Class PKCS7Detached

PKCS7Detached class

Represents the PKCS#7 object that conform to the PKCS#7 specification in Internet RFC 2315, PKCS #7: Cryptographic Message Syntax, Version 1.5. The original signed message digest over the document’s byte range is incorporated as the normal PKCS#7 SignedData field. No data shall is encapsulated in the PKCS#7 SignedData field.

public sealed class PKCS7Detached : Signature


PKCS7Detached()Inititalizes new instance of the PKCS7Detached class.
PKCS7Detached(Stream)Initializes new instance of the PKCS7Detached class.
PKCS7Detached(Stream, string)Inititalizes new instance of the PKCS7Detached class.
PKCS7Detached(string, string)Inititalizes new instance of the PKCS7Detached class.


Authority { get; set; }The name of the person or authority signing the document.
ByteRange { get; }An array of pairs of integers (starting byte offset, length in bytes) that shall describe the exact byte range for the digest calculation.
ContactInfo { get; set; }Information provided by the signer to enable a recipient to contact the signer to verify the signature, e.g. a phone number.
CustomAppearance { get; set; }Gets/sets the custom appearance.
CustomSignHash { get; set; }The delegate for custom sign the document hash (Beta).
Date { get; set; }The time of signing.
Location { get; set; }The CPU host name or physical location of the signing.
OcspSettings { get; set; }Gets/sets ocsp settings.
Reason { get; set; }The reason for the signing, such as (I agree…).
ShowProperties { get; set; }Force to show/hide signature properties. In case ShowProperties is true signature field has predefined format of appearance (strings to represent): ——————————————- Digitally signed by {certificate subject} Date: {signature.Date} Reason: {signature.Reason} Location: {signature.Location} ——————————————- where {X} is placeholder for X value. Also signature can have image, in this case listed strings are placed over image. ShowProperties is true by default.
TimestampSettings { get; set; }Gets/sets timestamp settings.
UseLtv { get; set; }Gets/sets ltv validation flag.


Verify()Verify the document regarding this signature and return true if document is valid or otherwise false.

See Also