On Mon, Jun 26, 2017, Nicola Tuveri wrote: > Hi, > > I'm working on ENGINE development, and I have the need to add an NID for a > custom message digest, and eventually for ciphers and PKEY methods. > Some of the associated object don't (and won't ever) have an associated > OID, but I need to add them dynamically to avoid requiring patches to the > upstream OpenSSL code before being able to use my engine. > > I'm currently (ab)using OBJ_create() [0], but it looks like it requires to > specify a valid OID. > I know it is possible to have NIDs associated with objects without OID > (e.g. NID_siphash) when they are statically defined in OpenSSL source code, > but I cannot find a way to declare similar objects without OID dynamically. > > Before 1.1.0, when structures weren't opaque, I could manipulate the > contents of the created object directly and somehow work around this > limitation, but in 1.1.0 this is not possible. > > Does anyone know of the right way to dynamically create an NID associated > with an object without OID? >
What do you want to do with the NID? Does it need to have a valid short name and/or long name associated with it (so OBJ_sn2nid etc work) but no valid OID or do you just need a NID value? You're right that currently OBJ_create() needs a valid OID passed to it: you can't pass a NULL to create an "OIDless NID" as you can by editing objects.txt. Steve. -- Dr Stephen N. Henson. OpenSSL project core developer. Commercial tech support now available see: http://www.openssl.org -- openssl-dev mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
