====== CryptoConfig.DefaultMode Property ======

Gets or sets the global crypto mode.

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===== Definition =====

<code csharp>
namespace WvdS.System.Security.Cryptography

public static CryptoMode DefaultMode { get; set; }
</code>

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===== Property Value =====

| Type | [[..:cryptomode|CryptoMode]] |
| Default Value | ''CryptoMode.Classic'' |

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===== Remarks =====

This property determines the default behavior of all extension methods when no explicit ''CryptoMode'' is passed.

^  Value  ^  Behavior  ^
| Classic | No PQ extensions |
| Hybrid | RSA/ECDSA + ML-DSA |
| PostQuantum | ML-DSA/ML-KEM only |

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===== Examples =====

==== Global Configuration ====

<code csharp>
// At application startup
CryptoConfig.DefaultMode = CryptoMode.Hybrid;

// All subsequent operations use Hybrid
var cert = request.CreateSelfSigned(notBefore, notAfter);
// cert.HasPqSignature() == true
</code>

==== Override per Operation ====

<code csharp>
CryptoConfig.DefaultMode = CryptoMode.Classic;

// This operation uses PostQuantum anyway
var pqCert = request.CreateSelfSigned(
    notBefore,
    notAfter,
    CryptoMode.PostQuantum);
</code>

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===== Thread Safety =====

This property is thread-safe. Changes are immediately visible to all threads.

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===== See Also =====

  * [[.:start|CryptoConfig Class]]
  * [[..:cryptomode|CryptoMode Enum]]
  * [[.:enablepostquantum|EnablePostQuantum Method]]

{{tag>property}}

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