Portfolio Signature Status indicators: 10.1 implements a portfolio status indicator called a Signature Badge. This behavior is designed to support Acrobat’s long term validation feature and allows validating a signature with embedded responses that were valid at signing time. In this case, embedded responses without nextUpdate are always used for signature validation provided that they pass first test. If you need a relaxed security environment (for example, when the responder is caching OCSP responses), bIgnoreNextUpdate can be set to 1 to ignore the last test.
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When nextUpdate is not present and the validation time is less than the thisUpdate time or the producedAt time (whichever is greater) plus the value of maxClockSkew.When nextUpdate is present and the validation time is less than the nextUpdate time plus the value of maxClockSkew.
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Some of these certificates have relatively open KU and EKU configurations, and these have automatically been displayed back to the user within Adobe Reader and Acrobat as potential credentials for digitally signing PDF documents. Recently, certificate usage has become more popular in enterprise settings where certificate-based authentication is used to access corporate networks in a variety of ways. Therefore, Adobe has always had to make certain assumptions regarding a Certificate Authority’s intention for the usage of an issued certificate. RFC 5280, which started as RFC 2459 in 1999, did not include “Document Protection” as a potential EKU.
Invalid certificates no longer appear in the certificate drop down list in the Sign Document dialog.Ĭertificate KU and EKU extension requirements ¶ Valid KU Extensions Existing credentials (certificates) that do not adhere to the requirements in the following table may no longer be used for signing with Acrobat or Reader.Acrobat products better conform to RFC 5280 (Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile).The recent expansion of digital certificate usage has prompted Adobe to change the processing of Key Usage (KU) and Extended Key Usage (EKU) certificate extensions when performing digital signature creation in Acrobat products.