# Media balajis.com @balajis · Jun 11 Replying to @matthew\_d\_green Yes. But here’s a possibly dumb workaround: 1\) A listens for events on chain 2) B sends a decryption request for resource to A’s address 3) A returns decrypted version, re-encrypted with B’s public key, if in a valid time window Sort of like multisig with restrictions? stephen tse | s.one @stse · Jul 3 smartotp by @IHomoliak has a research paper & a prototype - with a wallet for private keys "keyless wallet" by @dionyziz has a theoretical result assuming witness encryption our @1wallet\_ by @polymorpher has a mainnet demo with hardened client security {% embed url="" %} nick.eth @nicksdjohnson · Jun 11 Replying to @AutismCapital 2FA only works when you have a central service that controls access to your data. The wallet equivalent of 2FA is a hardware wallet. stephen tse | s.one @stse · Jul 4 why can't public and decentralized platforms do 2fa services? {% embed url="" %} Pedro Gomes 🦇🔊📲 @pedrouid · Feb 13 Replying to @zmanian I think it’s also due to user demand A pure wallet would essentially just display different signing authorization screens without a specific use-case Cryptocurrency wallets on the other hand transfer funds, show balances, etc stephen tse | s.one @stse · Jul 4 how about separating wallets from authenticator? with one-time-password (otp) like google auth {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.harmony.one/home/general/ecosystem/dapps/media.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.