Hello,
[EMAIL PROTECTED] wrote on 06/26/2008 01:56:33 PM:
> Well, I tried it like you guys said, but I keep getting an error from
> EVP_DecryptFinal_ex() (returns 0) and the resulting decrypted packet
that I got is not
> right. However, doing it like I said previously, that is reassemblng the
> If I send the message "Hello World" from my server to client
> and I capture the aforementioned packet, lets say, I treat it
> as two separate records and decrypt each record. I now have
> two decrypted records. Should I merge these now? If that were
> the case, are you implying that my inital m
The TLS layer can break the stream down to any unit that is convenient
for it. It could break a "Hello World." string down to "H", "e", "l",
"l", "o", " ", "W", "o", "r", "l", "d", "." and put each byte into a
separate record. Most will use some multiple of the block size so
that minimal padding
Well, I tried it like you guys said, but I keep getting an error from
EVP_DecryptFinal_ex() (returns 0) and the resulting decrypted packet that I
got is not right. However, doing it like I said previously, that is
reassemblng the packets and merging them into one and then passing it to the
above me
The Nagle algorithm will attempt to coalesce multiple write() calls
into a single TCP packet. Since TLS/SSL are a record format atop TCP,
you need to handle the recordss as independent of each other -- i.e.,
you need to process the first TLS record, and then use the results of
that processing to p
Hello,
[EMAIL PROTECTED] wrote on 06/25/2008 07:25:12 AM:
> Hi,
> I am using EVP_DecryptUpdate() and EVP_DecryptFinal_ex() to decrypt a
> SSL packet that I have captured. The cipher that I am using AES256 and
> I can read the application data in cleartext as a result. The problem
> comes if t
Hi,
I resolved this issue although I am still a little confused about the error
that I was getting previously. I am outlining the steps that I did before
when I had the error and what I did to overcome it, so that some kind soul
here can enlighten me as to why I got the error in the first place.
I am using the traffic obtained from s_server and s_client sample programs
and the keys that have been negotiated by both the programs to decrypt the
encrypted traffic between the two. That would mean that I am using TCP.
Also, I am running them under the CBC mode.
Vijay K.
On Wed, Jun 25, 2008 a
It's hard to approach this without knowing the mode of operation you
are running CBC, OFB, CTR? Also are you using UDP with varying packet
sizes?
Julian
On Jun 24, 2008, at 10:25 PM, Vijay Kotari wrote:
Hi,
I am using EVP_DecryptUpdate() and EVP_DecryptFinal_ex() to decrypt a
SSL packet th
Hi,
I am using EVP_DecryptUpdate() and EVP_DecryptFinal_ex() to decrypt a
SSL packet that I have captured. The cipher that I am using AES256 and
I can read the application data in cleartext as a result. The problem
comes if the application data size > 8, which I think has something to
do with me u
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