enhance(spiral):调整螺旋加密算法的默认强度。

encryption/spiral/spiral.go

@@ -29,7 +29,7 @@ func generateKey(key string) []byte {
 // 对给定的数据进行加密。
 func Encrypt(data string, strength ...Strength) (string, error) {
 	var ivGen aes.IVGenerator
-	if append(strength, Compatible)[0] == Compatible {
+	if append(strength, Enhanced)[0] == Compatible {
 		ivGen = aes.PrefixIVGenerator
 	} else {
 		ivGen = aes.XorIVGenerator
@@ -50,7 +50,7 @@ func Encrypt(data string, strength ...Strength) (string, error) {
 // 对给定的数据进行解密。
 func Decrypt(data string, strength ...Strength) (string, error) {
 	var ivGen aes.IVGenerator
-	if append(strength, Compatible)[0] == Compatible {
+	if append(strength, Enhanced)[0] == Compatible {
 		ivGen = aes.PrefixIVGenerator
 	} else {
 		ivGen = aes.XorIVGenerator