JSFuck uses only 6 different characters "[]()!+" to write and execute code. It is an esoteric programming style based on the atomic parts of JavaScript.
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.