e7ab7e8738
Accounts corrupted by the pre-fix SetPassword hold argon2(username + password) tagged with an algorithm whose phrase rule omits the username. Nothing in the hash distinguishes that from a forgotten password, so the only detection is to retry with the other phrase on a failed verify -- which doubles the cost of every failed login, and failed logins are the credential-stuffing surface. Hence accountSecurity.repairMigratedPasswords, default false: an operator turns it on for a migration window and off again. Repaired accounts are force-rehashed because their stored parameters may already be current, in which case NeedsRehash would decline and the account would verify once and stay broken. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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| .. | ||
| AccountSecurity.cs | ||
| Argon2PasswordProtection.cs | ||
| HashAlgorithmPasswordProtection.cs | ||
| PBKDF2PasswordProtection.cs | ||