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I know that a text file contains only character codes.And knowing that i am claiming that i can hide data in the text file without replacing/changing/distorting any of the readable letters.
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Pallab_GT wrote: i am claiming that i can hide data in the text file without replacing/changing/distorting any of the readable letters
Then your claim is obviously false. Common sense dictates that data cannot be hidden in a file without requiring the file to be modified. If the file is modified, a diff tool will pick up the changes. If you still believe your claim is true, you are more deluded than I first thought. If you want to perform miracles, maybe you should consider changing careers and become a magician instead of a software developer.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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You are missing one point again and again...i am insisting upon the fact that i am not going to change/replace/distort any of the READBLE CHARACTERS.
Before u pass comment u should know that it is not necessary that you will know each and every trick of software development.There might be things beyond ur knowing.One more thing...No body in this world knows everything.
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Pallab_GT wrote: i am not going to change/replace/distort any of the READBLE CHARACTERS
All characters in a text file are readable. That's the whole point; data is stored in text files so it can be read by humans as well as computers. Have a look at the ASCII table[^]. Notice anything? That's right, all the characters are human-readable. Now ask yourself this: if all ASCII characters are readable, what changes can your algorithm make that won't be easily noticed?
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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Sir,my knowledge of software development is very limted.I am a novice in comparison with u.I know u know a lot more than me.
Can you plse tell me will it be something new if i can do what i am claiming to do?
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Pallab_GT wrote: Can you plse tell me will it be something new if i can do what i am claiming to do?
Not only will it be new, it will be a miracle 
Haven't you learned anything from this discussion? You want to hide data in a text file without making noticeable changes. I have demonstrated to you that any change you make to the file is noticeable. Therefore your objective is impossible.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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Well Sir,if you comapare the text files(prior and post hiding data versions) bit by bit...there will be obviously some chages.But that change will have no impact whatsoever in any of the readable/printable letters of the file.Not even a single readable/printable letter will be changed/replaced or distorted.Plse note my emphasise on readable/printable letters.There will be some changes in the file in binary level.But,i say again that change in binary level will have no impact whatsoever in the readable/printable letters of the text file,the readable/printable letters will remain absolutely the same as they were before hiding the data.And the size of the file will also remain absolutely unchanged.The size will not change even by a single byte.
Will you still consider it a miracle?
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What do yo mean with. The file will change on a binary level.?
And how wouldn't that have an impact on the readable Text portion of the file?
codito ergo sum
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Sir...can i ask you something?
If a character is not readable/invisible in MS-WORD/WORDPAD/NOTEPAD using all the english (cause i have tried it only using english fonts) font,will you consider that character readable/printable?
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Pallab_GT wrote: If a character is not readable/invisible in MS-WORD/WORDPAD/NOTEPAD using all the english (cause i have tried it only using english fonts) font,will you consider that character readable/printable?
what he is saying is that he, or I, or anyone desiring to see unprintable characters can look at them at a moments notice anytime we choose to. All characters, all ASCII codes from 0 to 255 are readable to a person who knows what they are doing. You may change the space to a hex 00 or higher order hex, but if I know what I am doing I will see it. More to the point "diff" works at both the character and binary level, so it will see that a change has been made and highlight every single change.
I miss out on all the fun discussions....  I missed this until now....
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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Sir,if u check other data hiding softwares i think you will the difference between my technic and the conventional technics that r in use.
The whole point is obscuring the data in a text file so that even if the file is intercepted during transfering the file over a network,it should not be noticeable easily that some data is hidden inside the file.
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Pallab_GT wrote: Sir,if u check other data hiding softwares i think you will the difference between my technic and the conventional technics that r in use.
The whole point is obscuring the data in a text file so that even if the file is intercepted during transfering the file over a network,it should not be noticeable easily that some data is hidden inside the file.
I am fully aware of the other programs, and as I understand the issue at hand, you are misleading yourself. If you change any white space to a character other than the original white space, you are instantly obvious about the change. You may not see it in notepad, but upon review of the text, it is immediately obvious. If you qualify your algorithm as hiding only from a computer illiterate, I would understand that it would work perfectly, so would many messages. But upon any change to a so-called "non-printable character" can be and is very visible to most of us here.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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El Corazon wrote: I miss out on all the fun discussions.... I missed this until now....
I think this is the first time I've actually spent in this forum .. I've really missed out on some crackpot discussions.
Sounds like someones got the wrong handle on steganography.
I'm largely language agnostic
After a while they all bug me 
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This is the longest discussion about nothing that I can recall.
I'm sure some punctuation in the above would help, but in the spirit of the thread..
Peter
"Until the invention of the computer, the machine gun was the device that enabled humans to make the most mistakes in the smallest amount of time."
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I can't see who you are asking, but if you are asking me what my point was, I would summarise this thread as being about a simple data obscuration technique that may be useful for your purpose. As it is easily detected it doesn't appear to be of any great general interest.
You ask in your first post:
Pallab_GT wrote: Guys can you plse tell me if this techniq has already been implemented the way i have done it
The answer to this is that it has almost certainly been done somewhere by someone, but really - who cares? Is it a commonly known/used technique - no.
I suspect that you are asking this question thinking that you have invented something (possibly of value). Whilst I encourage you to continue to try to develop new and interesting ideas, this one is no world beater. Unless you have the killer application in mind, use it to impress your friends by hiding data in text files and move on.
Peter
"Until the invention of the computer, the machine gun was the device that enabled humans to make the most mistakes in the smallest amount of time."
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And what are the UNREADABLE CHARACTERS of a text file?
I have to admit I know only a few tricks of software development  , but I'm striving to learn
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Sir,my knowledge of software development is very limited and you know a lot more than me.
I will definitely share my idea...tell me...will it be something new if i can do what i claim?
Aspects of my idea-
1.All readable/printable letters of the text file remains absolutely unchanged
2.The size of the file does not change even by a single byte after hiding the data.
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all the bytes between the logical end-of-file and the physical end-of-file
is unreadable to the normal application associated with the file type.
It can range up to an entire disk cluster (that is several sectors) without
being noticed.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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OK, now put your text file on a floppy or perhaps transfer file content on a network.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Tell me will it be something new if i can prove what i am claiming?
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Pallab_GT wrote: Tell me will it be something new if i can prove what i am claiming?
Do you need my approval?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Sir,My knowledge is very limited in compared to you.So i want to know if i can do what i am claiming...will it be something new?
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Why don't you just tell that this would be indeed a first application and algorithm that would be capable of data hiding in the way he claims it to do?
codito ergo sum
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Well Sir,if you comapare the text files(prior and post hiding data versions) bit by bit...there will be obviously some chages.But that change will have no impact whatsoever in any of the readable/printable letters of the file.Not even a single readable/printable letter will be changed/replaced or distorted.Plse note my emphasise on readable/printable letters.There will be some changes in the file in binary level.But,i say again that change in binary level will have no impact whatsoever in the readable/printable letters of the text file,the readable/printable letters will remain absolutely the same as they were before hiding the data.And the size of the file will also remain absolutely unchanged.The size will not change even by a single byte.
Considering the above...do u still think its impossible?
Sir,does it really matter if somebody tells me something because of my persistance?The question is if i can honour what i am saying?
I know very little about software development and i sincerely consider you people far more learned than me.That why i am just asking u people if this techniq has already been implemented the way i am claiming it.
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