====== Quick Reference ======

Compact code examples for quick start. For detailed explanations, see the linked scenarios.

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===== PKI & Certificates =====

^  Example  ^  Description  ^  Details  ^
| [[.:pki-aufbau|PKI Infrastructure]] | Root CA, Intermediate CA, hierarchy | [[en:int:pqcrypt:szenarien:pki:start|-> PKI Scenarios]] |
| [[.:csr|Create CSR]] | Server, client, code signing | [[en:int:pqcrypt:szenarien:csr:start|-> CSR Scenarios]] |
| [[.:zertifikat-verwaltung|Certificate Management]] | Renew, re-key, revoke | [[en:int:pqcrypt:szenarien:verwaltung:start|-> Management Scenarios]] |
| [[.:validierung|Validation]] | Chain, hostname, key usage | [[en:int:pqcrypt:szenarien:validierung:start|-> Validation Scenarios]] |

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===== Signatures =====

^  Example  ^  Description  ^  Details  ^
| [[.:signaturen|Digital Signatures]] | RSA, ECDSA, CMS hybrid | [[en:int:pqcrypt:szenarien:signaturen:start|-> Signature Scenarios]] |

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===== Key Exchange & Encryption =====

^  Example  ^  Description  ^  Details  ^
| [[.:verschluesselung|Encryption]] | ML-KEM, hybrid, AES-GCM | [[en:int:pqcrypt:szenarien:verschluesselung:start|-> Encryption Scenarios]] |
| [[.:schluessel|Key Management]] | Generation, rotation, backup | [[en:int:pqcrypt:szenarien:schluessel:start|-> Key Scenarios]] |

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===== Import/Export =====

^  Example  ^  Description  ^  Details  ^
| [[.:import-export|Import/Export]] | PEM, PFX, PKCS#7 | [[en:int:pqcrypt:szenarien:import_export:start|-> Import/Export Scenarios]] |

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===== Quick Start: Complete Workflow =====

<code csharp>
using WvdS.System.Security.Cryptography;
using WvdS.System.Security.Cryptography.KeyExchange;
using WvdS.System.Security.Cryptography.Encryption;

// 1. Configuration
CryptoConfig.DefaultMode = CryptoMode.Hybrid;

// 2. Key Exchange
using var mlKem = MlKem.Create(MlKemParameterSet.MlKem768);
byte[] publicKey = mlKem.ExportPublicKey();

// Sender: Encapsulate
var encap = MlKem.Encapsulate(publicKey);
byte[] ciphertext = encap.Ciphertext;
byte[] senderSecret = encap.SharedSecret;

// Receiver: Decapsulate
byte[] receiverSecret = mlKem.Decapsulate(ciphertext);

// 3. Key Derivation
byte[] aesKey = KeyDerivationExtensions.DeriveKey(
    receiverSecret,
    outputLength: 32,
    info: Encoding.UTF8.GetBytes("AES-256-GCM"));

// 4. Encryption
var aes = new Aes256Gcm(aesKey);
byte[] encrypted = aes.Encrypt(plaintext);
byte[] decrypted = aes.Decrypt(encrypted);
</code>

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===== Further Reading =====

  * [[en:int:pqcrypt:szenarien:start|All Scenarios]] - Detailed documentation
  * [[en:int:pqcrypt:api:start|API Reference]] - Complete method signatures
  * [[en:int:pqcrypt:konzepte:algorithmen|Algorithms]] - ML-DSA, ML-KEM explained

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

{{tag>quickreference examples code quickstart}}