Custom Trust Store Management für PQ-kompatible PKI-Infrastrukturen.

using WvdS.System.Security.Cryptography.X509Certificates;
 
// Trust Store erstellen
using var trustStore = new PqTrustStore();
 
// Root CA hinzufügen
var rootCa = new X509Certificate2("root-ca.cer");
trustStore.AddTrustAnchor(rootCa, alias: "Company Root CA");
 
// Intermediate CA hinzufügen
var intermediateCa = new X509Certificate2("intermediate-ca.cer");
trustStore.AddIntermediate(intermediateCa, alias: "Issuing CA");

// Trust Store laden
using var trustStore = PqTrustStore.LoadFromPem("company-trust-store.pem");
 
// Zertifikat validieren
var userCert = new X509Certificate2("user.cer");
 
using var chain = new X509Chain();
bool isValid = chain.Build(userCert, trustStore, CryptoMode.Hybrid);

// PEM-Bundle speichern/laden
trustStore.SaveToPem("trust-store.pem");
var loadedStore = PqTrustStore.LoadFromPem("trust-store.pem");
 
// PKCS#7 (DER)
trustStore.SaveToPkcs7("trust-store.p7b");
var p7Store = PqTrustStore.LoadFromPkcs7("trust-store.p7b");

using var trustStore = new PqTrustStore();
 
// Windows Root CAs importieren
trustStore.ImportFromSystemRootStore();
 
// Als PEM exportieren für Air-Gapped Systeme
trustStore.SaveToPem("system-trust-store.pem");

// Nur Trust Anchors
var roots = trustStore.TrustAnchors;
 
// Nur Intermediate CAs
var intermediates = trustStore.IntermediateCAs;
 
// Suche nach Subject/Thumbprint
var found = trustStore.FindBySubjectName("Company");
var entry = trustStore.FindByThumbprint("A1B2C3...");

• X509ChainExtensions
• RevocationExtensions

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