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Request for adding new ciphers

OpenSSL - User mailing list
Hi everyone,

Someone can help for adding the ciphersuite " ECDHE_ECDSA_WITH_AES_128_CCM " and "ECDHE_ECDSA_WITH_AES_256_CCM " in openssl?
I tried adding in the file tls1.h
    # define TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CCM            0x0300C0AC
    # define TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CCM            0x0300C0AD

And modifing the file  ssl_ciph.c the functions
    ssl_load_ciphers() ...
And modifing the file evp_cipher.c and sssl_locl.c
and finaly ssl_algs.c.

There are no way to make it works. It continue to give me  error: ssl3_get_client_hello:no shared cipher:s3_srvr.c:1420

thanks.



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Re: Request for adding new ciphers

Matt Caswell-2


On 15/03/17 18:03, Christian Adja via openssl-users wrote:

> Hi everyone,
>
> Someone can help for adding the ciphersuite "
> ECDHE_ECDSA_WITH_AES_128_CCM " and "ECDHE_ECDSA_WITH_AES_256_CCM " in
> openssl?
> I tried adding in the file tls1.h
>     # define TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CCM            0x0300C0AC
>     # define TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CCM            0x0300C0AD
>
> And modifing the file  ssl_ciph.c the functions
>     ssl_load_ciphers() ...
> And modifing the file evp_cipher.c and sssl_locl.c
> and finaly ssl_algs.c.
>
> There are no way to make it works. It continue to give me  error:
> ssl3_get_client_hello:no shared cipher:s3_srvr.c:1420


These ciphersuites already exist in OpenSSL (from version 1.1.0).

Matt

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