1 of 24

Bulleton

presented by

Asia God Ton

2 of 24

Anonymous

Chat

3 of 24

Anonymous

Chat

4 of 24

5 of 24

Is it really anonymous?

6 of 24

2. 我真的很想知道發文者是誰,我可以找小天使查詢嗎?

Dcard 不會查詢或透露任何使用者資料給非檢調機關的第三單位,請恕我們無法協助調閱。

2. I'm really curious about the identity of the poster; can I inquire with customer service?

Dcard will not disclose any user information to third parties that are not investigative authorities. We're sorry, but we can't assist with that request.

7 of 24

user

server

Anonymous Board

100.xxx.xxx.xxx

8 of 24

Have any Solutions?

9 of 24

YES

10 of 24

11 of 24

Zero-knowledge proof

12 of 24

Zero-knowledge proof

is a cryptographic concept.

The prover can validate truth without disclosing key details.

13 of 24

Prover

Verifier

14 of 24

Prover

Verifier

15 of 24

Prover

Verifier

16 of 24

Prover

Verifier

17 of 24

Prover

Verifier

18 of 24

Prover

Verifier

19 of 24

Validation Criteria

Completeness

Any accurate statement can be proven by the prover to the verifier.

Soundness

The prover can't convince the verifier of a false statement.

Zero-Knowledge

No meaningful information is exchanged during the protocol.x

20 of 24

user

Smart contract

Contract

I know this person is on the user list, but I can't determine who they are.

21 of 24

DEMO

22 of 24

Team

23 of 24

Technology will bring real freedom,

we are developing the future right now.

Thank you.

24 of 24

Support wallets

OpenMask — browser extension

MyTonWallet — browser extension