This page shows how to verify your OpenSSL installation.

# Path to openssl.exe
$openssl = "D:\Projects\openssl-3.6.0\bin\bin\openssl.exe"
 
# Show version
& $openssl version

Expected output:

OpenSSL 3.6.0 11 Feb 2025 (Library: OpenSSL 3.6.0 11 Feb 2025)

& $openssl version -a

Expected output:

OpenSSL 3.6.0 11 Feb 2025 (Library: OpenSSL 3.6.0 11 Feb 2025)
built on: Mon Feb 17 10:23:45 2025 UTC
platform: VC-WIN64A
options:  bn(64,64)
compiler: cl /Zi /Fdossl_static.pdb /Gs0 /GF /Gy /MD /W3 /wd4090 /nologo /O2
OPENSSLDIR: "D:\Projects\openssl-3.6.0\bin\ssl"
ENGINESDIR: "D:\Projects\openssl-3.6.0\bin\lib\engines-3"
MODULESDIR: "D:\Projects\openssl-3.6.0\bin\lib\ossl-modules"

# Check if openssl.cnf exists
Test-Path "D:\Projects\openssl-3.6.0\bin\ssl\openssl.cnf"
 
# Check if modules exist
Get-ChildItem "D:\Projects\openssl-3.6.0\bin\lib\ossl-modules"

Expected modules:

    Directory: D:\Projects\openssl-3.6.0\bin\lib\ossl-modules

Mode         Length Name
----         ------ ----
-a----       524288 legacy.dll
-a----      1048576 default.dll
-a----      2097152 fips.dll      # only with enable-fips

& $openssl list -providers

Expected output (standard build):

Providers:
  default
    name: OpenSSL Default Provider
    version: 3.6.0
    status: active

With FIPS:

Providers:
  base
    name: OpenSSL Base Provider
    version: 3.6.0
    status: active
  fips
    name: OpenSSL FIPS Provider
    version: 3.6.0
    status: active

Make sure the DLLs are present:

# Main directory
Get-ChildItem "D:\Projects\openssl-3.6.0\bin\bin\*.dll"
 
# Expected output:
# libcrypto-3-x64.dll
# libssl-3-x64.dll

# Check DLL sizes (should not be empty!)
Get-ChildItem "D:\Projects\openssl-3.6.0\bin\bin\*.dll" | Format-Table Name, Length

Typical sizes:

→ Troubleshooting

• Test Algorithms
• Validate FIPS Mode

Wolfgang van der Stille @ EMSR DATA d.o.o. - Post-Quantum Cryptography Professional