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| # common/utils/bcrypt.go
package utils
import (
"bytes"
"crypto/md5"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"encoding/hex"
"encoding/pem"
"fmt"
"log"
"github.com/tjfoc/gmsm/sm2"
x509g "github.com/tjfoc/gmsm/x509"
"golang.org/x/crypto/bcrypt"
)
func GenerateFromPassword(pwd string) (hashedPassword string, err error) {
password := []byte(pwd)
// Hashing the password with the default cost of 10
hashedPasswordBytes, err := bcrypt.GenerateFromPassword(password, bcrypt.DefaultCost)
hashedPassword = string(hashedPasswordBytes)
return
}
func CompareHashAndPassword(hashedPwd, plainPwd string) bool {
byteHash := []byte(hashedPwd)
err := bcrypt.CompareHashAndPassword(byteHash, []byte(plainPwd))
if err != nil {
return false
}
return true
}
// EncryptSm2 加密
func EncryptSm2(privateKey, content string) string {
// 从十六进制导入公私钥
priv, err := x509g.ReadPrivateKeyFromHex(privateKey)
if err != nil {
log.Fatal(err)
}
// 公钥加密部分
msg := []byte(content)
pub := &priv.PublicKey
cipherTxt, err := sm2.Encrypt(pub, msg, rand.Reader, sm2.C1C2C3) // sm2加密
if err != nil {
log.Fatal(err)
}
// fmt.Printf("加密文字:%s\n加密结果:%x\n", msg, cipherTxt)
encodeRes := fmt.Sprintf("%x", cipherTxt)
return encodeRes
}
// DecryptSm2 解密
func DecryptSm2(privateKey, encryptData string) (string, error) {
// 从十六进制导入公私钥
priv, err := x509g.ReadPrivateKeyFromHex(privateKey)
if err != nil {
return "", err
}
// 私钥解密部分
hexData, err := hex.DecodeString(encryptData)
if err != nil {
return "", err
}
plainTxt, err := sm2.Decrypt(priv, hexData, sm2.C1C2C3) // sm2解密
if err != nil {
return "", err
}
// fmt.Printf("解密后的明文：%s\n私钥：%s \n 匹配一致", plainTxt, x509.WritePrivateKeyToHex(priv))
return string(plainTxt), nil
}
// EncryptAndDecrypt 加密/解密
func EncryptAndDecrypt(privateKey, content string) {
// 从十六进制导入公私钥
priv, err := x509g.ReadPrivateKeyFromHex(privateKey)
if err != nil {
log.Fatal(err)
}
// 公钥加密部分
msg := []byte(content)
pub := &priv.PublicKey
cipherTxt, err := sm2.Encrypt(pub, msg, rand.Reader, sm2.C1C2C3) // sm2加密
if err != nil {
log.Fatal(err)
}
fmt.Printf("加密文字:%s\n加密结果:%x\n", msg, cipherTxt)
// 私钥解密部分
plainTxt, err := sm2.Decrypt(priv, cipherTxt, sm2.C1C2C3) // sm2解密
if err != nil {
log.Fatal(err)
}
if !bytes.Equal(msg, plainTxt) {
log.Fatal("原文不匹配:", msg)
}
fmt.Printf("解密后的明文：%s\n私钥：%s \n 匹配一致", plainTxt, x509g.WritePrivateKeyToHex(priv))
}
// EncryptRSA 加密
func EncryptRSA(content, publicKey string) (encryptStr string, err error) {
// var publicKey = `-----BEGIN PUBLIC KEY-----
// MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDaIWAL13RU+bJN2hfmTSyOBotf
// 71pq8jc2ploPBHtN3smTUkYPbX2MIbO9TrRj3u67s/kGQZrz6tyQ68oexpukPN4/
// ypzp64UA5CQENSA41ZxTpYADbFQsiX9Spv6aDHhHzUlZtWRru9ptcFO3tDKq0ACT
// OAR1ZEHFwQGhzwaAowIDAQAB
// -----END PUBLIC KEY-----`
block, _ := pem.Decode([]byte(publicKey))
if block == nil {
return "", fmt.Errorf("failed to parse public key PEM")
}
publicKeyInterface, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return "", err
}
// 类型断言
rsaPublicKey := publicKeyInterface.(*rsa.PublicKey)
// 加密数据
encryptedData, err := rsa.EncryptPKCS1v15(rand.Reader, rsaPublicKey, []byte(content))
if err != nil {
return "", fmt.Errorf("error encrypting data:%v", err)
}
return base64.StdEncoding.EncodeToString(encryptedData), err
}
// DecryptRSA 解密
func DecryptRSA(encryptStr, privateKey string) (content string, err error) {
// var privateKey = `-----BEGIN PRIVATE KEY-----
// MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBANohYAvXdFT5sk3a
// F+ZNLI4Gi1/vWmryNzamWg8Ee03eyZNSRg9tfYwhs71OtGPe7ruz+QZBmvPq3JDr
// yh7Gm6Q83j/KnOnrhQDkJAQ1IDjVnFOlgANsVCyJf1Km/poMeEfNSVm1ZGu72m1w
// U7e0MqrQAJM4BHVkQcXBAaHPBoCjAgMBAAECgYA/aJJN/uyvQwKlBPALn4WDJ73e
// PmrvScfpGAR39xqM8WVxcOoy0+Y6FRX1wupHWefWIqQSQIH1w+EoM5LGzX8yflSo
// lG3E0mgJzrMAOTs5FVkdN4tV6rKYq/vA9R67AD0a9nq7yOFeTqjGzWj4l7Vptvu4
// prK5GWV+i0+mpB2kKQJBAP0n1EMAHQSW38zOngfaqC6cvnjEbX4NnhSPRZVzlu3y
// ZkitiA/Y96yCCybCWD0TkF43Z1p0wIGuXSJ1Igku6bcCQQDclMziUz1RnQDl7RIN
// 449vbmG2mGLoXp5HTD9QP0NB46w64WwXIX7IZL2GubndTRFUFTTPLZZ80XbhFtp6
// 19B1AkEAnIgjJGaOisbrjQz5BCw8r821rKDwfu/WninUwcteOLUYb7n1Fq92vZEP
// aiDjRKizLL6fRnxIiCcTaXn52KnMUwJBAJaKOxYPRx8G7tD8rcCq2H5tL+TFNWNv
// B8iTAfbLZiR2tFlu9S0IIBW1ox9qa63b5gKjgmoOq9C9x8swpKUH2u0CQAKDHqwh
// aH6lVtV8cw55Ob8Dsh3PgFUazuM1+e5PjmZku3/2jeQQJrecu/S6LooPdeUf+EtV
// OB/5HvFhGpEu2/E=
// -----END PRIVATE KEY-----`
block, _ := pem.Decode([]byte(privateKey))
if block == nil {
return "", fmt.Errorf("failed to parse private key PEM")
}
privateKeyData, err := x509.ParsePKCS8PrivateKey(block.Bytes)
if err != nil {
return "", err
}
privateKeyInterface := privateKeyData.(*rsa.PrivateKey)
// 解密数据
byt, err := base64.StdEncoding.DecodeString(encryptStr)
if err != nil {
return "", fmt.Errorf("base64 DecodeString err:%v", err)
}
decryptedData, err := rsa.DecryptPKCS1v15(rand.Reader, privateKeyInterface, byt)
if err != nil {
return "", fmt.Errorf("error decrypting data:%v", err)
}
return string(decryptedData), nil
}
func Md5(s []byte) string {
m := md5.New()
m.Write(s)
return hex.EncodeToString(m.Sum(nil))
}
|
