iText doesn't use StringPrep and unless you have very strange input strings
with directional codes and such, it should make no difference using it or not.
Paulo
________________________________________
From: Aashish Dev [[email protected]]
Sent: Wednesday, August 24, 2011 11:33 AM
To: Post all your questions about iText here
Subject: Re: [iText-questions] 256 bit AES algorithm pdf password decryption
..??
Waiting for your response , I am stuck in my project . Will you please
help me out of it..? In my project I want to process usernames and
passwords using SaslPrep profile of StringPrep . I have googled and
found that Libidn (library by GNU) has implemented SASLprep profile of
stringprep. Do you have any idea regarding this?
Can you give an example what will be output of string after being
processed using SASLPrepAlogorithm?
If you can help me out of it. I will be really grateful to you.
Thanks,
On Tue, Aug 23, 2011 at 9:51 AM, Aashish Dev <[email protected]> wrote:
> Hiiiiii leonard,
> Will you please give me an example of those
> RFC algorithm so that i can understand them properly. I have written a
> code following all the steps of those algorithms but the output is
> same as the input of those algorithms. So i want to check it out that
> am i on the right way or not.
> Thanks
> SamDev
>
>
>
> On Mon, Aug 22, 2011 at 8:54 PM, Leonard Rosenthol <[email protected]> wrote:
>> I would recommend reading those two IETF RFCs - they have all the details.
>>
>>
>> On 8/22/11 2:17 AM, "sam_dev" <[email protected]> wrote:
>>
>>>Hiii ,
>>> I need your help regarding pdf password
>>>decryption. I have done the decryption of 128 bit RC4 and 128 bit AES
>>>passowrd security but now I have to decrypt the 256 bit password security.
>>>As according to the ISO 32000:1 document, Algorithm 3.2a Computing an
>>>encryption key, I am not able to understand its first step:
>>>
>>>
>>>1. The password string is generated from Unicode input by processing the
>>>input string with the SASLprep
>>>(IETF RFC 4013) profile of stringprep (IETF RFC 3454), and then converting
>>>to a UTF-8 representation.
>>>
>>>
>>>In this i am not able to understand anything about SASLprep profile of
>>>stringprep. If anyone can please explain me something about it. I will be
>>>really grateful to him/her.
>>> Thanks
>>>DevSam
>>>
>>>--
>>>View this message in context:
>>>http://itext-general.2136553.n4.nabble.com/256-bit-AES-algorithm-pdf-passw
>>>ord-decryption-tp3759415p3759415.html
>>>Sent from the iText - General mailing list archive at Nabble.com.
>>>
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