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102 lines
2.0 KiB
Go
102 lines
2.0 KiB
Go
package crypto
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import (
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha1"
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"crypto/sha256"
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"crypto/x509"
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"encoding/pem"
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"errors"
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"fmt"
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"github.com/Luzifer/go-openssl/v3"
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"golang.org/x/crypto/bcrypt"
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)
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// SHA1 回傳sha1加密
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func SHA1(v string) string {
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h := sha1.New()
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h.Write([]byte(v))
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bs := h.Sum(nil)
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return fmt.Sprintf("%x", bs)
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}
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// SHA256 回傳sha256加密
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func SHA256(v string) string {
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h := sha256.New()
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h.Write([]byte(v))
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bs := h.Sum(nil)
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return fmt.Sprintf("%x", bs)
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}
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// EncryptPassword 加密密碼
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func EncryptPassword(pwd string) (string, error) {
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hash, err := bcrypt.GenerateFromPassword([]byte(pwd), bcrypt.DefaultCost)
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if err != nil {
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return "", err
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}
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return string(hash), nil
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}
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// CheckPassword 檢查密碼
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func CheckPassword(pwd, hash string) error {
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return bcrypt.CompareHashAndPassword([]byte(hash), []byte(pwd))
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}
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// EncryptAES aes加密
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func EncryptAES(value, key string) ([]byte, error) {
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o := openssl.New()
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enc, err := o.EncryptBytes(key, []byte(value), openssl.DigestMD5Sum)
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if err != nil {
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return nil, err
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}
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return enc, nil
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}
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// DecryptAES aes解密
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func DecryptAES(value, key string) ([]byte, error) {
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o := openssl.New()
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dec, err := o.DecryptBytes(key, []byte(value), openssl.DigestMD5Sum)
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if err != nil {
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return nil, err
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}
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return dec, nil
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}
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// EncryptRSA rsa加密
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func EncryptRSA(value, publicKey []byte) ([]byte, error) {
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block, _ := pem.Decode(publicKey)
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if block == nil {
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return nil, errors.New("public key error")
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}
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pubInterface, err := x509.ParsePKIXPublicKey(block.Bytes)
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if err != nil {
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return nil, err
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}
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pub := pubInterface.(*rsa.PublicKey)
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return rsa.EncryptPKCS1v15(rand.Reader, pub, value)
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}
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// DecryptRSA rsa解密
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func DecryptRSA(ciphertext, privateKey []byte) ([]byte, error) {
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block, _ := pem.Decode(privateKey)
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if block == nil {
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return nil, errors.New("private key error")
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}
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priv, err := x509.ParsePKCS1PrivateKey(block.Bytes)
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if err != nil {
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return nil, err
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}
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return rsa.DecryptPKCS1v15(rand.Reader, priv, ciphertext)
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}
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