CompletePadesRemoteSignature - TPdf - PDFium Delphi Component

Componente: TPdf · Unidade: PDFium

Conclui uma sessão preparada de assinatura remota PAdES sem exigir uma instância ativa de TPdf

Syntax

class function CompletePadesRemoteSignature(Prepared, Dest: TStream; const Request: TPadesRemoteSigningRequest; const CmsDer: TBytes): Boolean; static;

Description

Recomputes the complete prepared-PDF fingerprint and detached document digest, verifies the saved ByteRange and unused placeholder, validates the returned CMS shape and message-digest binding, and fills the reserved hexadecimal slot without changing any signed byte

All request and CMS checks finish before the destination stream is cleared or written

Parameters

Prepared	Exact placeholder PDF produced by PreparePadesRemoteSignature
Dest	Destination stream for the completed signed PDF
Request	Original or deserialised remote-signing request
CmsDer	Complete detached CMS SignedData DER returned by the remote signer

Remarks

The method rejects any modified prepared PDF, changed request coordinates, non-zero placeholder, oversized CMS value, trailing DER value, unsupported SignedData shape, or message-digest mismatch
The CMS must contain exactly one signer, detached content, content-type, message-digest, and a SHA-256 signing-certificate-v2 attribute
Structural and digest binding checks do not establish certificate trust or prove the returned signature value cryptographically on every platform
Use a trusted remote signer and call ValidatePades where cryptographic validation support is available
Applications that require one-time consumption should record the prepared PDF fingerprint after successful completion

Example

var
  Prepared, Output: TFileStream;
  Request: TPadesRemoteSigningRequest;
  CmsDer: TBytes;
begin
  Request := TPdf.LoadPadesRemoteSigningRequest(RequestStream);
  TPdf.CompletePadesRemoteSignature(Prepared, Output, Request, CmsDer);
end;

Método CompletePadesRemoteSignature