How to process encrypted and signed PGP message in BC library ?

Message is encrypted by rsa and idea algorithm. I've got decrypted idea sesssion key. But i don't know how to decrypt this message (and what is the structure). Maybe somebody would post working code for that operation.

Here is another option.
I had the same problem with my Mac OSX System 10.8.4 after update cups from 1.6.2 to 1.6.3.
I have a MacBookPro with the same system version and copy the libcups.2.dylib file form /usr/lib/ then replace the error file in my other Mac.
1. Install cups 1.6.2 again
2. Replace the file libcups.2.dylib in /usr/lib/ directory with this one libcups.2.dylib
Note: I added the link if you dont have an other mac in the same version available.
This works for me.

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    Any one has any idea about Biztalk and PGP version 6.5.8 for encryption and signing?
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    JB

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    http://www.pgpi.org/products/pgp/versions/freeware/win32/6.5.8/
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    the issues faced..
    http://stackoverflow.com/questions/7193323/encrypt-with-bc-and-decrypt-with-pgp-6-5-8
    http://bouncy-castle.1462172.n4.nabble.com/ERROR-encrypted-session-key-is-bad-when-trying-to-decrypt-td1466221.html
    http://bouncy-castle.1462172.n4.nabble.com/Compatibility-Issue-with-PGP-6-5-8-td1467170.html
     People have manage to get it working with few changes to the PGP code (which you can get it here
    http://www.bouncycastle.org/csharp/index.html )
    This forum is not the right place to raise question about finding the Bouncy castle pgp dll version compactable with v6.5.8. try to post this question here
    http://bouncy-castle.1462172.n4.nabble.com/
    Once you have their dll compactable with v 6.5.8, then you can use it in BizTalk suggested by the links referenced by you.
    If this answers your question please mark it accordingly. If this post is helpful, please vote as helpful by clicking the upward arrow mark next to my reply.

  • Help required on Encryption and Signing.

    Hello All,
    Client:
    Client is having his own Private key and the public key of the Server.
    Server:
    Server is having his own Private key and the public keys of all the clients.
    When a client wants to send a document to the server with both encryption and signed,
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    with his own Private key.
    And then sends it to the server.
    When the server receives the signed object from the client, he has to verify the signature with
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    How can we verify the signature?
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    My question is,
    When the client sends signed object to server, does he sends anything else along with it?
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    In this case i am able to verify the document and since i will have the encrypted document
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    So is it must and should that i need to send the encrypted document everytime along with the signed object to the server.
    Thanks and have a nice time.

    I have two suggestions for you
    First read a good book about cryptography. Even using secure cryptographic algorithms is no guarantee that your solution is secure. Without thorough understanding of cryptography and security someone might break in due to some implementation mistake in your security mechanism. My recommendations: "Applied Cryptography" written by Bruce Schneier and "An Introduction to Cryptography (IntrotoCrypto.pdf)" by Phil Zimmermann, Network Associates. This PDF document can be downloaded as part of the free PGP product from http://www.pgp.com, http://www.pgpi.com or http://www.nai.com
    Second take a serious look at S/MIME. S/MIME allows information to be wrapped in signed and/or encrypted data blocks in a secure way. The S/MIME standard is around for a few years and has been thoroughly reviewed. Bouncycastle (www.bouncycastle.org) contains an library for creating and handling S/MIME data. Never invent your own formats when a standard is available. More information about S/MIME can be found at RSA labs (www.rsa.com or www.rsalabs.com).

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    Thanks.
    Victor Jabur.

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