Introduction - If you have any usage issues, please Google them yourself
Android SM2, SM3, SM4 algorithm supports Service Provider package and certificate making state secret algorithm JCAJCE Service Provider, to adapt to the version Android 4.2.2 ~ 7.0 support for SM2 KeyFactory, KeyPairGenerator, Cipher, Signature, X.509 CertificateFactory interface supports the MessageDigest SM3 Interface, SM3withSM2 hybrid algorithm supports SM4 of Cipher, KeyFactory, KeyGenerator, SecretKey interface correlation algorithm CMAC-SM4, Poly1305-SM4