mardi 7 juillet 2020, 08:56 #2
MacOS Keychain
"The flag is the SHA256 hash of the concatenation of the macOS session’s password and the Gmail account password : flag = sha256(session_password + gmail_password)" definitely means that there are two passwords.
I’m not sure if you got what is the format of the flag. You have to find 2 passwords : session_password (the pass for logging in to MacOS) and gmail_password (this is the gmail password). Let’s assume session_password is 123456 and gmail_password is 654321, the concatenation of these passwords is 123456654321 and the flag is sha256 hash of 123456654321