59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
# Test creating an SSL connection with specified ciphers.
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try:
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import os
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import socket
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import ssl
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except ImportError:
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print("SKIP")
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raise SystemExit
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PORT = 8000
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# These are test certificates. See tests/README.md for details.
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cert = cafile = "rsa_cert.der"
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key = "rsa_key.der"
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try:
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os.stat(cafile)
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os.stat(key)
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except OSError:
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print("SKIP")
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raise SystemExit
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# Server
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def instance0():
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multitest.globals(IP=multitest.get_network_ip())
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s = socket.socket()
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
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s.listen(1)
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multitest.next()
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s2, _ = s.accept()
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server_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
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server_ctx.load_cert_chain(cert, key)
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s2 = server_ctx.wrap_socket(s2, server_side=True)
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assert isinstance(s2.cipher(), tuple)
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print(s2.read(16))
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s2.write(b"server to client")
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s2.close()
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s.close()
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# Client
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def instance1():
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multitest.next()
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s = socket.socket()
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s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
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client_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
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ciphers = client_ctx.get_ciphers()
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assert "TLS-RSA-WITH-AES-256-CBC-SHA256" in ciphers
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client_ctx.set_ciphers(["TLS-RSA-WITH-AES-256-CBC-SHA256"])
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client_ctx.verify_mode = ssl.CERT_REQUIRED
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client_ctx.load_verify_locations(cafile=cafile)
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s = client_ctx.wrap_socket(s, server_hostname="micropython.local")
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s.write(b"client to server")
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print(s.read(16))
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s.close()
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