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Output real private key in x25519 command (#1747)

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Hellojack 2023-03-08 21:43:42 +08:00 committed by GitHub
parent c04c333afc
commit 4a0b45d1ff
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 2 deletions
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12
main/commands/all/x25519.go
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@ -4,7 +4,6 @@ import (
"crypto/rand" "crypto/rand"
"encoding/base64" "encoding/base64"
"fmt" "fmt"
"io"
"github.com/xtls/xray-core/main/commands/base" "github.com/xtls/xray-core/main/commands/base"
"golang.org/x/crypto/curve25519" "golang.org/x/crypto/curve25519"
@ -44,17 +43,26 @@ func executeX25519(cmd *base.Command, args []string) {
goto out goto out
} }
} }
if privateKey == nil { if privateKey == nil {
privateKey = make([]byte, curve25519.ScalarSize) privateKey = make([]byte, curve25519.ScalarSize)
if _, err = io.ReadFull(rand.Reader, privateKey); err != nil { if _, err = rand.Read(privateKey); err != nil {
output = err.Error() output = err.Error()
goto out goto out
} }
} }
// Modify random bytes using algorithm described at:
// https://cr.yp.to/ecdh.html.
privateKey[0] &= 248
privateKey[31] &= 127
privateKey[31] |= 64
if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil { if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
output = err.Error() output = err.Error()
goto out goto out
} }
output = fmt.Sprintf("Private key: %v\nPublic key: %v", output = fmt.Sprintf("Private key: %v\nPublic key: %v",
base64.RawURLEncoding.EncodeToString(privateKey), base64.RawURLEncoding.EncodeToString(privateKey),
base64.RawURLEncoding.EncodeToString(publicKey)) base64.RawURLEncoding.EncodeToString(publicKey))