You can try to use MD5 hashes of long strings.
MD5 (Message-Digest algorithm 5) is a widely-used cryptographic hash
function with a 128-bit hash value. MD5 has been employed in a wide
variety of security applications, and is also commonly used to check
the integrity of data. The generated hash is also non-reversable. Data
cannot be retrieved from the message digest, the digest uniquely
identifies the data.
solved compare two big strings with javascript [closed]