Implement DTLS support about coapthon HOT 14 CLOSED

Hi,
It is in our TODO list, and I hope we will provide DTLS support in few
months.

2015-04-23 19:57 GMT+02:00 Evan Meagher [email protected]:

Is there a likely timeframe for implementing DTLS support?

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#14.

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When would provide DTLS support?

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Is DTLS going to happen anytime soon?

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Hi Giacomo, I'm also interested in DTLS support - would really appreciate an update on this

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Hi @Tanganelli ,

Update on DTLS support would be much appreciated !

Thanks,
Venkat

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Hi all,
I know that everybody would like DTLS. However it is a real long work in my opinion, thus I would really appreciate if someone could help me on this.

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This Repository for DTLS seems promising if this needs to be done @Tanganelli

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Hi,
I am trying to use this library. Does it support DTLS now ??

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Now it should support DTLS, however I still have to evaluate it.

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Could you please help to provide example script for DTLS ? I am able to send coap from my Pi3 to node.js coap server via Python Shell. I used coapclient.py as I need client side only.

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Maybe you should have a look at test_secure.py which is all about examples on using DTLS with CoAPthon, especially function test_ok_with_handshake_on_connect() and try modifying "your version" of coapclient.py to meet your needs. Basically it is only creating a DTLS socket and giving it to HelperClient() on creation.

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Thank you for your response.

I am getting following error while trying to execute test_secure.py. I have already installed pip install Dtls though. Please help to resolve this.

Note: Looks like, pyDTLS that you gave link installed libssl.1.0.0 which does not have "DTLS_server_method".
May be it is required to install libssl.1.0.2 from pyDtls itself. How to do this ?

Traceback (most recent call last):
File "test_secure.py", line 23, in
from dtls.wrapper import wrap_server, wrap_client
File "/usr/local/lib/python2.7/dist-packages/dtls/init.py", line 63, in
from patch import do_patch
File "/usr/local/lib/python2.7/dist-packages/dtls/patch.py", line 44, in
from sslconnection import SSLConnection, PROTOCOL_DTLS, PROTOCOL_DTLSv1, PROTOCOL_DTLSv1_2
File "/usr/local/lib/python2.7/dist-packages/dtls/sslconnection.py", line 60, in
from x509 import _X509, decode_cert
File "/usr/local/lib/python2.7/dist-packages/dtls/x509.py", line 34, in
from openssl import *
File "/usr/local/lib/python2.7/dist-packages/dtls/openssl.py", line 811, in
((c_char_p, "ret"), (c_int, "nid")), True, None),
File "/usr/local/lib/python2.7/dist-packages/dtls/openssl.py", line 642, in
map(lambda x: _make_function(*x), (
File "/usr/local/lib/python2.7/dist-packages/dtls/openssl.py", line 562, in _make_function
for i in args[1:]))
AttributeError: /usr/lib/arm-linux-gnueabihf/libssl.so.1.0.0: undefined symbol: DTLS_server_method

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How to install Openssl1.0.2 version in Debian (Raspberry Pi3) OS ?
It just installs OpenSSL1.0.1 automatically. I require version later than this i.e. 1.0.2* which supports DTLS.

I installed openssl1.0.2g from some site but it does not link lib dynamically as I could not see 'libssl.1.0.0' when I run this command '$ ldd /usr/bin/openssl'

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Hi, take a look to: https://raspberrypi.stackexchange.com/questions/66782/how-to-install-openssl-1-0-2-on-raspberry-pi3/67045

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