The PKCS12 files use algorithms that are legacy, you need to load the legacy and default provider to be able to load them. You can do that either with configuration file (see man 5 config) or with OSSL_PROVIDER_load() calls. Regards, Tomas On Wed, 2022-02-09 at 11:11 +0000, Srinivas, Saketh (c) wrote: > Does openssl 3.0 supports the openssl 1.0 pkcs12 files. Is it > backward compatible. For me it giving error in PKCS12_parse > function. > > > thanks, > Saketh. > > Notice: This e-mail together with any attachments may contain > information of Ribbon Communications Inc. and its Affiliates that is > confidential and/or proprietary for the sole use of the intended > recipient. Any review, disclosure, reliance or distribution by others > or forwarding without express permission is strictly prohibited. If > you > are not the intended recipient, please notify the sender immediately > and then delete all copies, including any attachments. -- Tomáš Mráz, OpenSSL