Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function?

From	"Karl.Frank" <Karl.Frank@Freecx.co.uk>
Newsgroups	sci.crypt
Subject	Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function?
Date	2018-05-15 21:29 +0200
Organization	albasani.net
Message-ID	<pdfcfc$1jb$2@news.albasani.net> (permalink)
References	<pdf0kv$uom$1@news.albasani.net> <pdfb90$jlb$1@dont-email.me>

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On 15.05.18 21:09, wizzofozz wrote:
> On 15-5-2018 18:07, Karl.Frank wrote:
>> I've stuck with getting potential wrong results from a Java 7
>> implementation.
>>
>> If I call a test function like
>>
>> echo -n "Lsda[¥~§#€]" | java -jar pbkdf2_stdin.jar "Salt" 4096 16 sha-1
>>
>
> If I do
>
> wizzofozz@cuckoosnest:~$ echo -n 'Lsda[¥~§#.]' | hexdump -C
> 00000000  4c 73 64 61 5b a5 7e a7  23 2e 5d                 |Lsda[.~.#.]|
>
> Compare with:
>
>> I get
>>
>> Password   : 4c7364615bc2a57ec2a723e282ac5d
>
> You can see the interleaved c2's in your password bytes.
>
> Not sure what's happening, but it seems character encoding related (to
> UTF8). (http://www.fileformat.info/info/unicode/char/A5/index.htm)
> But you probably already figured that out.
> I would put more "byteArrToHexString" calls for debugging if I were you.
>
> Cheers
> Ozz
>

Just realised that your echo statement is missing the EUR symbol and
therefore your byte result is different than mine.

ist should read

echo -n 'Lsda[¥~§#<< EUR Symbol here >>]' | hexdump -C

and you'll get

00000000  4c 73 64 61 5b c2 a5 7e  c2 a7 23 e2 82 ac 5d 
|Lsda[..~..#...]|
0000000f



-- 
cHNiMUBACG0HAAAAAAAAAAAAAABIZVbDdKVM0w1kM9vxQHw+bkLxsY/Z0czY0uv8/Ks6WULxJVua
zjvpoYvtEwDVhP7RGTCBVlzZ+VBWPHg5rqmKWvtzsuVmMSDxAIS6Db6YhtzT+RStzoG9ForBcG8k
G97Q3Jml/aBun8Kyf+XOBHpl5gNW4YqhiM0=

Thread

Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 18:07 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 18:31 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Bruce Stephens <bruce.r.stephens@gmail.com> - 2018-05-15 19:46 +0100
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 20:52 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Rich <rich@example.invalid> - 2018-05-15 18:49 +0000
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 21:02 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? wizzofozz <oscxxxxxxxaas@gmail.com> - 2018-05-15 21:09 +0200
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? wizzofozz <oscxxxxxxxaas@gmail.com> - 2018-05-15 21:11 +0200
      Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 21:25 +0200
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 21:29 +0200
      Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? wizzofozz <oscxxxxxxxaas@gmail.com> - 2018-05-15 22:07 +0200
      Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Rich <rich@example.invalid> - 2018-05-15 20:38 +0000
        Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 22:57 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 21:42 +0200
  Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-15 23:37 +0200
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-05-16 15:58 +0200
    Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Robert Klemme <shortcutter@googlemail.com> - 2018-06-18 18:41 +0200
      Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-06-18 13:33 -0700
      Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-06-19 12:54 +0200
        Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Lothar Kimmeringer <news201705@kimmeringer.de> - 2018-06-19 22:18 +0200
          Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Robert Klemme <shortcutter@googlemail.com> - 2018-06-19 23:20 +0200
          Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-06-19 23:23 +0200
        Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? Robert Klemme <shortcutter@googlemail.com> - 2018-06-19 23:15 +0200
          Re: Why is Java 7 converting the Password toCharArray instead of Byte in it's PBKDF2 function? "Karl.Frank" <Karl.Frank@Freecx.co.uk> - 2018-06-20 00:03 +0200

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