dorsal/arxiv
View SchemaMaking An Empty Promise With A Quantum Computer
| Authors | H. F. Chau, H. -K. Lo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9709053 |
| URL | https://arxiv.org/abs/quant-ph/9709053 |
| DOI | 10.1002/(SICI)1521-3978(199806)46:4/5<507::AID-PROP507>3.0.CO;2-4 |
| Journal | Fortsch.Phys. 46 (1998) 507-520 |
Abstract
Alice has made a decision in her mind. While she does not want to reveal it to Bob at this moment, she would like to convince Bob that she is committed to this particular decision and that she cannot change it at a later time. Is there a way for Alice to get Bob's trust? Until recently, researchers had believed that the above task can be performed with the help of quantum mechanics. And the security of the quantum scheme lies on the uncertainty principle. Nevertheless, such optimism was recently shattered by Mayers and by us, who found that Alice can always change her mind if she has a quantum computer. Here, we survey this dramatic development and its implications on the security of other quantum cryptographic schemes.
{
"annotation_id": "c3feb463-894b-4883-a984-6d443774796a",
"date_created": "2026-03-02T18:02:40.576000Z",
"date_modified": "2026-03-02T18:02:40.576000Z",
"file_hash": "c461507ebd4481472353b9154618e95c37956cad80ff940ff47deae8bceaad58",
"private": false,
"record": {
"abstract": "Alice has made a decision in her mind. While she does not want to reveal it\nto Bob at this moment, she would like to convince Bob that she is committed to\nthis particular decision and that she cannot change it at a later time. Is\nthere a way for Alice to get Bob\u0027s trust? Until recently, researchers had\nbelieved that the above task can be performed with the help of quantum\nmechanics. And the security of the quantum scheme lies on the uncertainty\nprinciple. Nevertheless, such optimism was recently shattered by Mayers and by\nus, who found that Alice can always change her mind if she has a quantum\ncomputer. Here, we survey this dramatic development and its implications on the\nsecurity of other quantum cryptographic schemes.",
"arxiv_id": "quant-ph/9709053",
"authors": [
"H. F. Chau",
"H. -K. Lo"
],
"categories": [
"quant-ph"
],
"doi": "10.1002/(SICI)1521-3978(199806)46:4/5\u003c507::AID-PROP507\u003e3.0.CO;2-4",
"journal_ref": "Fortsch.Phys. 46 (1998) 507-520",
"title": "Making An Empty Promise With A Quantum Computer",
"url": "https://arxiv.org/abs/quant-ph/9709053"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "718d71b4-972d-4080-824d-c89e0e13016c",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}