CmsSigner(String, String, SubjectIdentifierType) Constructor

Initialize a new instance of the CmsSigner class.

Namespace: MimeKit.Cryptography
Assembly: MimeKit (in MimeKit.dll) Version: 4.7.1

Syntax

public CmsSigner(
	string fileName,
	string password,
	SubjectIdentifierType signerIdentifierType = SubjectIdentifierType.IssuerAndSerialNumber
)

fileName String: The raw certificate and key data in pkcs12 format.
password String: The password to unlock the stream.
signerIdentifierType SubjectIdentifierType (Optional): The scheme used for identifying the signer certificate.

Exceptions

Exception	Condition
ArgumentNullException	fileName is null. -or- password is null.
ArgumentException	fileName is a zero-length string, contains only white space, or contains one or more invalid characters. -or- fileName does not contain a private key. -or- fileName does not contain a certificate that could be used for signing.
DirectoryNotFoundException	fileName is an invalid file path.
FileNotFoundException	The specified file path could not be found.
UnauthorizedAccessException	The user does not have access to read the specified file.
IOException	An I/O error occurred.

Remarks

Creates a new CmsSigner, loading the X.509 certificate and private key from the specified file.

The initial value of the DigestAlgorithm will be set to Sha256 and both the SignedAttributes and UnsignedAttributes properties will be initialized to empty tables.