PDFlib PLOP DS 5.2

Supporta lo schema di codifica EMSA-PSS per le firme RSA.
March 06, 2017 - 15:30
Nuova versione


Several enhancements for digital signatures and certificate security including the following:

  • Supports EMSA-PSS encoding scheme for RSA signatures. (EMSA-PSS = Encoding Method for Signatures Appendix, Probabilistic Signature Scheme).
  • Supports OAEP for RSA certificate security. (OAEP = Optimal Asymmetric Encryption Padding).
  • Reject input documents with certification signatures and permissions=nochanges unless the "sacrifice" option has been supplied to avoid breaking existing certification signature.
  • No longer requires "conformance=extended" for NIST-15 elliptic curves other than P-256/P-384/P-521 since these are supposed to be supported in Acrobat.
  • Increased the default value of "timestampsize" to accommodate changes implemented in the configuration of a commonly used TSA.


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