X509KeyUsageFlags Enum
Definition
Important
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Defines how the certificate key can be used. If this value is not defined, the key can be used for any purpose.
This enumeration supports a bitwise combination of its member values.
public enum class X509KeyUsageFlags[System.Flags]
public enum X509KeyUsageFlags[<System.Flags>]
type X509KeyUsageFlags = Public Enum X509KeyUsageFlags- Inheritance
- Attributes
Fields
| Name | Value | Description |
|---|---|---|
| None | 0 | No key usage parameters. |
| EncipherOnly | 1 | The key can be used for encryption only. |
| CrlSign | 2 | The key can be used to sign a certificate revocation list (CRL). |
| KeyCertSign | 4 | The key can be used to sign certificates. |
| KeyAgreement | 8 | The key can be used to determine key agreement, such as a key created using the Diffie-Hellman key agreement algorithm. |
| DataEncipherment | 16 | The key can be used for data encryption. |
| KeyEncipherment | 32 | The key can be used for key encryption. |
| NonRepudiation | 64 | The key can be used for authentication. |
| DigitalSignature | 128 | The key can be used as a digital signature. |
| DecipherOnly | 32768 | The key can be used for decryption only. |
Remarks
This class is an implementation of a commonly used extension that is mapped by default to the CryptoConfig file. When the Extensions property of the X509Certificate2 class is invoked, this class can be used directly.
