-- LuaTools需要PROJECT和VERSION这两个信息
PROJECT = "gmssldemo"
VERSION = "1.0.0"

log.info("main", PROJECT, VERSION)

-- sys库是标配
_G.sys = require("sys")

if wdt then
    --添加硬狗防止程序卡死，在支持的设备上启用这个功能
    wdt.init(9000)--初始化watchdog设置为9s
    sys.timerLoopStart(wdt.feed, 3000)--3s喂一次狗
end

sys.taskInit(function()

    sys.wait(1000)
    log.info("gmssl", "start")
    -- 未加密字符串
    local originStr = "!!from LuatOS!!"

    -- SM2 , 非对称加密, 类似于RSA,但属于椭圆算法
    -- 就当前实现还是比较慢的
    if gmssl.sm2encrypt then -- 部分BSP不支持
        local pkx = "ABE87C924B7ECFDEA1748A06E89003C9F7F4DC5C3563873CE2CAE46F66DE8141"
        local pky = "9514733D38CC026F2452A6A3A3A4DA0C28F864AFA5FE2C45E0EB6B761FBB5286"
        local private = "129EDC282CD2E9C1144C2E7315F926D772BC96600D2771E8BE02060313FE00D5"

        -- GMSSL默认格式
        log.info("==== SM2 默认GMSSL模式")
        local encodeStr = gmssl.sm2encrypt(pkx,pky,originStr)
        log.info("sm2默认模式", "加密后", encodeStr and  string.toHex(encodeStr))
        if encodeStr then
            log.info("sm2默认模式", "解密后", gmssl.sm2decrypt(private,encodeStr))
        end
        

        -- 网站兼容模式 https://i.goto327.top/CryptTools/SM2.aspx
        -- 密文格式 C1C3C2, 新国标, 一般是这种
        log.info("==== SM2 网站兼容模式")
        local encodeStr = gmssl.sm2encrypt(pkx,pky,originStr, true)
        log.info("sm2网站兼容模式 C1C3C2", "加密后", encodeStr and  string.toHex(encodeStr))
        if encodeStr then
            log.info("sm2网站兼容模式 C1C3C2", "解密后", gmssl.sm2decrypt(private,encodeStr, true))
        else
            log.info("解密失败")
        end
        -- 密文格式 C1C2C3, 老国标, 老的Java库通常支持这种
        log.info("==== SM2 网站兼容模式, 但C1C2C3")
        local encodeStr = gmssl.sm2encrypt(pkx,pky,originStr, true, true)
        log.info("sm2网站兼容模式 C1C2C3", "加密后", encodeStr and  string.toHex(encodeStr))
        if encodeStr then
            log.info("sm2网站兼容模式 C1C2C3", "解密后", gmssl.sm2decrypt(private,encodeStr, true, true))
        else
            log.info("解密失败")
        end
    end

    -- SM3 算法, hash类
    if gmssl.sm3update then
        log.info("=== SM3测试")
        encodeStr = gmssl.sm3update("lqlq666lqlq946")
        log.info("gmssl.sm3update",string.toHex(encodeStr))
    end

    if gmssl.sm4encrypt then
        log.info("=== SM4测试")
        local passwd = "1234567890123456"
        local iv = "1234567890666666"
        -- SM4 算法, 对称加密
        originStr = ">>SM4 ECB ZeroPadding test<<"
        --加密模式：ECB；填充方式：ZeroPadding；密钥：1234567890123456；密钥长度：128 bit
        encodeStr = gmssl.sm4encrypt("ECB", "ZERO", originStr, passwd)
        log.info("sm4.ecb.zero", "加密后", string.toHex(encodeStr))
        log.info("sm4.ecb.zero", "解密后", gmssl.sm4decrypt("ECB","ZERO",encodeStr,passwd))

        originStr = ">>SM4 ECB Pkcs5Padding test<<"
        --加密模式：ECB；填充方式：Pkcs5Padding；密钥：1234567890123456；密钥长度：128 bit
        encodeStr = gmssl.sm4encrypt("ECB", "PKCS5", originStr, passwd)
        log.info("sm4.ecb.pks5", "加密后", string.toHex(encodeStr))
        log.info("sm4.ecb.pks5", "解密后", gmssl.sm4decrypt("ECB","PKCS5",encodeStr,passwd))

        originStr = ">>SM4 CBC Pkcs5Padding test<<"
        --加密模式：CBC；填充方式：Pkcs5Padding；密钥：1234567890123456；密钥长度：128 bit；偏移量：1234567890666666
        encodeStr = gmssl.sm4encrypt("CBC","PKCS5", originStr, passwd, iv)
        log.info("sm4.cbc.pks5", "加密后", string.toHex(encodeStr))
        log.info("sm4.cbc.pks5", "解密后", gmssl.sm4decrypt("CBC","PKCS5",encodeStr,passwd, iv))

        -- 完全对齐16字节的对比测试
        originStr = "1234567890123456"
        encodeStr = gmssl.sm4encrypt("ECB","PKCS7",originStr,passwd)
        log.info("sm4.ecb.pkcs7", encodeStr:toHex())
        encodeStr = gmssl.sm4encrypt("ECB","PKCS5",originStr,passwd)
        log.info("sm4.ecb.pkcs5", encodeStr:toHex())
        encodeStr = gmssl.sm4encrypt("ECB","ZERO",originStr,passwd)
        log.info("sm4.ecb.zero", encodeStr:toHex())
        encodeStr = gmssl.sm4encrypt("ECB","NONE",originStr,passwd)
        log.info("sm4.ecb.none", encodeStr:toHex())
    end

    -- SM2签名和验签
    if gmssl.sm2sign then
        local originStr = string.fromHex("434477813974bf58f94bcf760833c2b40f77a5fc360485b0b9ed1bd9682edb45")
        local pkx = "ABE87C924B7ECFDEA1748A06E89003C9F7F4DC5C3563873CE2CAE46F66DE8141"
        local pky = "9514733D38CC026F2452A6A3A3A4DA0C28F864AFA5FE2C45E0EB6B761FBB5286"
        local private = "129EDC282CD2E9C1144C2E7315F926D772BC96600D2771E8BE02060313FE00D5"

        -- 不带id的情况,即默认id="1234567812345678"
        local sig = gmssl.sm2sign(private, originStr, nil)
        log.info("sm2sign", sig and sig:toHex())
        if sig then
            local ret = gmssl.sm2verify(pkx, pky, originStr, nil, sig)
            log.info("sm2verify", ret or "false")
        end

        -- 带id的情况
        local id = "1234"
        local sig = gmssl.sm2sign(private, originStr, id)
        log.info("sm2sign", sig and sig:toHex())
        if sig then
            local ret = gmssl.sm2verify(pkx, pky, originStr, id, sig)
            log.info("sm2verify", ret or "false")
        end
    end

    log.info("gmssl", "ALL Done")
end)

-- 用户代码已结束---------------------------------------------
-- 结尾总是这一句
sys.run()
-- sys.run()之后后面不要加任何语句!!!!!