The master password is the one you received when you initially signed up. It can’t be found under the ‘permissions’ tab in your wallet.
All other keys can be found there.
The private posting key should be used for daily logins. It allows you to post, vote and comment.
The private active key is the key that protects your financial transactions, so you should only be using that when dealing with the finances of your account.
The master password should be kept somewhere safe. You only need it to change your password.
You can find this info in the FAQ:
https://steemit.com/faq.html#How_can_I_keep_my_Steem_account_secure
Thank you so much.
I followed your post guideline to my permission tab, saw the public posting key and thought it to be the private posting key...hehe... minnow's ignorance. But now, think i have been properly schooled and cleared of all ignorance as regards the security keys stuff.
A big THANKS!
You’re welcome.
Glad I could help