DTLS-Examples | Examples for DTLS via SCTP and UDP using OpenSSL | Encryption library

by nplab C Version: Current License: BSD-3-Clause

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | DTLS-Examples Summary

DTLS-Examples is a C library typically used in Security, Encryption, Raspberry Pi applications. DTLS-Examples has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This repository contains examples for DTLS via SCTP and UDP. Each application in src can be used as client or server. Our examples are developed against the OpenSSL 1.1.x API.

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Quality

Security

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Support

DTLS-Examples has a low active ecosystem.

It has 82 star(s) with 31 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 7 have been closed. On average issues are closed in 19 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of DTLS-Examples is current.

Quality

DTLS-Examples has 0 bugs and 0 code smells.

Security

DTLS-Examples has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

DTLS-Examples code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

DTLS-Examples is licensed under the BSD-3-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

DTLS-Examples releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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DTLS-Examples Key Features

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DTLS-Examples Examples and Code Snippets

No Code Snippets are available at this moment for DTLS-Examples.

Community Discussions

Trending Discussions on DTLS-Examples

JITP cert not created with mbedTLS+ATECC608A (works with moquitto_pub)

Random lack of connection and message delay in DTLS with OpenSSL

QUESTION

JITP cert not created with mbedTLS+ATECC608A (works with moquitto_pub)

Asked 2021-Jan-19 at 16:41

I have the following setup:

ATECC608A
mbedTLS (tested with 2.16.6 and 2.16.9)
coreMQTT The certificate chain is the following: RootCA > SignerCA > DeviceCert. I've registered both RootCA and SignerCA as CAs in the AWS IoT Console

I setup the chain in mbedTLS with the following:

...

ANSWER

Answered 2021-Jan-19 at 16:41

Got it. I was retrieving the public key of my root certificate in the wrong slot in the ATECC (ouch). This was resulting in a slightly different signerCA to be generated by the atcacert_def_t and the template at runtime.

I missed it because all my tooling in Python was fetching the right slot while the C version was not kept perfectly in sync.

Source https://stackoverflow.com/questions/65735301

QUESTION

Random lack of connection and message delay in DTLS with OpenSSL

Asked 2021-Jan-12 at 08:27

Trying to write a server for DTLS that will currently just output the text that it receives. The working client is taken from https://github.com/stepheny/openssl-dtls-custom-bio and it sends and receives to its own server just fine.

However, when it sends to this server something strange is happening. Firstly the connection happens only sometimes, there seems to be no way to determine if the connection will start or not. Secondly, and that is even stranger the data is "delayed". One needs to send 6 messages for 1 message to arrive.

So this is the situation:

Start the server.
Start the client.
Hope for connection.
If connected type 5 messages in client to send to server, they are sent, but the server keeps having an error decoding them.
Once you send the 6th message you can note that the 1st message arrives on server.
Once you send the 7th, you will get the 2nd. Etc.

It should be noted that we are not talking about a time delay, there is no way to simply read 5 empty messages at the start of the server, the queue is empty. Only once the 6th message is sent is the queue populated with the 1st real message.

Code:

...

ANSWER

Answered 2021-Jan-12 at 08:27

In case somebody else will have a similar issue. The problem was that the wait between calling server's recv function was 1 second. In that time client thought that server has not responded and began doing weird things. Lowering the delay solved the problem.

Source https://stackoverflow.com/questions/65664358

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install DTLS-Examples

Before calling make in the src directory, it may be necessary to specify custom library and include paths. This is either done by modifying the Makefile or by providing the path as a command line argument. It is also possible to only build SCTP or UDP examples.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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