====== 4.1 Check Version ======

This page shows how to verify your OpenSSL installation.

----

===== Basic Check =====

<code powershell>
# Path to openssl.exe
$openssl = "D:\Projects\openssl-3.6.0\bin\bin\openssl.exe"

# Show version
& $openssl version
</code>

Expected output:
<code>
OpenSSL 3.6.0 11 Feb 2025 (Library: OpenSSL 3.6.0 11 Feb 2025)
</code>

----

===== Detailed Build Information =====

<code powershell>
& $openssl version -a
</code>

Expected output:
<code>
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"
</code>

----

===== What Do the Fields Mean? =====

| Field | Meaning |
|-------|---------|
| ''platform: VC-WIN64A'' | Visual C++, Windows 64-bit |
| ''bn(64,64)'' | 64-bit bignum (fast) |
| ''compiler: cl'' | Microsoft C/C++ compiler |
| ''OPENSSLDIR'' | Configuration files (openssl.cnf) |
| ''MODULESDIR'' | Provider modules (fips.dll, legacy.dll) |

----

===== Check Configuration Paths =====

<code powershell>
# 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"
</code>

Expected modules:
<code>
    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
</code>

----

===== List Providers =====

<code powershell>
& $openssl list -providers
</code>

Expected output (standard build):
<code>
Providers:
  default
    name: OpenSSL Default Provider
    version: 3.6.0
    status: active
</code>

With FIPS:
<code>
Providers:
  base
    name: OpenSSL Base Provider
    version: 3.6.0
    status: active
  fips
    name: OpenSSL FIPS Provider
    version: 3.6.0
    status: active
</code>

----

===== Check DLL Dependencies =====

Make sure the DLLs are present:

<code powershell>
# Main directory
Get-ChildItem "D:\Projects\openssl-3.6.0\bin\bin\*.dll"

# Expected output:
# libcrypto-3-x64.dll
# libssl-3-x64.dll
</code>

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

Typical sizes:
| DLL | Size (approx.) |
|-----|----------------|
| libcrypto-3-x64.dll | 4-6 MB |
| libssl-3-x64.dll | 500-800 KB |

----

===== Problems? =====

| Symptom | Possible Cause | Solution |
|---------|----------------|----------|
| No output | PATH wrong | Use full path |
| Version < 3.6 | Wrong binary | Check correct directory |
| ''OPENSSLDIR'' wrong | Build error | Reconfigure with ''--prefix'' |

→ [[.:.:troubleshooting|Troubleshooting]]

----

===== Continue to =====

  * [[.:algorithmen-testen|Test Algorithms]]
  * [[.:fips-validieren|Validate FIPS Mode]]

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