libraries. Additionally, verifying the installation and correct configuration of OpenSSL on the system can help, as the .NET framework relies on the underlying OpenSSL library for its cryptographic services.

If the issue persists, considering the security implications of cryptographic operations, it might be beneficial to consult the official documentation for .NET and OpenSSL or seek support from the .NET community or professional IT services. They can provide guidance tailored to the specific cryptographic needs of your .NET application and the integration with OpenSSL.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving System.Security.Cryptography.OpenSsl.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because System.Security.Cryptography.OpenSsl.dll was not found. Re-installing the application may fix this problem.
System.Security.Cryptography.OpenSsl.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing System.Security.Cryptography.OpenSsl.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path): 

    regsvr32 "C:\path\to\System.Security.Cryptography.OpenSsl.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32: 

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\System.Security.Cryptography.OpenSsl.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run: 

    regsvr32 System.Security.Cryptography.OpenSsl.dll

How to Install System.Security.Cryptography.OpenSsl.dll

To install System.Security.Cryptography.OpenSsl.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\System.Security.Cryptography.OpenSsl.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\System.Security.Cryptography.OpenSsl.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\System.Security.Cryptography.OpenSsl.dll

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