/
machine.go
106 lines (99 loc) · 2.57 KB
/
machine.go
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package utils
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"crypto/md5"
"encoding/base64"
"encoding/hex"
"github.com/infinit-lab/yolanda/logutils"
"strings"
)
func GetMachineFingerprint() (string, error) {
baseboardUuid, err := GetBaseBoardUUID()
if err != nil {
logutils.Error("Failed to GetBaseBoardUUID. error: ", err)
return "", err
}
cpuId, err := GetCpuID()
if err != nil {
logutils.Error("Failed to GetCpuID. error: ", err)
return "", err
}
diskIds, err := GetDiskSerialNumber()
if err != nil {
logutils.Error("Failed to GetDiskSerialNumber. error: ", err)
return "", err
}
str := baseboardUuid + cpuId
for _, id := range diskIds {
str += id
}
encode := base64.StdEncoding.EncodeToString([]byte(str))
has := md5.Sum([]byte(encode))
encode = base64.StdEncoding.EncodeToString(has[:])
encode = strings.ReplaceAll(encode, "+", "-")
encode = strings.ReplaceAll(encode, "/", "_")
return encode, nil
}
func generateKey(fingerprint string) ([]byte, error) {
fingerprint = strings.ReplaceAll(fingerprint, "-", "+")
fingerprint = strings.ReplaceAll(fingerprint, "_", "/")
decode, err := base64.StdEncoding.DecodeString(fingerprint)
if err != nil {
logutils.Error("Failed to DecodeString. error: ", err)
return nil, err
}
has := md5.Sum(decode)
return has[:], nil
}
func Encode(fingerprint string, content []byte) (string, error) {
key, err := generateKey(fingerprint)
if err != nil {
return "", err
}
block, err := aes.NewCipher(key)
if err != nil {
logutils.Error("Failed to NewCipher. error: ", err)
return "", err
}
iv := bytes.Repeat([]byte("1"), block.BlockSize())
stream := cipher.NewCTR(block, iv)
dst := make([]byte, len(content))
stream.XORKeyStream(dst, content)
return hex.EncodeToString(dst), nil
}
func EncodeSelf(content []byte) (string, error) {
key, err := GetMachineFingerprint()
if err != nil {
return "", err
}
return Encode(key, content)
}
func Decode(fingerprint string, encryptData string) ([]byte, error) {
data, err := hex.DecodeString(encryptData)
if err != nil {
return nil, err
}
key, err := generateKey(fingerprint)
if err != nil {
return nil, err
}
block, err := aes.NewCipher(key)
if err != nil {
logutils.Error("Failed to NewCipher. error: ", err)
return nil, err
}
iv := bytes.Repeat([]byte("1"), block.BlockSize())
stream := cipher.NewCTR(block, iv)
dst := make([]byte, len(data))
stream.XORKeyStream(dst, data)
return dst, nil
}
func DecodeSelf(encryptData string) ([]byte, error) {
key, err := GetMachineFingerprint()
if err != nil {
return nil, err
}
return Decode(key, encryptData)
}