CODEWITHSUNDEEP
csslencryptionopenssl
abhiarora
abhiarora

Reputation: 10440

Manually setting AES key in openSSL?

I am writing a SSL Client using openSSL library. I am able to connect to https://www.httpbin.org using my C program. However, i want to manually set my own AES key for further symmetric cryptography and notify the server about key. I know that key for symmetric encryption is set during handshake process. I am using SSL_connect() to connect to server.

How can i manually set key for symmetric cryptography?

Upvotes: 1

Views: 159

Answers (1)

Steffen Ullrich
Steffen Ullrich

Reputation: 123423

This is not possible. The key used for encryption depends on data created by both server and client. This means it is not possible to for the client to have full control over the key value. See also Computing the Master Secret in RFC 5246 (TLS 1.2).

Upvotes: 3

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