Cipher - Validation Methodcipher
CIPHER - VALIDATION (METHOD)
basic of cryptography has been made thusands years ago in the Caves. if you have key, can decoding. \
info
compare two strings by cipher(encode/encrypt) method.
example
function isValid(bytes4 pair, string memory key) public pure returns (bool) {
bytes4 tmp = _encode(key);
if(compare(pair, tmp)) return true;
else return false;
}