CoseMultiSignMessage.TrySignDetached Method
Definition
Important
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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.
- 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
true
if destination
had sufficient length to receive the encoded message; otherwise, false
.
Exceptions
signer
is null
.
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.
Applies to
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