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Problem encrypting with openssl, decrypting with bouncy castle

raul marzo

Joined: Apr 09, 2007
Posts: 21

I'm trying to extract the certificate and "rsa private key" from a pem file created with openssl, in a midlet application(J2ME). I've been able to extract the cert info using Bouncy castle ASN1 class, but I cannot get the private key data. I have the following code to extract the rsa private key and decrypt it, however, it throws an exception when I init the cipher.

The private key in the pem file I want to decrypt is something like this:

Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,F83023B53795F517


Could anybody told me what's wrong with the code, or tell me any alternative?
If I encrypt the private key with other algorithm, like AES, would be easier to decrypt the private key?

Thanks in advance.

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Nicholas Jordan
Ranch Hand

Joined: Sep 17, 2006
Posts: 1282
Where's the stack trace ?

Also, I would shy the mind of any thought of seeking easier while doing crypto. I like to think of Cryptix as being Crypt Ticks ...tick.tock...tick.tock... a Hollywood character waiting for you to screw down the the lid on your own coffin.

"The differential equations that describe dynamic interactions of power generators are similar to that of the gravitational interplay among celestial bodies, which is chaotic in nature."
greg stark
Ranch Hand

Joined: Aug 10, 2006
Posts: 220
use the org.bouncycastle.openssl.PEMReader class. The result will have exactly one object, which you can read in and cast to KeyPair, e.g.

Nice to meet you.
I agree. Here's the link: http://aspose.com/file-tools
subject: Problem encrypting with openssl, decrypting with bouncy castle
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