AsymmetricSignatureProvider Constructor

Creates an instance of a signature provider that uses a AsymmetricSecurityKey for creating and verifying signatures.

Namespace:  System.IdentityModel.Tokens
Assembly:  System.IdentityModel.Tokens.Jwt (in System.IdentityModel.Tokens.Jwt.dll)

Syntax

'Declaration
Public Sub New ( _
    key As AsymmetricSecurityKey, _
    algorithm As String, _
    willCreateSignatures As Boolean _
)

public AsymmetricSignatureProvider(
    AsymmetricSecurityKey key,
    string algorithm,
    bool willCreateSignatures
)

public:
AsymmetricSignatureProvider(
    AsymmetricSecurityKey^ key, 
    String^ algorithm, 
    bool willCreateSignatures
)

new : 
        key:AsymmetricSecurityKey * 
        algorithm:string * 
        willCreateSignatures:bool -> AsymmetricSignatureProvider

public function AsymmetricSignatureProvider(
    key : AsymmetricSecurityKey, 
    algorithm : String, 
    willCreateSignatures : boolean
)

Parameters

• key
  Type: System.IdentityModel.Tokens.AsymmetricSecurityKey

  The AsymmetricSecurityKey that will be used for cryptographic operations.

• algorithm
  Type: System.String

  The signature algorithm to apply.

• willCreateSignatures
  Type: System.Boolean

  If a AsymmetricSignatureProvider is required to create signatures, this parameter should be set to true. Creating signatures requires that the AsymmetricSecurityKey has access to a private key. Verifying signatures (the default behavior), does not require access to the private key.

Exceptions

Exception	Condition
ArgumentNullException	key is null or algorithm is null.
ArgumentException	algorithm contains only whitespace.
ArgumentOutOfRangeException	willCreateSignatures is true and the key size forAsymmetricSignatureProvider is less than MinimumAsymmetricKeySizeInBitsForSigning. The key size for AsymmetricSecurityKey is less than MinimumAsymmetricKeySizeInBitsForVerifying. The key size is always checked.
InvalidOperationException	If the GetHashAlgorithmForSignature throws an exception. If GetHashAlgorithmForSignature returns null. If GetSignatureFormatter throws an exception. If GetSignatureFormatter returns null. This exception is thrown if GetSignatureDeformatter throws an exception. If GetSignatureDeformatter returns null. If SetHashAlgorithm throws an exception. If the SetHashAlgorithm throws an exception.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

AsymmetricSignatureProvider Class

System.IdentityModel.Tokens Namespace