Class X509Certificate

Provides methods that help you use X.509 v.3 certificates.

Inheritance
Object
X509Certificate
X509Certificate2
Inherited Members
Namespace: System.Security.Cryptography.X509Certificates
Assembly: System.Net.dll
Syntax
public class X509Certificate
Remarks

Supported formats: DER and PEM.

Constructors

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X509Certificate()

Initializes a new instance of the X509Certificate class.

Declaration
public X509Certificate()
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X509Certificate(Byte[])

Initializes a new instance of the X509Certificate class defined from a sequence of bytes representing an X.509v3 certificate.

Declaration
public X509Certificate(byte[] certificate)
Parameters
Type Name Description
Byte[] certificate

A byte array containing data from an X.509 certificate.
Remarks

DER and PEM encoding are the supported formats.

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X509Certificate(String)

Initializes a new instance of the X509Certificate class defined from a string with the content of an X.509v3 certificate.

Declaration
public X509Certificate(string certificate)
Parameters
Type Name Description
String certificate

A string containing a X.509 certificate.
Remarks

Supported formats: DER and PEM. This methods is exclusive of .NET nanoFramework. The equivalent .NET constructor accepts a file name as the parameter.

Fields

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_effectiveDate

Contains the effective date of the certificate.

Declaration
protected DateTime _effectiveDate
Field Value
Type Description
DateTime
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_expirationDate

Contains the expiration date of the certificate.

Declaration
protected DateTime _expirationDate
Field Value
Type Description
DateTime
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_handle

Contains the handle.

Declaration
protected byte[] _handle
Field Value
Type Description
Byte[]
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_issuer

Contains the certificate issuer.

Declaration
protected string _issuer
Field Value
Type Description
String
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_sessionHandle

Contains the session handle.

Declaration
protected byte[] _sessionHandle
Field Value
Type Description
Byte[]
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_subject

Contains the subject.

Declaration
protected string _subject
Field Value
Type Description
String

Properties

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Issuer

Gets the name of the certificate authority that issued the X.509v3 certificate.

Declaration
public virtual string Issuer { get; }
Property Value
Type Description
String

The name of the certificate authority that issued the X.509v3 certificate.
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Subject

Gets the subject distinguished name from the certificate.

Declaration
public virtual string Subject { get; }
Property Value
Type Description
String

The subject distinguished name from the certificate.

Methods

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GetEffectiveDate()

Returns the effective date of this X.509v3 certificate.

Declaration
public virtual DateTime GetEffectiveDate()
Returns
Type Description
DateTime

The effective date for this X.509 certificate.
Remarks

This methods is exclusive of nanoFramework. The equivalent .NET method is GetEffectiveDateString().

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GetExpirationDate()

Returns the expiration date of this X.509v3 certificate.

Declaration
public virtual DateTime GetExpirationDate()
Returns
Type Description
DateTime

The expiration date for this X.509 certificate.
Remarks

This methods is exclusive of nanoFramework. The equivalent .NET method is GetExpirationDateString().

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GetRawCertData()

Returns the raw data for the entire X.509v3 certificate as an array of bytes.

Declaration
public virtual byte[] GetRawCertData()
Returns
Type Description
Byte[]

A byte array containing the X.509 certificate data.

Extension Methods