====== 2. Sources ======

In this chapter you download the OpenSSL source code from GitHub.

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===== Overview =====

OpenSSL is developed on GitHub: [[https://github.com/openssl/openssl]]

There are two ways to get the code:
  - **Git Clone** (recommended) - All versions available, easy to update
  - **ZIP Download** - Simpler, but without version history

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===== Detailed Guides =====

  * [[.:github-klonen|Clone GitHub Repository]] - Step by step with Git
  * [[.:verzeichnisstruktur|Directory Structure]] - What's where in the source code?

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===== Quick Guide =====

<code powershell>
# 1. Create project folder
mkdir D:\Projects\openssl-3.6.0
cd D:\Projects\openssl-3.6.0

# 2. Clone OpenSSL (tag v3.6.0)
git clone --depth 1 --branch openssl-3.6.0 https://github.com/openssl/openssl.git src

# 3. Verify
cd src
git describe --tags
# Expected output: openssl-3.6.0
</code>

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===== Which Version? =====

^ Version ^ Status ^ Post-Quantum ^
| 3.6.0 | Current | ✅ ML-DSA, ML-KEM |
| 3.5.x | Stable | ⚠️ Experimental |
| 3.4.x | LTS | ❌ No |
| 3.0.x | LTS | ❌ No |

<WRAP tip>
For Post-Quantum cryptography you need **at least version 3.6.0**!
</WRAP>

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

  * [[.:github-klonen|Clone GitHub Repository - Detailed Guide]]
  * [[.:build:start|3. Build - Compile]]

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