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1/ now, i want make libcoap client connect to a coaps server, but it cannot find a coaps server 2/ so, i neened a coaps server with psk, who can give it to me?

I have implementation of CoAP (libcoap), and implementation of DTLS (tinyDTLS). I want make libcoap client connect to a coaps server

I will be grateful for the any advice.

user11095289
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2 Answers2

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You can use Eclipse Californium to start up your own DTLS based CoAP server. Take a look at the DTLS example in the source repository, that should get you started.

Alternatively, you can connect to the Eclipse Californium sandbox CoAP server at californium.eclipse.org:5684.

Here's how to do that using the openssl s_client tool:

openssl s_client -dtls1_2 -psk_identity password -psk 736573616D65 -connect californium.eclipse.org:5684
Kai Hudalla
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  • hi, thx. i want a free coaps server, not a server made by myself, i want to get a uri, such as coaps://californium.eclipse.org:5684 -u xxx -k xxx , if anyone have californium's psk name&passwd, it would be wonderful – user11095289 Feb 22 '19 at 02:01
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You can test coaps connection local like this

$ ./coap-server -A ::1 -k 1234 &
$ ./coap-client 'coaps://[::1]/' -k 1234 -u CoAP
chenamob
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