go-gmsm cgo庫

介紹

基于github.com/emmansun/gmsm庫編寫的SM2對C
開放的庫

特性：非對稱加密、不支持跨平臺編譯

git地址：https://gitee.com/state-secret-series/go-gmsm.git

軟件架構

Go、Cgo、mod

安裝教程

克隆倉庫

git clone https://gitee.com/state-secret-series/go-gmsm.git

進入go-gmsm目錄

cd go-gmsm

下載依賴

go mod tidy

cgo靜態編譯

go build -x -buildmode=c-archive -o libgosm2.a

編譯完成后生成 libgosm2.a 、libgosm2.h 文件

使用教程

在C語言中調用

int main() {GO_SM2_KEY_PAIR key_pair;GO_SM2_SIGNATURE_STRUCT sm2_sig;GO_SM2_ENCRYPT_STRUCT ciphertext;GO_SM2_DECRYPT_STRUCT plaintext;GO_SM2_ERROR_STRUCT  error;unsigned char msg[] = {"這是測試數據"};int msg_len = (int) (strlen((char *) msg));unsigned char user_id[] = {"1234567812345678"};int user_id_len = (int) (strlen((char *) user_id));
//    unsigned char *ciphertext = NULL;
//    int ciphertext_len=0;int error_code;error_code =  GenerateKeyPair(&key_pair,&error);if(error_code){printf("GenerateKeyPair failed!%s\n", error.error);return error_code;}print_hex("公鑰", key_pair.pub_key, GO_SM2_PUBKEY_LEN);print_hex("私鑰", key_pair.pri_key, GO_SM2_PRIKEY_LEN);GoSm2SignData(key_pair.pri_key, GO_SM2_PRIKEY_LEN, msg, msg_len, user_id, user_id_len,GO_SM2_MODE_DEFAULT, &sm2_sig,&error);print_hex("簽名", sm2_sig.sig, sm2_sig.sig_len);error_code = Sm2SignVerify(key_pair.pub_key, GO_SM2_PUBKEY_LEN, msg, msg_len, user_id, user_id_len, &sm2_sig,&error);if (error_code) {printf("Verify SM2 signature failed!%d\n", error_code);return error_code;}printf("Verify SM2 signature succeeded!\n");error_code = Sm2Encrypt(key_pair.pub_key, GO_SM2_PUBKEY_LEN, msg, msg_len, GO_SM2_MODE_ANS1, GO_SM2_ORDER_C1C2C3, &ciphertext,&error);if (error_code) {printf("Sm2Encrypt SM2 Sm2Encrypt failed!%d\n", error_code);return error_code;}printf("Sm2Encrypt SM2 Sm2Encrypt succeeded!\n");print_hex("加密結果", ciphertext.ciphertext, ciphertext.ciphertext_len);error_code = Sm2Decrypt(key_pair.pri_key,GO_SM2_PRIKEY_LEN,ciphertext.ciphertext, ciphertext.ciphertext_len,GO_SM2_ORDER_C1C2C3,&plaintext,&error);if (error_code) {printf("Sm2Decrypt SM2 Sm2Decrypt failed!%d\n", error_code);return error_code;}printf("Sm2Decrypt SM2 Sm2Decrypt succeeded!\n");print_hex("解密結果", plaintext.plaintext, plaintext.plaintext_len);printf("文明:%s\n", plaintext.plaintext);return 0;
}