Hello,
I want to encrypt a file with its filename.
I can encrypt the file itself using the frame libraries.
How can I now best hide the filename and extension?
Within the file, ... ?
I must be able to retrieve the filename after decrypting.
The original files have random filenames and extensions.
example:
original file: username.sec
encrypted file with orig filename: username.sec
encrypted file with encrypted filename: mydate.dat
After encryption I must have username.sec again.
TIA
3  1697 
* "dick" <di**@nospam.co m> scripsit: I want to encrypt a file with its filename.
I can encrypt the file itself using the frame libraries.
How can I now best hide the filename and extension?
Within the file, ... ?
I must be able to retrieve the filename after decrypting.
The original files have random filenames and extensions.
example:
original file: username.sec
encrypted file with orig filename: username.sec
encrypted file with encrypted filename: mydate.dat
After encryption I must have username.sec again.
This would make encryption useless. The key used for
encrtyption/decryption is the most important part and storing it in a
format that can be easily read doesn't make much sense.
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Hello,
I don't mean storing the key, but the actual filename.
When the file is named "user.jpg", I want it saved as Enc1.dat or something
like that.
Later I must be able to retrieve the original filename from the encrypted
file, for restoring to the original file.
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:2j******** *****@uni-berlin.de... * "dick" <di**@nospam.co m> scripsit: I want to encrypt a file with its filename.
I can encrypt the file itself using the frame libraries.
How can I now best hide the filename and extension?
Within the file, ... ?
I must be able to retrieve the filename after decrypting.
The original files have random filenames and extensions.
example:
original file: username.sec
encrypted file with orig filename: username.sec
encrypted file with encrypted filename: mydate.dat
After encryption I must have username.sec again.
This would make encryption useless. The key used for
encrtyption/decryption is the most important part and storing it in a
format that can be easily read doesn't make much sense.
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
* "dick" <di**@nospam.co m> scripsit: I don't mean storing the key, but the actual filename.
OK, I misread your question, I thought you are using the filename as
encryption key. You can, for example, add sort of "header" to your file
that contains the file name. A very simple approach would be to store
the filename followed by a certain sequence of characters at the
beginning of the file. Then you will have to extract this data and pass
the rest of the file to your decryption routine.
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/> This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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Hello,
I want to encrypt a file with its filename.
I can encrypt the file itself using the frame libraries.
How can I now best hide the filename and extension?
Within the file, ... ?
I must be able to retrieve the filename after decrypting.
The original files have random filenames and extensions.
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