Android Question [B4A] Invalid salt revision error using BCrypt

toby said:

you should provide a sample project that can be used to reproduce the problem

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Sub Process_Globals
    Private Bcrypt As BCrypt
End Sub

Sub Service_Create
    Bcrypt.Initialize("Bcrypt")
End Sub

Sub UserLogin
    If Bcrypt.checkpw(PasswordFromInput, PasswordFromDatabase) = True Then 'I got the error from this line
        'Logic here
    Else
        ...
End Sub

Warning
The salt option is deprecated. It is now preferred to simply use the salt that is generated by default. As of PHP 8.0.0, an explicitly given salt is ignored.

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DonManfred said:

Upload a small project showing the problem.
Hard to give any answer without knowing what code xou are using.

Are you setting a salt when generating the hash?
If so then please note

PHP: password_hash - Manual

Creates a password hash

www.php.net

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$hashed = password_hash($password, PASSWORD_DEFAULT);
// then $hashed goes to the database

Spavlyuk said:

There's an open issue since 2017: https://github.com/djmdjm/jBCrypt/issues/2
Last commit is from 2013. Probably best to use a different library.

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