• Registered: 2021-01-27
  • Posts: 1

Topic: example code for RSASSA-PKCS1-v_1.5

hello,
I am a newer for wolfssl. i need to use RSASSA-PKCS1-v_1.5, but i don't know what it is. Is there anyone can provide me the example code for RSASSA-PKCS1-v_1.5 ?

and example code for RSAES-PKCS1_v1.5 and RSAES-OAEP ?
and example for TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256  and TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ?

thank you so much!

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  • From: Mobile, AL
  • Registered: 2013-12-11
  • Posts: 352

Re: example code for RSASSA-PKCS1-v_1.5

Hi Jeremy,

Thanks for submitting this on Zendesk. I will copy the answer here also to help other users.

Here is a very straight forward RSA signing example:
https://github.com/wolfSSL/wolfssl-exam … pk/rsa-pss

And for the TLS examples, you can always use the client and server that come packaged in the main library:
https://github.com/wolfSSL/wolfssl/tree … les/client
https://github.com/wolfSSL/wolfssl/tree … les/server

The client can print the available ciphers using the option -e

./examples/client/client -e
wolfSSL Entering wolfSSL_Init
wolfSSL Entering wolfCrypt_Init
TLS13-AES128-GCM-SHA256:TLS13-AES256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305-OLD:ECDHE-ECDSA-CHACHA20-POLY1305-OLD:DHE-RSA-CHACHA20-POLY1305-OLD

You can specify a particular cipher suite using the option -l

./examples/client/client -l ECDHE-RSA-AES128-GCM-SHA256

For a simpler TLS example you can review:
https://github.com/wolfSSL/wolfssl-exam … ls-ecdhe.c

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