CmsSigner Constructors

Reference

Definition

Namespace:: System.Security.Cryptography.Pkcs

Assembly:: System.Security.Cryptography.Pkcs.dll

Assembly:: System.Security.dll

Package:: System.Security.Cryptography.Pkcs v9.0.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Initializes a new instance of the CmsSigner class.

Overloads

CmsSigner()	Initializes a new instance of the CmsSigner class with default values.
CmsSigner(CspParameters)	Obsolete. Initializes a new instance of the CmsSigner class from a persisted key.
CmsSigner(SubjectIdentifierType)	Initializes a new instance of the CmsSigner class with a specified subject identifier type.
CmsSigner(X509Certificate2)	Initializes a new instance of the CmsSigner class with a specified signer certificate.
CmsSigner(SubjectIdentifierType, X509Certificate2)	Initializes a new instance of the CmsSigner class with a specified signer certificate and subject identifier type.
CmsSigner(SubjectIdentifierType, X509Certificate2, AsymmetricAlgorithm)	Initializes a new instance of the CmsSigner class with a specified signer certificate, subject identifier type, and private key object.
CmsSigner(SubjectIdentifierType, X509Certificate2, RSA, RSASignaturePadding)	Initializes a new instance of the CmsSigner class with a specified signer certificate, subject identifier type, private key object, and RSA signature padding.

CmsSigner()

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with default values.

public:
 CmsSigner();

public CmsSigner ();

Public Sub New ()

Remarks

This constructor results in the following default property values:

Property	Default value
SignerIdentifierType	SubjectIdentifierType.IssuerAndSerialNumber
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.ExcludeRoot

Applies to

CmsSigner(CspParameters)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Caution

CmsSigner(CspParameters) is obsolete and is not supported. Use an alternative constructor instead.

Initializes a new instance of the CmsSigner class from a persisted key.

public:
 CmsSigner(System::Security::Cryptography::CspParameters ^ parameters);

[System.Obsolete("CmsSigner(CspParameters) is obsolete and is not supported. Use an alternative constructor instead.", DiagnosticId="SYSLIB0034", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public CmsSigner (System.Security.Cryptography.CspParameters parameters);

public CmsSigner (System.Security.Cryptography.CspParameters parameters);

[<System.Obsolete("CmsSigner(CspParameters) is obsolete and is not supported. Use an alternative constructor instead.", DiagnosticId="SYSLIB0034", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.CspParameters -> System.Security.Cryptography.Pkcs.CmsSigner

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.CspParameters -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (parameters As CspParameters)

Parameters

parameters: CspParameters

The CSP parameters to describe which signing key to use.

Attributes: ObsoleteAttribute

Exceptions

PlatformNotSupportedException

.NET Core and .NET 5+ only: In all cases.

Remarks

This constructor results in the following default property values:

Property	Default value
SignerIdentifierType	SubjectIdentifierType.SubjectKeyIdentifier
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.None

Important

This method is only supported on .NET Framework. Its use on .NET Core throws a PlatformNotSupportedException.

Applies to

CmsSigner(SubjectIdentifierType)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with a specified subject identifier type.

public:
 CmsSigner(System::Security::Cryptography::Pkcs::SubjectIdentifierType signerIdentifierType);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType);

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.Pkcs.SubjectIdentifierType -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (signerIdentifierType As SubjectIdentifierType)

Parameters

signerIdentifierType: SubjectIdentifierType

The scheme to use for identifying which signing certificate was used.

Remarks

This constructor results in the following default property values:

Property	Default value
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.None if SignerIdentifierType is SubjectIdentifierType.NoSignature, X509IncludeOption.ExcludeRoot otherwise

Applies to

CmsSigner(X509Certificate2)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with a specified signer certificate.

public:
 CmsSigner(System::Security::Cryptography::X509Certificates::X509Certificate2 ^ certificate);

public CmsSigner (System.Security.Cryptography.X509Certificates.X509Certificate2? certificate);

public CmsSigner (System.Security.Cryptography.X509Certificates.X509Certificate2 certificate);

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.X509Certificates.X509Certificate2 -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (certificate As X509Certificate2)

Parameters

certificate: X509Certificate2

The certificate whose private key will be used to sign a message.

Remarks

This constructor results in the following default property values:

Property	Default value
SignerIdentifierType	SubjectIdentifierType.IssuerAndSerialNumber
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.ExcludeRoot

The signing certificate specified by the certificate parameter is not checked for validity on input. To validate the certificate prior to supplying it to this constructor, use the X509Chain.Build method.

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with a specified signer certificate and subject identifier type.

public:
 CmsSigner(System::Security::Cryptography::Pkcs::SubjectIdentifierType signerIdentifierType, System::Security::Cryptography::X509Certificates::X509Certificate2 ^ certificate);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType, System.Security.Cryptography.X509Certificates.X509Certificate2? certificate);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType, System.Security.Cryptography.X509Certificates.X509Certificate2 certificate);

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.Pkcs.SubjectIdentifierType * System.Security.Cryptography.X509Certificates.X509Certificate2 -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (signerIdentifierType As SubjectIdentifierType, certificate As X509Certificate2)

Parameters

signerIdentifierType: SubjectIdentifierType

The scheme to use for identifying which signing certificate was used.

certificate: X509Certificate2

The certificate whose private key will be used to sign a message.

Remarks

This constructor results in the following default property values:

Property	Default value
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.None if SignerIdentifierType is SubjectIdentifierType.NoSignature, X509IncludeOption.ExcludeRoot otherwise

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2, AsymmetricAlgorithm)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with a specified signer certificate, subject identifier type, and private key object.

public:
 CmsSigner(System::Security::Cryptography::Pkcs::SubjectIdentifierType signerIdentifierType, System::Security::Cryptography::X509Certificates::X509Certificate2 ^ certificate, System::Security::Cryptography::AsymmetricAlgorithm ^ privateKey);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType, System.Security.Cryptography.X509Certificates.X509Certificate2? certificate, System.Security.Cryptography.AsymmetricAlgorithm? privateKey);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType, System.Security.Cryptography.X509Certificates.X509Certificate2 certificate, System.Security.Cryptography.AsymmetricAlgorithm privateKey);

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.Pkcs.SubjectIdentifierType * System.Security.Cryptography.X509Certificates.X509Certificate2 * System.Security.Cryptography.AsymmetricAlgorithm -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (signerIdentifierType As SubjectIdentifierType, certificate As X509Certificate2, privateKey As AsymmetricAlgorithm)

Parameters

signerIdentifierType: SubjectIdentifierType

One of the enumeration values that specifies the scheme to use for identifying which signing certificate was used.

certificate: X509Certificate2

The certificate whose private key will be used to sign a message.

privateKey: AsymmetricAlgorithm

The private key object to use when signing the message.

Remarks

This constructor results in the following default property values:

Property	Default value
DigestAlgorithm	2.16.840.1.101.3.4.2.1 (SHA-256)
IncludeOption	X509IncludeOption.None if SignerIdentifierType is SubjectIdentifierType.NoSignature, X509IncludeOption.ExcludeRoot otherwise

This constructor does not validate that the privateKey parameter corresponds to the public key in certificate. If the keys don't match, the SignedCms class and ComputeCounterSignature(CmsSigner) method throw a CryptographicException during the signing process.

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2, RSA, RSASignaturePadding)

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Source:: CmsSigner.cs

Initializes a new instance of the CmsSigner class with a specified signer certificate, subject identifier type, private key object, and RSA signature padding.

public:
 CmsSigner(System::Security::Cryptography::Pkcs::SubjectIdentifierType signerIdentifierType, System::Security::Cryptography::X509Certificates::X509Certificate2 ^ certificate, System::Security::Cryptography::RSA ^ privateKey, System::Security::Cryptography::RSASignaturePadding ^ signaturePadding);

public CmsSigner (System.Security.Cryptography.Pkcs.SubjectIdentifierType signerIdentifierType, System.Security.Cryptography.X509Certificates.X509Certificate2? certificate, System.Security.Cryptography.RSA? privateKey, System.Security.Cryptography.RSASignaturePadding? signaturePadding);

new System.Security.Cryptography.Pkcs.CmsSigner : System.Security.Cryptography.Pkcs.SubjectIdentifierType * System.Security.Cryptography.X509Certificates.X509Certificate2 * System.Security.Cryptography.RSA * System.Security.Cryptography.RSASignaturePadding -> System.Security.Cryptography.Pkcs.CmsSigner

Public Sub New (signerIdentifierType As SubjectIdentifierType, certificate As X509Certificate2, privateKey As RSA, signaturePadding As RSASignaturePadding)

Parameters

signerIdentifierType: SubjectIdentifierType

One of the enumeration values that specifies the scheme to use for identifying which signing certificate was used.

certificate: X509Certificate2

The certificate whose private key will be used to sign a message.

privateKey: RSA

The private key object to use when signing the message.

signaturePadding: RSASignaturePadding

The RSA signature padding to use.

Applies to

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CmsSigner Constructors

Definition

Overloads

CmsSigner()

Remarks

Applies to

CmsSigner(CspParameters)

Parameters

Exceptions

Remarks

Applies to

CmsSigner(SubjectIdentifierType)

Parameters

Remarks

Applies to

CmsSigner(X509Certificate2)

Parameters

Remarks

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2)

Parameters

Remarks

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2, AsymmetricAlgorithm)

Parameters

Remarks

Applies to

CmsSigner(SubjectIdentifierType, X509Certificate2, RSA, RSASignaturePadding)

Parameters

Applies to

Additional resources