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

[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
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> 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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>