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https://github.com/Cockatrice/Cockatrice.git
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1baf286738
Challenge-response authentication: the client derives a scrypt verifier (RFC 7914, EVP_PBE_scrypt, N=32768, r=8, p=1) and authenticates with HMAC-SHA256(key, nonce), so neither the password nor its hash is transmitted. The stored format becomes "$scrypt$<n>$<r>$<p>$<salt>$<verifier>" and Response_PasswordSalt now carries the cost parameters. Strict servers only accept scrypt verifiers; legacy accounts are migrated after a successful login. Fix #344 for challenge-response servers: a saved profile stores the derived verifier under the password key instead of the plaintext password. The connect dialog loads it without revealing it, autoconnect passes it through, the change-password dialog no longer prefills the old password field with it, and the client only persists the verifier when "Save password" is checked. Took 3 minutes Took 1 minute Took 10 seconds Took 7 minutes
17 lines
495 B
Protocol Buffer
17 lines
495 B
Protocol Buffer
syntax = "proto2";
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import "session_event.proto";
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message Event_ServerIdentification {
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extend SessionEvent {
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optional Event_ServerIdentification ext = 500;
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}
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enum ServerOptions {
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NoOptions = 0;
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SupportsPasswordHash = 1;
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SupportsChallengeResponseAuth = 2;
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}
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optional string server_name = 1;
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optional string server_version = 2;
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optional uint32 protocol_version = 3;
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optional ServerOptions server_options = 4 [default = NoOptions];
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}
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