TY - GEN
T1 - qBitcoin
T2 - Computing Conference, 2018
AU - Ikeda, Kazuki
N1 - Publisher Copyright:
© Springer Nature Switzerland AG 2019.
PY - 2019
Y1 - 2019
N2 - A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense. Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. Therefore, a payment can be completed much faster than Bitcoin. Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin.
AB - A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense. Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. Therefore, a payment can be completed much faster than Bitcoin. Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin.
KW - Blind quantum computation
KW - Cryptocurrency
KW - Quantum cryptography
KW - Quantum digital signature
KW - Quantum internet
KW - Quantum key distribution
KW - Quantum teleportation
UR - https://www.scopus.com/pages/publications/85057079744
UR - https://www.scopus.com/pages/publications/85057079744#tab=citedBy
U2 - 10.1007/978-3-030-01174-1_58
DO - 10.1007/978-3-030-01174-1_58
M3 - Conference contribution
AN - SCOPUS:85057079744
SN - 9783030011734
T3 - Advances in Intelligent Systems and Computing
SP - 763
EP - 771
BT - Intelligent Computing - Proceedings of the 2018 Computing Conference
A2 - Arai, Kohei
A2 - Kapoor, Supriya
A2 - Bhatia, Rahul
PB - Springer Verlag
Y2 - 10 July 2018 through 12 July 2018
ER -