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hoccer / scrum

General software management
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persist old groupKeys and add keyIds for the symmetric groupKey #71

Open kristinew opened 10 years ago

kristinew commented 10 years ago

problem: for the encryption of group communication one shared AES group-key is used. if a group member misses for some reason the update notification of this key (when it was changed) it cannot participate communicating anymore as the key it uses is deprecated and not known anymore.

solution: persist the old groupKeys. Pavel already had a sample signature of updateGroupKey().

monolar commented 10 years ago

state unknown. requires a chat with pavel.