Description

leskiger

opened on Dec 5, 2011

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Hello,
I ran head-first into this issue this morning when migrating user data from an app that used bcrypt 2.1.4 to an app that uses bcrypt 3.0.1. It appears the old salts are 20 characters long while the salts generated by 3.0.1 are 29 characters. I'm not sure if there are other differences in format as well. I saw in the changelog that version 3.0.0 moved to a different underlying implementation and I wonder if that's the source issue?

At any rate, I can't seem to find any documentation for migrating salts to the current version. Any assistance would be greatly appreciated.

Thanks
Les

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1. emiltin commented on Mar 30, 2012

   

   emiltin

   on Mar 30, 2012

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   same problem here, but i suspect there will no way to migrate salts to the new format? if this is true it means all users have to reset their passwords?
2. emiltin commented on Mar 30, 2012

   

   emiltin

   on Mar 30, 2012

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   is there a way to just keep using the old salts?
3. tmm1 commented on Mar 31, 2013

   

   tmm1

   on Mar 31, 2013

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   Did you find a solution to this?
4. micwoj92 commented on May 26, 2024

   

   micwoj92

   on May 26, 2024

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   Hello, is this issue still relevant? 3.0.0 released 12 years ago. I doubt solution for this migration problem with come if It wasn't solved in 10+ years.

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