80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package main
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import (
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"crypto/elliptic"
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"fmt"
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)
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func main() {
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// 创建 P256 曲线
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curve := elliptic.P256()
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//初始化用户id 和消息
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ID := []byte("1234567890111213141516171819202122232425")
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msg := []byte("DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD")
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//生成KGC公私钥
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PKx, PKy, msk := genKGCKey(curve)
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//用户生成秘密值,后经过运算返回点
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Xx, Xy, x := genSecret(curve)
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//KGC生成用户的部分私钥d和全部公钥Q
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d, Qx, Qy := genPartialKey(curve, ID, msk, Xx, Xy, PKx, PKy)
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//用户验证生成的部分私钥和全部公钥是否有效
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err := VerifyEquation(curve, ID, d, Qx, Qy, Xx, Xy, PKx, PKy)
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if err != nil {
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fmt.Println("KGC生成的私钥无效！！！")
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return
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}
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fmt.Println("生成的私钥有效！")
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//用户生成全部私钥
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s := genPriKey(curve, ID, x, d, Xx, Xy)
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//用户对消息签名
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Ux, Uy, v := SignThumb(curve, ID, msg, s, Qx, Qy, PKx, PKy)
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//接收方对消息进行验证
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err = VerifyThumb(curve, ID, msg, Qx, Qy, PKx, PKy, Ux, Uy, v)
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if err != nil {
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fmt.Println("签名验证失败！")
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}
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//fmt.Printf("KGC基点为：\nP_x:%s\nP_y:%s\n", curve.Params().Gx, curve.Params().Gy)
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//fmt.Printf("用户的公钥为：\nPK_pub_s:%x\nPK_pub_s:%x\n", PKx, PKy)
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//fmt.Println(append([]byte(PKx.Text(16)), []byte(PKy.Text(16))...))
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pubdata := mergeBigInts(Qx, Qy)
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kgcpub := mergeBigInts(PKx, PKy)
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pridata := mergeBigInts(s)
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fmt.Printf("KGC公钥为：%s\n", kgcpub)
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fmt.Printf("用户公钥为：%s\n", pubdata)
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fmt.Printf("用户私钥为：%s\n", pridata)
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//fmt.Printf("用户ID为：\nID:%s\n", ID)
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writeToFolder("./cert", "pkpub.txt", kgcpub)
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writeToFolder("./cert", "prikey.txt", pridata)
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writeToFolder("./cert", "pubkey.txt", pubdata)
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data, _ := readFileFromDirectory("./cert", "pubkey.txt")
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fmt.Println(data)
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dax, day := bytes_halve(data)
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Dx := BytesToBig(dax)
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Dy := BytesToBig(day)
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fmt.Println(Dx, Dy)
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onCurve := curve.IsOnCurve(Dx, Dy)
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if onCurve {
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fmt.Println("点在椭圆曲线上")
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} else {
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fmt.Println("点不在椭圆曲线上")
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}
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//return
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}
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