Re: [Javamail-crypto-devel] Fwd: Verify signature

[Didac <um...@gm...>]

Sorry, my english is not really good.

What I mean is that I only want to extract the certificates from the signed
message (from the smime.p7s body part). ¿How I can do this with
javamail-crypto?

Then I want to check if the certificate is valid for my CA (I have it on a
X509TrustManager).

2009/7/22 Didac <um...@gm...>

> I'm ussing java for verify the signature, so the cacerts are on
> $JAVA_HOME/lib/security/cacerts. I have the CA installed and I sing a
> message with a private key that is signed by this CA.
> It's easy to extrac the public key associated to a signed message
> (EncryptionUtils extractkeys method). Then, what I need is to check if this
> key is signed by my CA. With this I can check the validity of the signature.
>
> 2009/7/22 <geo...@fi...>
>
> You can attach the public key to the mail. It is quite simple. But for
>> checking against a CA, you would need the CA keys. They usually exists
>> within the OS but I have no idea where.
>>
>>
>>
>> Best Regards
>>
>> Phone Norway: 02367 abroad: +47 974 14 025
>> Fileflow Technologies AS
>> Ole Deviks vei 35, 0668 Oslo, Norway
>>
>> -------------------------------------
>>
>>
>>
>>
>>
>>
>>
>> On 21 Jul 2009, at 23:19, Didac wrote:
>>
>>  Hi everyone!
>>>
>>> I'm ussing javamail-crypto with S/MIME provider based off of the
>>> BouncyCastle. I sends mail signed and I can verify the sign correctly if I
>>> have it.
>>>
>>> But the default way to verify a signatura (Outlook does it) is sending
>>> the public key or the certificate with the signed message. So, the receiver
>>> can download the certificate and veritfy the signature with the public key
>>> on the certificate. It's possible to do with javamail-crypto?
>>>
>>> Another thing that can by done is to verify if the message is signed with
>>> a private key signed by a CA. It's possible? (Thunderbird does it)
>>>
>>> Regards
>>>
>>>
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>>
>>
>