TY - GEN
T1 - CLUE: Towards discovering locked cryptocurrencies in ethereum
AU - Li, Xiaoqi
AU - Chen, Ting
AU - Luo, Xiapu
AU - Wang, Chenxu
N1 - Publisher Copyright:
© 2021 Owner/Author.
PY - 2021/3/22
Y1 - 2021/3/22
N2 - As the most popular blockchain that supports smart contracts, there are already more than 296 thousand kinds of cryptocurrencies built on Ethereum. However, not all cryptocurrencies can be controlled by users. For example, some money is permanently locked in wallets' accounts due to attacks. In this paper, we conduct the first systematic investigation on locked cryptocurrencies in Ethereum. In particular, we define three categories of accounts with locked cryptocurrencies and develop a novel tool named Clue to discover them. Results show that there are more than 216 million dollars value of cryptocurrencies locked in Ethereum. We also analyze the reasons (i.e., attacks/behaviors) why cryptocurrencies are locked. Because the locked cryptocurrencies can never be controlled by users, avoid interacting with the accounts discovered by Clue and repeating the same mistakes again can help users to save money.
AB - As the most popular blockchain that supports smart contracts, there are already more than 296 thousand kinds of cryptocurrencies built on Ethereum. However, not all cryptocurrencies can be controlled by users. For example, some money is permanently locked in wallets' accounts due to attacks. In this paper, we conduct the first systematic investigation on locked cryptocurrencies in Ethereum. In particular, we define three categories of accounts with locked cryptocurrencies and develop a novel tool named Clue to discover them. Results show that there are more than 216 million dollars value of cryptocurrencies locked in Ethereum. We also analyze the reasons (i.e., attacks/behaviors) why cryptocurrencies are locked. Because the locked cryptocurrencies can never be controlled by users, avoid interacting with the accounts discovered by Clue and repeating the same mistakes again can help users to save money.
KW - cryptocurrency
KW - distributed system security
KW - ethereum
UR - http://www.scopus.com/inward/record.url?scp=85104977453&partnerID=8YFLogxK
U2 - 10.1145/3412841.3442130
DO - 10.1145/3412841.3442130
M3 - Conference article published in proceeding or book
AN - SCOPUS:85104977453
T3 - Proceedings of the ACM Symposium on Applied Computing
SP - 1584
EP - 1587
BT - Proceedings of the 36th Annual ACM Symposium on Applied Computing, SAC 2021
PB - Association for Computing Machinery
T2 - 36th Annual ACM Symposium on Applied Computing, SAC 2021
Y2 - 22 March 2021 through 26 March 2021
ER -