diff --git a/captcha.go b/captcha.go
index 1014f24..d4468dd 100644
--- a/captcha.go
+++ b/captcha.go
@@ -8,6 +8,6 @@ import (
 
 type Captcha interface {
 	HttpMiddleware(container *do.Injector) func(next http.Handler) http.Handler
-	Verify(id, answer string, clear bool) error
-	Generate(captchaUuid string) (id, answer string)
+	Verify(answer, salt string, clear bool) error
+	Generate(captchaUuid string, u User) (answer, salt string)
 }