[openssl-users] additional data (MAC'ed only) over TLS connection?

Salz, Rich rsalz at akamai.com
Mon Aug 15 11:44:37 UTC 2016

> the EVP_EncryptUpdate function has the option to pass data that is only
> MAC'ed but not encrypted. Is there some similar provision in the BIO
> interface? I have a use case, where I'd like to "inject"
> pre-encrypted/pre-mac'ed data into a TLS stream. Any suggestion on a low-
> effort way to do this?

You mean you have an SSL BIO, and you want to avoid the SSL encryption/record-layer/etc for part of it?

Not possible.

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