I refer to https://www.openssl.org/docs/manmaster/apps/enc.html and see that the only parameter for key derivation which I can set explicitly (not considering the obvious
-S for setting salt) is
-md which is MD to be used for key derivation algorithm.
Now the question is: what are other implicit parameters for KDF when using OpenSSL in cmd mode? In particular, does it use PBKDF2? And if so - the most important question: what is the default value for number of KDF iterations? I can't find those values.
I am using OpenSSL cmd utility to encrypt plaintexts. The result is decrypted using another crypto library. I need to test password-based encryption in particular.
To make it more clear: I want to save generated salts and passwords, then decrypt ciphertexts with another crypto library which does use PBKDF2 with HMAC_SHAxxx algorithms and gives the opportunity to set number of KDF rounds as well. So I want to have a possibility to derive exactly same keys from passwords and salts as OpenSSL cmd utility does.
Finally, maybe the idea to rely on cmd utility is somewhat bad considering my task. If so, I want to hear your opinion on this, too.
I've got OpenSSL 0.9.8zh 14 Jan 2016 (OS X).