On Wed, Apr 14, 2004, Carlos Roberto Zainos H wrote:
Hi !!
I have some problems because I want a RSA private key in DER form but
des-cbc codified. The source key is in PEM encoded form (password protected)
and I need something similar but in DER encoded form (also password
protected key). I have been tried with: openssl rsa -in mykey.pem -outform
DER -out mykey.key, to get a DER encoded form key, and after this: openssl
enc -des-cbc -in mykey.key -out mydeskey.key -pass stdin -e; it looks like
all finishes ok, but when I take a look to the output file, it looks like a
little bit strange because it begins with Salt_
Really I don't know what is happening ... for me will be wonderful if I will
do something like this from C routines.
The traditional encryption used by OpenSSL is at the PEM level and cannot be
applied to DER. An alternative is to use PKCS#8 format (see pkcs8 utility)
which encrypts at the DER level. However you need to use the PKCS8 functions
to encrypt and decrypt your key then.
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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