Over time, as MD5 was getting common use but proving to be vulnerable, the MD6 hashing algorithm emerged. But MD6 went rather unused and faded into obscurity, Most likely because of the uncertainties people today had about MD5. append "1" bit to message< // Recognize: the input bytes are considered https://louiskptac.onesmablog.com/considerations-to-know-about-what-is-md5-technology-74100404