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The original was posted on /r/openssl by /u/xaetlas on 2023-07-04 09:09:25+00:00.

I was wondering if i want to implement triplle DES EDE with the openssl library in c - what would i have to do to decrypt a file. I found the method “EVP_des_ede_cfb()”, would i have to use this 3 times to implement 3DES or is once enough?