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ECDsaCng::SignData Method (Stream^)

 

Generates a signature for the specified data stream, reading to the end of the stream.

Namespace:   System.Security.Cryptography
Assembly:  System.Core (in System.Core.dll)

public:
array<unsigned char>^ SignData(
	Stream^ data
)

Parameters

data
Type: System.IO::Stream^

The data stream to be signed.

Return Value

Type: array<System::Byte>^

A digital signature for the specified data stream.

Exception Condition
ArgumentNullException

data is null.

CryptographicException

The key information that is associated with the instance does not have a private key.

This method generates a signature for the specified data stream by hashing the input data using the HashAlgorithm property, and then signing the result.

The KeyContainerPermissionFlags::Sign flag is required if the Cryptography Next Generation (CNG) key is not randomly generated by the ECDsaCng object.

KeyContainerPermission

for permission to sign data. Demand value: Demand. Associated enumeration: KeyContainerPermissionFlags::Sign

.NET Framework
Available since 3.5
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