diff --git a/mycrypto/hash.go b/mycrypto/hash.go
index 48d8769..33283ad 100644
--- a/mycrypto/hash.go
+++ b/mycrypto/hash.go
@@ -3,6 +3,7 @@ package mycrypto
 import (
 	"crypto/md5"
 	"crypto/sha1"
+	"crypto/sha256"
 	"encoding/hex"
 )
 
@@ -18,3 +19,9 @@ func Sha1(str string) string {
 	h.Write([]byte(str))
 	return hex.EncodeToString(h.Sum(nil))
 }
+
+func Sha256(str string) string {
+	h := sha256.New()
+	h.Write([]byte(str))
+	return hex.EncodeToString(h.Sum(nil))
+}