How to do, flutter dart conversion: “test” to “C8-05-9E-2E-C7-41-9F-59-0E-79-D7-F1-B7-74-BF-E6”?

Question

I have access to db on windows server. When I write passwords from table (C8-05-9E-2E-C7-41-9F-59-0E-79-D7-F1-B7-74-BF-E6), it is cool and all work fine (login). <---- F