gmssl 生成SM2证书、加密、解密、签名、验签_sm2 验签

1. 生成SM2密钥对

        gmssl ecparam -genkey -name sm2p256v1   -out sm2keypair.pem -text

2.查看SM2密钥对

        gmssl ec -in sm2keypair.pem -text

3.生成自签名证书

        gmssl req -x509 -key sm2keypair.pem -subj   "/C=CN/ST=BJ/L=BJ/O=HD/OU=dev

/CN=hello/emailAddress=hello@world.com" -out sm2cert.pem

4.查看证书详情

        gmssl x509 -in sm2cert.pem    -text

5.证书加密明文数据

        echo "12345678900987654321" > plain.dat
        gmssl sm2utl -encrypt -inkey sm2cert.pem  -certin -in plain.dat -out cipher.dat

6.私钥解密密文数据

        gmssl sm2utl -decrypt  -inkey sm2keypair.pem  -in cipher.dat -out recov.dat
        cat recov.dat

7.私钥签名消息

        echo "12345678900987654321" > msg.dat
        gmssl sm2utl -sign  -inkey sm2keypair.pem  -in msg.dat  -out sign.dat -id "1234567812345678"

8.证书验证消息签名

        gmssl sm2utl -verify -inkey sm2keypair.pem  -in msg.dat  -sigfile  sign.dat -id "1234567812345678"

附录示例：