Excuse me but you didn't answer me about the format that the OpenSSL
accepts it to decrypt with RSA?
Thank you
-Bdr
Dr. Stephen Henson wrote:
On Mon, Dec 15, 2003, Mohamad Badra wrote:
Hello again,
In fact, I tried the base64 command (base64 -e input file) on the
hexadecimal file.
a)Firstly, the file's length increases from 256 to 349 bytes. Is it normal?
b)Secondly, the base64 takes the hexa and give me base64 format. What I
need is the exact format (I think it is the pkcs1 format but i don't
know how I can have it) of the encrypted file to decrypt it using RSA key.
To summarize, I have an encrypted file in hexadecimal format, and I have
to decrypt it using RSA algorithm.
Thank you in advance.
Err before you said:
I have the encrypted premastersecret coding in Base64. Must i translate
it to any specific format before decrypt it using the server's private
key?
Is it in hex format (a bunch of hex digits) or base64 (printable ASCII)? From
you saying its 256 bytes (128 * 2) I'd say hex.
If its base64 you need the -d (decode) option not -e (encode). If its hex then
the normal OpenSSL utilities wont convert it. You can write a short program to
convert or use the Unix utility 'xxd'.
Steve.
--
Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage
OpenSSL project core developer and freelance consultant.
Funding needed! Details on homepage.
Homepage: http://www.drh-consultancy.demon.co.uk
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