This is a third generation of crypstie project, aimed to proved simple and free pastie-like functionaluty without disclosing your data even to the service itself! .
As everybody knows, browsers uses links, URI (former URL) to aŃcess any resource on the web. It contains
protocol, host, path, sometimes a query string, but for us the most important part is a URL hash,
the optional part that comes after the # sign, for example here:
https://crypstie.com/_QHhfaTF9RHr#icVtQnOdVDs4E2t6e+sCTzno9OD4Shz1DIAVw82u8Kk
the part in bold, #icVtQnOdVDs4E2t6e+sCTzno9OD4Shz1DIAVw82u8Kk is a hash. The unique feature
of the hash is that browser never sends it to the http server!. In other word, browser has it but
the server does not!
In the crypstie service we encrypt the data you paste using most secure AES256/128 algorythm using a random, every time new one, unique key, store encrypted data on the server, and encode the key as a hash part in the URL that is copied to the keyboard automatically when you press the key.
This way, whoever has a full URL link, including the hash part, can decrypt it by just opening the link. Crypstie decodes the key, downloades encrypted data off the server and decrypts it. The servier, in turn, never receives the key and deals only with encrypted data. Absolutely safe, no leaks on the service side!
Just remember: whoever has a link, can access your crypstie! Use burn-on-read mode or limit link life time to increase security level even more!
This is a hobby project by Sergey S. Chernov, see also my linkedin profile. It uses kotlin multiplatform technology and is written entirely in kotlin (backend, interface library that works with JVM and JS, and the web interface). It also uses some of ny open-source kotlin libraries:
which I encourage everybody to give a try. The Kotlin Multiplatform and JB Compose for web together look very promising.