Re: [libreoffice-users] Setting the hash for time stamping when create PDF
Hello Vesselin I apologize for my previous reply. Did not catch the caveat at the bottom of the page. *Notice*: The main limitation on OpenOffice 5 is that you can't change the hash used "SHA1" that really shouldn't be used for security related purposes like signing documents. There are external applications better for this purpose. Paul On 4/9/2017 5:49 PM, Vesselin Kolev wrote: Dear All, Since I cannot find a complete answer of my question neither in the LibreOffice Documentation nor on the Internet, I decided to forward it to this mailing list. Is there any way (even through external Java class) to specify the hash algorithm when requesting TSA based time stamp? At the present LibreOffice creates a time stamp request based on SHA1. But this hash algorithm is considered obsolete. Hence that automatically turns the time stamped PDF into insecure ones. Note that the same problem occurs with all signature produced by LibreOffice in general - no possibility to specify the parameters for creating the signature. Thank you very much in advance for your response! Best regards, Vesselin Kolev -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
Re: [libreoffice-users] Setting the hash for time stamping when create PDF
You may want to use a separate program to secure your document that meets the specification you want. See https://freetsa.org/guide/libreoffice-time-stamping.html Hope this helps Paul On 4/9/2017 5:49 PM, Vesselin Kolev wrote: Dear All, Since I cannot find a complete answer of my question neither in the LibreOffice Documentation nor on the Internet, I decided to forward it to this mailing list. Is there any way (even through external Java class) to specify the hash algorithm when requesting TSA based time stamp? At the present LibreOffice creates a time stamp request based on SHA1. But this hash algorithm is considered obsolete. Hence that automatically turns the time stamped PDF into insecure ones. Note that the same problem occurs with all signature produced by LibreOffice in general - no possibility to specify the parameters for creating the signature. Thank you very much in advance for your response! Best regards, Vesselin Kolev -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
[libreoffice-users] Setting the hash for time stamping when create PDF
Dear All, Since I cannot find a complete answer of my question neither in the LibreOffice Documentation nor on the Internet, I decided to forward it to this mailing list. Is there any way (even through external Java class) to specify the hash algorithm when requesting TSA based time stamp? At the present LibreOffice creates a time stamp request based on SHA1. But this hash algorithm is considered obsolete. Hence that automatically turns the time stamped PDF into insecure ones. Note that the same problem occurs with all signature produced by LibreOffice in general - no possibility to specify the parameters for creating the signature. Thank you very much in advance for your response! Best regards, Vesselin Kolev -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted