MD4 generator tool generates an MD4 hash of 32 characters length for any string input. MD4 is a cryptographic hash function designed by Ronald Rivest in 1990. It is a predecessor to MD5. MD4 is not considered secure and should not be used for new applications. It is still used in some legacy applications. MD4 is a one-way hash function, meaning that it is easy to compute the hash value from the message, but it is computationally infeasible to find a message that produces a given hash value. MD4 is not collision-resistant, meaning that it is easy to find two different messages that produce the same hash value. MD4 is not intended to be used as a cryptographic hash function, but it has been found to suffer from extensive vulnerabilities. It can still be used as a checksum to verify data integrity, but only against unintentional corruption. MD4 is fast in software and can be efficiently implemented on a wide variety of hardware. MD4 is used in a wide variety of cryptographic applications, and is also commonly used to verify data integrity.