Solution : https://service.sap.com/sap/support/notes/899808 (SAP Service marketplace login required)
Key words :
unsupported keysize oralgorithm parameters, adobe document services, linux x64 reason, <jre_home>/lib/security, /dl/jcesdk/jcesdk-, private keydecryption error, downloading / installating jce, credential expiry date, credential file inside, credential file
Related Notes :
1294782 | Expiry date is missing for private key |
894009 | Adobe Document Services: Configuration Guide (SAP NW 7.0) |
682619 | Adobe document services: Configuration Guide (SAP NW '04) |