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MimeKit

CryptographyContextSignAsync Method

Asynchronously sign the content using the specified signer and digest algorithm.

Namespace:  MimeKit.Cryptography
Assembly:  MimeKit (in MimeKit.dll) Version: 3.0.0
Syntax
C#
public abstract Task<MimePart> SignAsync(
	MailboxAddress signer,
	DigestAlgorithm digestAlgo,
	Stream content,
	CancellationToken cancellationToken = default
)

Parameters

signer
Type: MimeKitMailboxAddress
The signer.
digestAlgo
Type: MimeKit.CryptographyDigestAlgorithm
The digest algorithm to use for signing.
content
Type: System.IOStream
The content.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: TaskMimePart
A new MimePart instance containing the detached signature data.
Exceptions
ExceptionCondition
ArgumentNullException

signer is null.

-or-

content is null.

ArgumentOutOfRangeExceptiondigestAlgo is out of range.
NotSupportedException The specified DigestAlgorithm is not supported by this context.
OperationCanceledException The operation was canceled via the cancellation token.
CertificateNotFoundException A signing certificate could not be found for signer.
Remarks
Asynchronously signs the content using the specified signer and digest algorithm.
See Also