LTV standard has requirements to add verification information for signature 
embedded timestamp and OCSP responses.
Are there plans to add support for it to LtvVerification class?

If not, would you consider changing field visibility to protected for this 
entry:

    private Map<PdfName,ValidationData> validated = new 
HashMap<PdfName,ValidationData>();

 to enable adding such or similar functionality w/o completely rewriting 
LtvVerificationclass? Or does it break some common iText policy rules?

When i read iText code i notice that it is extremely hard (or impossible) to 
extend iText classes. I'm not sure if it is done on purpose or it just happens. 
:)


From Pades-LTV standard:

NOTE 1: For a document signature the bytes that are hashed are those of the 
signature's DER-encoded PKCS#7 (and
its derivatives) binary data object (base-16 decoded byte string in the 
Contents entry in the signature
dictionary). For the signatures of the CRL and OCSP response, it is the 
respective signature object
represented as a BER-encoded OCTET STRING encoded with primitive encoding. For 
a Time-stamp's
signature it is the bytes of the Time-stamp itself since the Time-stamp token 
is a signed data object.
 
-- 
Erik
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