CoseMultiSignMessage.TrySignDetached Method

Definition

Namespace:

System.Security.Cryptography.Cose

Assembly:

System.Security.Cryptography.Cose.dll

Package:

System.Security.Cryptography.Cose v9.0.0-preview.3.24172.9

Source:

CoseMultiSignMessage.cs

Attempts to sign the specified content and encode it as a COSE_Sign message with detached content into the specified buffer.

public static bool TrySignDetached (ReadOnlySpan<byte> detachedContent, Span<byte> destination, System.Security.Cryptography.Cose.CoseSigner signer, out int bytesWritten, System.Security.Cryptography.Cose.CoseHeaderMap? protectedHeaders = default, System.Security.Cryptography.Cose.CoseHeaderMap? unprotectedHeaders = default, ReadOnlySpan<byte> associatedData = default);

static member TrySignDetached : ReadOnlySpan<byte> * Span<byte> * System.Security.Cryptography.Cose.CoseSigner * int * System.Security.Cryptography.Cose.CoseHeaderMap * System.Security.Cryptography.Cose.CoseHeaderMap * ReadOnlySpan<byte> -> bool

Public Shared Function TrySignDetached (detachedContent As ReadOnlySpan(Of Byte), destination As Span(Of Byte), signer As CoseSigner, ByRef bytesWritten As Integer, Optional protectedHeaders As CoseHeaderMap = Nothing, Optional unprotectedHeaders As CoseHeaderMap = Nothing, Optional associatedData As ReadOnlySpan(Of Byte) = Nothing) As Boolean

Parameters

detachedContent

ReadOnlySpan<Byte>

The content to sign.

destination

Span<Byte>

The buffer in which to write the encoded bytes.

signer

CoseSigner

The signer information used to sign detachedContent.

bytesWritten

Int32

On success, receives the number of bytes written to destination.

protectedHeaders

CoseHeaderMap

The protected header parameters to append to the message's content layer.

unprotectedHeaders

CoseHeaderMap

The unprotected header parameters to append to the message's content layer.

associatedData

ReadOnlySpan<Byte>

The extra data associated with the signature, which must also be provided during verification.

Returns

Boolean

true if destination had sufficient length to receive the encoded message; otherwise, false.

Exceptions

ArgumentNullException

signer is null.

ArgumentException

The protectedHeaders and unprotectedHeaders collections have one or more labels in common.

-or-

The ProtectedHeaders and UnprotectedHeaders collections in signer have one or more labels in common.

-or-

One or more of the labels specified in a CriticalHeaders header is missing.