问题
I am using python ssl library which is built on openssl. I use Ubuntu which has OpenSSL 1.1.0g.
In OpenSSL 1.1.0g the following cipher DES-CBC3-SHA is disabled by default. I need to configure my client with this cipher enabled. I need it for testing. In SSL context, I found some ways that allow enabling some disabled options by default. For example, in this documentation the following negate SSL 3.0 which is disabled by default:
ctx = ssl.create_default_context(Purpose.CLIENT_AUTH)
ctx.options &= ~ssl.OP_NO_SSLv3
How can I enable the cipher I need? I used:
ctx.set_cipher(myciphers)
Where myciphers contains list of ciphers. But this did not help. Because the cipher is disabled by OpenSSL.
How to enable disabled ciphersuites in OpenSSL?
EDIT: Additionally, the python ssl module documentation state 3DES is not enabled by default since version 3.4, and I amusing 3.6:
3DES was dropped from the default cipher string.
I need to enable a 3DES cipher for my client purpose. How to do this? is there any way to do this using the ssl context options?
来源：https://stackoverflow.com/questions/51684190/how-to-enable-a-disabled-cipher-by-default-in-openssl-1-1-0g-for-my-python-clien