I wish i can use one password to encrypt several strings but the problem is they end up almost all the same like if i encrypt new york with password cities it will be something like 9881, washington encrypted with same pw will be something like 9882, Phoenix will be 9883 etc... Is this really reliable way to encrypt things when people can just change one number in encrypted string and therefore get your data even if you dont want them to? How can i encrypt strings with same password but make