Xray-core/main/commands/all/curve25519.go
チセ 2da476eef4
Command: Add `wg` for wireguard key generation (#2794)
* Command: Add `wg` for wireguard key generation

* Command: Merge `x25519` and `wg`
2023-12-11 20:52:10 -05:00

58 lines
1.2 KiB
Go

package all
import (
"crypto/rand"
"encoding/base64"
"fmt"
"golang.org/x/crypto/curve25519"
)
func Curve25519Genkey(StdEncoding bool, input_base64 string) {
var output string
var err error
var privateKey, publicKey []byte
var encoding *base64.Encoding
if *input_stdEncoding || StdEncoding {
encoding = base64.StdEncoding
} else {
encoding = base64.RawURLEncoding
}
if len(input_base64) > 0 {
privateKey, err = encoding.DecodeString(input_base64)
if err != nil {
output = err.Error()
goto out
}
if len(privateKey) != curve25519.ScalarSize {
output = "Invalid length of private key."
goto out
}
}
if privateKey == nil {
privateKey = make([]byte, curve25519.ScalarSize)
if _, err = rand.Read(privateKey); err != nil {
output = err.Error()
goto out
}
}
// Modify random bytes using algorithm described at:
// https://cr.yp.to/ecdh.html.
privateKey[0] &= 248
privateKey[31] &= 127 | 64
if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
output = err.Error()
goto out
}
output = fmt.Sprintf("Private key: %v\nPublic key: %v",
encoding.EncodeToString(privateKey),
encoding.EncodeToString(publicKey))
out:
fmt.Println(output)
}