mirror of
https://github.com/howmp/reality
synced 2025-02-23 18:52:16 +08:00
143 lines
3.6 KiB
Go
143 lines
3.6 KiB
Go
package main
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/ecdh"
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"crypto/ecdsa"
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"crypto/ed25519"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/tls"
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"crypto/x509"
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"encoding/base64"
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"fmt"
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)
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func handshake() {
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conn, err := tls.Dial("tcp", "www.qq.com:443", &tls.Config{})
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if err != nil {
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panic(err)
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}
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err = conn.Handshake()
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if err != nil {
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panic(err)
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}
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// conn.Close()
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}
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func main() {
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signTest()
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signTest2()
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authkeyTest()
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plaintext := make([]byte, 32)
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if _, err := rand.Read(plaintext); err != nil {
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panic(err)
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}
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copy(plaintext, []byte("REALITY"))
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fmt.Println("plaintext", len(plaintext), plaintext)
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}
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func signTest() {
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fmt.Println("signTest")
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privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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panic(err)
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}
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data, err := x509.MarshalECPrivateKey(privateKey)
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fmt.Println("priv", base64.RawURLEncoding.EncodeToString(data))
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if err != nil {
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panic(err)
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}
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data, err = x509.MarshalPKIXPublicKey(&privateKey.PublicKey)
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if err != nil {
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panic(err)
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}
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fmt.Println("publ", base64.RawURLEncoding.EncodeToString(data))
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hash := []byte("hello")
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sign, err := ecdsa.SignASN1(rand.Reader, privateKey, hash[:])
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if err != nil {
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panic(err)
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}
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fmt.Println("sign", len(sign), base64.RawURLEncoding.EncodeToString(sign))
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ok := ecdsa.VerifyASN1(&privateKey.PublicKey, hash[:], sign)
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fmt.Println("verify", ok)
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}
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func signTest2() {
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pub, priv, err := ed25519.GenerateKey(nil)
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if err != nil {
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panic(err)
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}
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fmt.Println("priv", base64.RawURLEncoding.EncodeToString(priv))
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fmt.Println("publ", base64.RawURLEncoding.EncodeToString(pub))
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msg := []byte("1")
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sign := ed25519.Sign(priv, msg)
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fmt.Println("sign", len(sign), base64.RawURLEncoding.EncodeToString(sign))
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ok := ed25519.Verify(pub, msg, sign)
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fmt.Println("verify", ok)
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}
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func authkeyTest() {
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fmt.Println("authkeyTest")
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// 服务端持有私钥，客户端持有公钥
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privateKeyServer, publicKeyClient := genEcdhX25519()
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fmt.Println("priv", len(privateKeyServer), base64.RawURLEncoding.EncodeToString(privateKeyServer))
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fmt.Println("publ", len(publicKeyClient), base64.RawURLEncoding.EncodeToString(publicKeyClient))
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// tmp是每次Client Hello生成,其中公钥放在SessionID，私钥在客户端内存中
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privateKeyTmp, publicKeyTmp := genEcdhX25519()
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// 服务端进行密钥协商，得到authkey
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authkey1, err := ecdhAuthKey(privateKeyServer, publicKeyTmp)
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if err != nil {
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panic(err)
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}
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// 客户端进行密钥协商，得到authkey
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authkey2, err := ecdhAuthKey(privateKeyTmp, publicKeyClient)
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if err != nil {
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panic(err)
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}
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fmt.Println(base64.RawURLEncoding.EncodeToString(authkey1))
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fmt.Println(base64.RawURLEncoding.EncodeToString(authkey2))
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block, err := aes.NewCipher(authkey2)
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if err != nil {
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panic(err)
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}
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aead, err := cipher.NewGCM(block)
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if err != nil {
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panic(err)
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}
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fmt.Println("overhead", aead.Overhead(), "noncesize", aead.NonceSize())
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ciphertext := aead.Seal(nil, make([]byte, aead.NonceSize()), []byte("1234567890123456"), nil)
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fmt.Println(len(ciphertext), base64.RawURLEncoding.EncodeToString(ciphertext))
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}
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func ecdhAuthKey(privateKey []byte, publicKey []byte) ([]byte, error) {
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priv, err := ecdh.X25519().NewPrivateKey(privateKey)
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if err != nil {
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return nil, err
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}
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pub, err := ecdh.X25519().NewPublicKey(publicKey)
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if err != nil {
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return nil, err
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}
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return priv.ECDH(pub)
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}
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func genEcdhX25519() ([]byte, []byte) {
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priv, err := ecdh.X25519().GenerateKey(rand.Reader)
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if err != nil {
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panic(err)
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}
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return priv.Bytes(), priv.PublicKey().Bytes()
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}
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