Hi,
I'm trying to set a specific cipher in the ('ECDHE-ECDSA-AES128-GCM-SHA256')
the cipher list using the API: set_cipher_list but im getting the following
error :
kjoshi@ubuntu64dev:~/openssl_playground$ python test_ex.py
-----------------------------------
connected ('192.168.152.132', 443)
Traceback (most recent call last):
File "test_ex.py", line 83, in <module>
main()
File "test_ex.py", line 65, in main
cont, initial_session, ssl_conn, tcp_conn = create_ssl_connection()
File "test_ex.py", line 25, in create_ssl_connection
cont.set_cipher_list('ECDHE+ECDSA+AES128+GCM+SHA256')
File "build/bdist.linux-x86_64/egg/OpenSSL/SSL.py", line 975, in
set_cipher_list
File "build/bdist.linux-x86_64/egg/OpenSSL/_util.py", line 67, in
openssl_assert
File "build/bdist.linux-x86_64/egg/OpenSSL/_util.py", line 54, in
exception_from_error_queue
OpenSSL.SSL.Error: [('SSL routines', 'SSL_CTX_set_cipher_list', 'no cipher
match')]
Below is the code that i have:
cont = Context(TLSv1_2_METHOD)
#cont.set_cipher_list('0xc00e')
#cont.set_cipher_list('ECDHE+ECDSA+AESGCM+SHA256')
#cont.set_cipher_list('ECDHE-ECDSA-AES128-GCM-SHA256')
cont.set_cipher_list('ECDHE+ECDSA+AES128+GCM+SHA256')
client_ssl = Connection(cont, client)
client_ssl.set_connect_state()
client_ssl.do_handshake()
session_ref = client_ssl.get_session()
As seen above i tried numerous combination of word separators (_,-,+) but
nothing seemed to have helped.
I would appreciate if someone could please let me know on the usage of
this.I'm sure there must be a way of sending a specific cipher.
I'm performing a test on my local apache server.
Thanks,
Karan.
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