bugMIT/GNU Scheme - Bugs: bug #27230, Edwin's support for editing...

 
 

bug #27230: Edwin's support for editing Blowfish-encrypted files uses a weak key-derivation function

Submitter:  Taylor R. Campbell <riastradh>
Submitted:  Wed 12 Aug 2009 01:33:22 AM UTC
   
 
Category:  edwin Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect behavior
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open
Keywords: 
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Wed 12 Aug 2009 01:33:22 AM UTC, original submission:  

Edwin maps pass phrases into Blowfish keys by sending them through MD5.  Instead it should use a strong KDF such as bcrypt, scrypt, or at least one of the PBKDF2 family of KDFs.  PBKDF2 is a standard for KDFs, defined in PKCS#5; bcrypt and scrypt are stronger KDFs, but are not standardized.

 Taylor R. Campbell <riastradh>
Group Member

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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