EnvelopedCms Class

Definition

Namespace:

System.Security.Cryptography.Pkcs

Assembly:

System.Security.Cryptography.Pkcs.dll

Represents a CMS/PKCS#7 structure for enveloped data.

public ref class EnvelopedCms sealed

public sealed class EnvelopedCms

type EnvelopedCms = class

Public NotInheritable Class EnvelopedCms

Inheritance

Object

EnvelopedCms

Remarks

The Cryptographic Message Syntax RFC specifies the following MIME types and file name extensions for CMS/PKCS#7 messages with these content types.

Content type	MIME type	Extension
envelopedData	application/pkcs7-mime	.p7m
signedData	application/pkcs7-signature	.p7s.p7c

Constructors

EnvelopedCms()	Initializes a new instance of the EnvelopedCms class with default values.
EnvelopedCms(ContentInfo, AlgorithmIdentifier)	Initializes a new instance of the EnvelopedCms class with a specified symmetric encryption algorithm and content information.
EnvelopedCms(ContentInfo)	Initializes a new instance of the EnvelopedCms class with specified content information.

Properties

Certificates	Gets the collection of certificates associated with the enveloped CMS/PKCS#7 message.
ContentEncryptionAlgorithm	Gets the identifier of the symmetric encryption algorithm associated with this message.
ContentInfo	Gets the content information for the enveloped CMS/PKCS#7 message.
RecipientInfos	Gets a collection that represents the recipients list for a decoded message. The default value is an empty collection.
UnprotectedAttributes	Gets the collection of unprotected (unencrypted) attributes associated with the enveloped CMS/PKCS#7 message.
Version	Gets the version of the decoded enveloped CMS/PKCS#7 message.

Methods

Decode(Byte[])	Decodes an array of bytes as a CMS/PKCS#7 EnvelopedData message.
Decode(ReadOnlySpan<Byte>)	Decodes the provided data as a CMS/PKCS#7 EnvelopedData message.
Decrypt()	Decrypts the contents of the decoded enveloped CMS/PKCS#7 message via any available recipient by searching certificate stores for a matching certificate and key.
Decrypt(RecipientInfo, AsymmetricAlgorithm)	Decrypts the contents of the decoded enveloped CMS/PKCS#7 message via a specified recipient info with a specified private key.
Decrypt(RecipientInfo, X509Certificate2Collection)	Decrypts the contents of the decoded enveloped CMS/PKCS#7 message via a specified recipient info by searching certificate stores and a provided collection for a matching certificate and key.
Decrypt(RecipientInfo)	Decrypts the contents of the decoded enveloped CMS/PKCS#7 message via a specified recipient info by searching certificate stores for a matching certificate and key.
Decrypt(X509Certificate2Collection)	Decrypts the contents of the decoded enveloped CMS/PKCS#7 message via any available recipient info by searching certificate stores and a provided collection for a matching certificate and key.
Encode()	Encodes the contents of the enveloped CMS/PKCS#7 message and returns it as a byte array.
Encrypt(CmsRecipient)	Encrypts the contents of the CMS/PKCS#7 message for a single specified recipient.
Encrypt(CmsRecipientCollection)	Encrypts the contents of the CMS/PKCS#7 message for one or more recipients.
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)