SM4 is a 128-bit block cipher, currently established as a national standard (GB/T 32907-2016) of China. Multiple block cipher modes are supported. It complete implementation of SM4 cipher encryption/decryption with ECB, CBC, CFB, OFB, CTR block modes.
Random Password Generator can create random passwords of a specified length online. By setting whether the password includes lowercase letters (a-z), uppercase letters (A-Z), digits (0-9), and special characters, it can randomly generate passwords between 4 and 32 characters in length.