Creat Service BPJS

internal/helpers/bpjs/pkcs7.go

@@ -0,0 +1,25 @@
+package helper
+
+import "errors"
+
+func Pad(buf []byte, size int) ([]byte, error) {
+	bufLen := len(buf)
+	padLen := size - bufLen%size
+	padded := make([]byte, bufLen+padLen)
+	copy(padded, buf)
+	for i := 0; i < padLen; i++ {
+		padded[bufLen+i] = byte(padLen)
+	}
+	return padded, nil
+}
+
+func Unpad(padded []byte, size int) ([]byte, error) {
+	if len(padded)%size != 0 {
+		return nil, errors.New("pkcs7: Padded value wasn't in correct size.")
+	}
+
+	bufLen := len(padded) - int(padded[len(padded)-1])
+	buf := make([]byte, bufLen)
+	copy(buf, padded[:bufLen])
+	return buf, nil
+}