AddSignatureFieldSeedCertificate

Security and signatures

Description

Adds one DER-encoded X.509 certificate to the exact signer-certificate constraint in an unsigned signature field

Function TPDFlib.AddSignatureFieldSeedCertificate(Index: Integer; Const CertificateDER: AnsiString): Integer;

Function PDFlib::AddSignatureFieldSeedCertificate(Index As Long, CertificateDER As Variant) As Long

int DLAddSignatureFieldSeedCertificate(int InstanceID, int Index, const char* CertificateDER, int CertificateLength);

Index	One-based form-field index identifying an unsigned signature field that already has a seed-value dictionary
CertificateDER	One complete DER-encoded X.509 certificate

1	The certificate was added or was already present
0	The field, seed-value dictionary, DER value, or aggregate size was invalid

Certificates are compared by their complete DER encoding and byte-identical duplicates are stored once

Signing succeeds only when the selected identity certificate exactly matches one member of the field seed-value certificate array