Hi, at borgbackup project, we are currently trying to make it compatible with OpenSSL 1.0.x and 1.1.x.
For the opaque cipher ctx this worked quite easily like this: https://github.com/borgbackup/borg/pull/1193/files#diff-85ee6ebe1cdcfd4a4699c3913d519b27R23 I could not have a cipher ctx structure as a instance variable, but a pointer to one worked. I am just computing the current IV myself, so I do not need to reach into the ctx (I need to do that anyway to support gcm mode). I used EVP_CIPHER_CTX_new/free() - although not in the man page, they are there since 0.98 (and the wiki examples use them, too). Solved. In borgbackup 1.2, we will also need the flexible (not single-call) interface to HMAC and I could get it working using the same method as above (using a pointer and the new/free functions - we do not access into hmac ctx here, so it is even simpler). But: HMAC_CTX_{new/free} are not available on 1.0.x. :-( So my question / request: could these functions be added to a future update, like 1.0.2i, to simplify migration / portability of code? I suspect that these 2 functions are very simple to backport from 1.1 to 1.0.x. Cheers, Thomas -- GPG ID: FAF7B393 GPG FP: 6D5B EF9A DD20 7580 5747 B70F 9F88 FB52 FAF7 B393 -- Ticket here: http://rt.openssl.org/Ticket/Display.html?id=4589 Please log in as guest with password guest if prompted -- openssl-dev mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
