The non-profit certificate authority Let's Encrypt, operated by the community and providing certificates free of charge to anyone who wants them, has announced the implementation of ARI (ACME Renewal Information) support in its infrastructure. This extension of the ACME protocol allows for the transmission of information to clients about the necessity of renewing certificates and recommending the optimal time for renewal. The ARI specification is undergoing standardization by the IETF (Internet Engineering Task Force), which is responsible for the development of internet protocols and architecture, and is currently in the draft review stage. <\/p>\n
Before ARI was implemented, the client determined the certificate renewal policy themselves, e.g., periodically running the renewal process through Cron or making decisions based on the certificate's lifespan analysis. This approach led to challenges when it became necessary to revoke certificates prematurely; for example, users had to be contacted via email and forced to perform a manual update. <\/p>\n
The ARI extension allows the client to specify the recommended certificate renewal time, detach from the 90-day certificate lifespan, and not worry about missing an unexpected certificate revocation. For instance, in the case of an early revocation through ARI, renewal could be initiated not after 90 days but after 60 days. Additionally, ARI enables effective load balancing on Let's Encrypt infrastructure when selecting the timing for renewal. servers<\/a> Let’s Encrypt, choosing time for renewal based on infrastructure load. GET https:\/\/example.com\/acme\/renewal-info\/ «suggestedWindow»: { «start»: «2023-03-27T00:00:00Z», «end»: «2023-03-29T00:00:00Z» } \u041d\u0435\u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0438\u0439 \u0446\u0435\u043d\u0442\u0440 Let’s Encrypt, \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e\u043c \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b \u0431\u0435\u0437\u0432\u043e\u0437\u043c\u0435\u0437\u0434\u043d\u043e \u0432\u0441\u0435\u043c \u0436\u0435\u043b\u0430\u044e\u0449\u0438\u043c, \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0432 \u0441\u0432\u043e\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 ARI (ACME Renewal Information), \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 ACME, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0442\u044c \u043a\u043b\u0438\u0435\u043d\u0442\u0443 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0438 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u0442\u044c \u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f. \u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f ARI \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u043f\u0440\u043e\u0446\u0435\u0441\u0441 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043e\u043c\u0438\u0442\u0435\u0442\u043e\u043c IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u043c\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 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Source: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"