Hi, I want to make a write an app that will encrypt/decrypt files using the OpenSSL's crypto libraries. Actually i can encrypt files using system() with the command line (and VARIABLES) : "/usr/bin/openssl enc -aes-256-cbc -salt -in FILENAME -out FILENAME_ENC -pass pass:HASH" and decrypt file using : "/usr/bin/openssl enc -aes-256-cbc -d -in FILENAME_ENC -out FILENAME -pass pass:HASH" I read this : https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption But i don't know where to start... Does anyone can help me ? Thank you very much for your replies. Cheers, Wesley -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mta.openssl.org/pipermail/openssl-users/attachments/20160207/d40cf631/attachment.html>