EnvelopedCms Class
Definition
Important
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Represents a CMS/PKCS#7 structure for enveloped data.
public ref class EnvelopedCms sealedpublic sealed class EnvelopedCmstype EnvelopedCms = classPublic NotInheritable Class EnvelopedCms- Inheritance
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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. |
| EnvelopedCms(SubjectIdentifierType, ContentInfo, AlgorithmIdentifier) |
Initializes a new instance of the EnvelopedCms class with specified a symmetric encryption algorithm, content information, and a subject identifier scheme when selecting recipients by UI. |
| EnvelopedCms(SubjectIdentifierType, ContentInfo) |
Initializes a new instance of the EnvelopedCms class with specified content information and a subject identifier scheme when selecting recipients by UI. |
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() |
Encrypts the contents of the CMS/PKCS#7 message after selecting recipient certificates via a UI popup. |
| 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) |
