Question 1 Blockchain-Enabled SIM Cards
Recently, Conflux announced its partnership with China Telecom to develop Blockchainenabled SIM cards [1].
1.1 What is a blockchain-enabled SIM card?
1.2 What are the advantages of blockchain-enabled SIM card? What challenges does it address?
1.3 In your opinion, are there are alternatives to blockchain-enabled SIM card?
[1] https://twitter.com/Conflux_Network/status/1625816812092026880
Question 2 Comparison of DigiCash and Blockchain-Based Cryptocurrencies.
Give a 1-page report comparing the first electronic cash system, DigiCash, and blockchainbased cryptocurrencies such as Bitcoin. The following references are provided as a starting point. You are encouraged to look for additional information.
[Cha82] David Chaum. Blind Signatures for Untraceable Payments. Available at:
http://www.hit.bme.hu/~buttyan/courses/BMEVIHIM219/2009/Chaum.BlindSigForPaymen
t.1982.PDF
[CFN88] David Chaum, Amos Fiat, and Moni Naor. Untraceable Electronic Cash. Available at:
http://www.wisdom.weizmann.ac.il/~naor/PAPERS/untrace.ps
[Nak08] Satoshi Nakamoto. Bitcoin: A Peer-to-Peer Electronic Cash System. Available at:
https://bitcoin.org/bitcoin.pdf
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