CngKeyUsages Enum
Definition
Important
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Specifies the cryptographic operations that a Cryptography Next Generation (CNG) key may be used with.
This enumeration supports a bitwise combination of its member values.
public enum class CngKeyUsages[System.Flags]
public enum CngKeyUsages[<System.Flags>]
type CngKeyUsages = Public Enum CngKeyUsages- Inheritance
- Attributes
Fields
| Name | Value | Description |
|---|---|---|
| None | 0 | No usage values are assigned to the key. |
| Decryption | 1 | The key can be used for encryption and decryption. |
| Signing | 2 | The key can be used for signing and verification. |
| KeyAgreement | 4 | The key can be used for secret agreement generation and key exchange. |
| AllUsages | 16777215 | The key can be used for all purposes. |
Remarks
Not all operations apply to each key. For example, an Elliptic Curve Digital Signature Algorithm (ECDSA) key cannot be used for decryption even if the Decryption usage is set.
