Firstly, I tried a search first and saw some topics that were related but nothing directly addressing what I am looking for. If my search skills are sub-par, I apologize :-D.
I am using openssl and have an AES_KEY structure (AES 256-bit) in memory that is used for encrypting some data. I would very much like to store the AES key to a file. While I can do that pretty easily by hand in an ad hoc manner, I was wondering if there was a standard way of storing this to a file and encrypting them with a passphrase. I was under the impression that PKCS#12 supported the storing of private (symmetric) keys, but all references to storing pkcs12 (e.g. the PKCS12_create() function) seem to want an EVP_PKEY structure, which I think only works with public (asymmetric) key types. So my question has two parts: 1. Is there any way to go from AES_KEY to EVP_PKEY or some other overload of the PKCS12_create() that can take AES_KEYs? 2. Is there another standard file format that I can store an AES_KEY in, and that openssl supports? 3. Bonus question: if the answer to #2 is no, any suggestions on how to do this while still using an aes256 key (32-byte/256-bit) would be appreciated whether that means using another lib for the key storage part of it. Thanks! -- View this message in context: http://old.nabble.com/Encapsulation-of-AES_KEY-tp26293712p26293712.html Sent from the OpenSSL - User mailing list archive at Nabble.com. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
