Michael Bell wrote:

>> When you mention a self signed certificate, what should be the authority
>> that signs the certificate ?
>  
> The certificate itself, therefore it is called self-signed. If you use
> SCEP then your client generates a selfsigned cert to sign it's PKCS#7
> container and the SCEP server uses this certificate to encrypt the ansers.
>
well, it uses the public key from the netscreen, send in a selfsigned
cert - but i think this isn't our problem actually ;(

> The certificate which is used with the SCEP interface must be the SCEP
> certificate (the most installation instructions call this certificate
> the "RA certificate").
>
right - i don't know if you may be able to set somewhere at netscreen
something like: i'm talking to a ca or an ra (like cisco calls it, if
you communicate directly with the ca or with an intermediary interface,
the ra)

>> Here is a more complete log message from the netscreen: 
> lib=33     --> ERR_LIB_PKCS7
> func=109   --> PKCS7_F_PKCS7_SET_CONTENT
> reason=111 --> PKCS7_R_UNSUPPORTED_CIPHER_TYPE
> 
> This means that the OpenSSL on the netscreen box cannot decrypt the
> message because it does not know the used cipher. We use 3DES by
> default. Cisco's testequipment cannot handle strong ciphers by default.
> Perhaps NetScreen has the same problem (our testequipment had no such
> problems).
>
but the cipher is described in the standard, it should be supported,
this is strange...

what key sizes are used? for the ca/ra keys?
cisco can only work with up to 2048, maybe netscreen has a similar
problem... but since it could send the request - i'm not sure about here...

> P.S. you can find pk7_doit.c in the OpenSSL source code
> (crypto/pkcs7/pk7_doit.c).

but it may be difficult to fix it on the netscreen - or? ;)
if there would be a problem...


greetings
dalini


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