stated digest algorithm preferences must include at least one member of the SHA-2 family at a higher priority than both MD5 and SHA1.self-signatures should not use MD5 exclusively.primary keys should be RSA, ideally 3072 bits.Only use your primary key for certification (and possibly signing).Set a calendar event to remind you about your expiration date.Use an expiration date less than two years.Check key fingerprints before importing.Do not blindly trust keys from keyservers.Refresh your keys slowly and one at a time. ![]() ![]() ![]() Ensure that all keys are refreshed through the keyserver you have selected.Use the sks keyserver pool, instead of one specific server, with secure connections.Selecting a keyserver and configuring your machine to refresh your keyring.Use free software, and keep it updated.
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