instance method

OpenSSL::SSL::SSLSocket#group

ssl.group => String or nil

static VALUE
ossl_ssl_get_group(VALUE self)
{
    SSL *ssl;
    const char *name;

    GetSSL(self, ssl);
    if (!(name = SSL_get0_group_name(ssl)))
        return Qnil;
    return rb_str_new_cstr(name);
}

Returns the name of the group that was used for the key agreement of the current TLS session establishment.

See also #finished_message #hostname= #export_keying_material #npn_protocol also in 4.1

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