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About

gm4j is the implementation of the Chinese security standardization algorithm in java.

see Chinese cryptography standardization technical committee

Features

• SM3 security algorithm
• Other GM algorithms are being implemented...
• A java security provider
• A convenient security tool

Usage

Calculate the SM3 hash value of byte[]

byte[]abc="abc".getBytes(StandardCharsets.US_ASCII);
GMUtil.sm3(abc);
// or
GMProvider provider=new GMProvider();
MessageDigest digest=MessageDigest.getInstance("SM3", provider);
digest.digest(abc);

Calculate the SM3 hash value of string

GMUtil.sm3("abc");

Calculate the SM3 hash string of the string and convert it to a hexadecimal string

GMUtil.sm3Hex("abc");

Other

1.License

This code is under the Apache Licence v2.

2.Contact me

hello.bug@foxmail.com