unbreakable code
- cipherHidden writing system
- cryptographyScience of secure messaging
- encryptionConverting data into code
- secretConcealed information
- enigmaSomething hard to fathom
classified · impenetrable · fortress · locked · decode · hack · military · spy · scrambled · algorithm · NSA · Turing · puzzle · key · secure · indestructible · vault · mystery
accessibility of meaning
unbreakable codeplaintext
Unencoded readable information
clear text · unencrypted · in the clear · plain language · open book
accessibility of information
unbreakable codeplain text
Unencoded readable characters
cleartext · public information · open book · broadcast message