Entry Rupp:2015:CTM from tissec.bib
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BibTeX entry
@Article{Rupp:2015:CTM,
author = "Andy Rupp and Foteini Baldimtsi and Gesine
Hinterw{\"a}lder and Christof Paar",
title = "Cryptographic Theory Meets Practice: Efficient and
Privacy-Preserving Payments for Public Transport",
journal = j-TISSEC,
volume = "17",
number = "3",
pages = "10:1--10:??",
month = mar,
year = "2015",
CODEN = "ATISBQ",
DOI = "https://doi.org/10.1145/2699904",
ISSN = "1094-9224 (print), 1557-7406 (electronic)",
ISSN-L = "1094-9224",
bibdate = "Fri Mar 27 17:03:46 MDT 2015",
bibsource = "http://portal.acm.org/;
http://www.math.utah.edu/pub/tex/bib/cryptography2010.bib;
http://www.math.utah.edu/pub/tex/bib/tissec.bib",
abstract = "We propose a new lightweight cryptographic payment
scheme for transit systems, called P4R
(Privacy-Preserving Pre-Payments with Refunds), which
is suitable for low-cost user devices with limited
capabilities. Using P4R, users deposit money to obtain
one-show credentials, where each credential allows the
user to make an arbitrary ride on the system. The trip
fare is determined on-the-fly at the end of the trip.
If the deposit for the credential exceeds this fare,
the user obtains a refund. Refund values collected over
several trips are aggregated in a single token, thereby
saving memory and increasing privacy. Our solution
builds on Brands's e-cash scheme to realize the
prepayment system and on Boneh-Lynn-Shacham (BLS)
signatures to implement the refund capabilities.
Compared to a Brands-only solution for transportation
payment systems, P4R allows us to minimize the number
of coins a user needs to pay for his rides and thus
minimizes the number of expensive withdrawal
transactions, as well as storage requirements for the
fairly large coins. Moreover, P4R enables flexible
pricing because it allows for exact payments of
arbitrary amounts (within a certain range) using a
single fast paying (and refund) transaction.
Fortunately, the mechanisms enabling these features
require very little computational overhead. Choosing
contemporary security parameters, we implemented P4R on
a prototyping payment device and show its suitability
for future transit payment systems. Estimation results
demonstrate that the data required for 20 rides consume
less than 10KB of memory, and the payment and refund
transactions during a ride take less than half a
second. We show that malicious users are not able to
cheat the system by receiving a refund that exceeds the
overall deposit minus the overall fare and can be
identified during double-spending checks. At the same
time, the system protects the privacy of honest users
in that transactions are anonymous (except for
deposits) and trips are unlinkable.",
acknowledgement = ack-nhfb,
articleno = "10",
fjournal = "ACM Transactions on Information and System Security",
journal-URL = "http://portal.acm.org/browse_dl.cfm?idx=J789",
}
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10(2)8,
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2(1)65,
2(2)177,
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2(3)269,
2(4)390,
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10(1)3,
10(4)2,
11(1)3,
11(1)4,
11(2)2,
11(2)4,
11(2)5,
11(3)12,
11(3)13,
11(3)15,
11(3)16,
11(4)19,
11(4)20,
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14(4)28,
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15(2)10,
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15(3)13,
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11(1)2,
11(2)5,
11(3)12,
11(3)14,
11(3)15,
12(1)1,
12(1)2,
12(1)5,
12(1)6,
12(2)8,
12(2)9,
12(2)13,
12(3)16,
12(3)18,
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13(1)10,
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9(2)181,
10(3)9,
11(4)18,
11(4)19,
12(3)18,
13(4)37,
14(1)14,
15(1)3,
16(4)15,
18(1)4
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13(4)34,
17(3)9
- overall,
11(4)20
- overhead,
2(3)269,
11(2)5,
11(4)18,
11(4)23,
12(2)8,
12(3)14,
13(3)25,
14(1)5,
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16(1)1,
16(2)6,
16(2)7,
16(3)9,
16(3)11,
17(4)15,
18(3)11,
18(4)12
- Paar, Christof,
16(3)10
- parameter,
9(4)461,
10(4)5,
11(3)13,
12(1)2,
15(1)5,
18(2)5
- pay,
9(4)461,
11(4)19
- payment,
18(1)2
- practice,
2(1)34,
2(1)65,
11(2)3,
11(3)16,
11(4)17,
12(2)8,
12(3)16,
13(4)34,
14(4)31,
16(2)8,
17(2)6,
17(4)15
- Preserving, Privacy-,
11(2)6,
18(3)10
- pricing,
18(2)5
- privacy,
1(1)66,
2(4)390,
7(2)319,
10(3)12,
11(2)3,
11(2)6,
11(3)16,
12(1)6,
12(2)8,
12(2)9,
12(3)16,
12(4)21,
13(1)7,
13(2)16,
13(3)22,
13(3)24,
13(4)39,
14(1)4,
14(3)26,
14(4)29,
14(4)30,
14(4)31,
15(2)7,
15(3)12,
16(3)11,
16(3)12,
17(1)3,
18(1)2,
18(4)12
- Privacy-Preserving,
11(2)6,
18(3)10
- propose,
1(1)26,
2(1)65,
2(2)138,
2(3)269,
9(2)162,
9(4)391,
9(4)421,
10(1)3,
10(1)4,
10(3)12,
10(4)1,
10(4)3,
10(4)4,
10(4)6,
11(1)3,
11(1)4,
11(3)12,
11(3)15,
11(4)18,
11(4)19,
11(4)23,
12(1)4,
12(2)8,
12(2)11,
12(2)13,
12(3)18,
13(3)28,
13(4)32,
13(4)36,
13(4)40,
13(4)41,
14(1)5,
14(1)10,
14(1)11,
14(3)24,
14(3)26,
14(4)30,
15(2)7,
15(4)17,
16(1)2,
16(4)15,
16(4)16,
17(1)1,
17(3)11,
17(3)12,
17(4)13,
17(4)14,
18(1)2,
18(2)7
- protect,
2(3)332,
11(1)3,
12(3)15,
13(3)22,
13(3)28,
13(4)32,
15(4)18,
16(1)1,
16(2)6,
17(1)4,
18(1)1
- public,
1(1)66,
2(2)138,
2(3)230,
4(4)453,
7(1)21,
10(3)10,
11(2)4,
11(3)16,
12(1)3,
12(3)16,
12(3)18,
12(4)22,
16(4)15,
17(2)5
- range,
2(1)65,
11(2)5,
12(3)14,
16(4)14,
16(4)17
- realize,
10(1)3
- receiving,
14(4)30,
15(2)6
- require,
2(3)269,
10(1)2,
11(1)3,
11(2)2,
11(4)22,
12(1)3,
12(1)6,
12(3)16,
12(4)20,
13(3)20,
13(3)21,
13(4)29,
13(4)33,
13(4)35,
13(4)40,
14(1)2,
14(3)27,
15(2)6,
15(4)16,
16(4)13,
17(2)5,
17(3)9,
17(4)16,
18(1)2,
18(4)13
- required,
7(2)319,
10(2)5,
11(2)3,
11(3)15,
11(3)16,
12(1)6,
12(2)8,
12(3)16,
13(3)22,
13(4)29,
14(4)29,
16(4)15,
17(4)16,
18(3)11
- requirements,
2(2)177,
2(3)295,
10(2)7,
11(1)4,
12(1)1,
12(1)5,
12(2)8,
13(3)20,
13(3)22,
15(2)6,
15(3)13,
16(1)4,
18(1)3,
18(4)13
- result,
1(1)3,
1(1)26,
2(3)230,
2(4)390,
9(2)162,
10(1)3,
10(1)4,
10(2)5,
10(2)6,
10(3)9,
10(3)11,
10(4)2,
10(4)5,
11(2)3,
11(2)5,
11(3)13,
11(3)15,
11(4)18,
11(4)20,
11(4)21,
11(4)22,
12(1)4,
12(2)9,
12(3)14,
12(3)17,
13(1)10,
13(3)22,
13(3)24,
13(3)25,
13(4)33,
13(4)35,
14(1)2,
14(1)14,
14(2)19,
15(1)5,
15(2)7,
15(2)8,
15(3)12,
15(3)13,
15(3)14,
15(4)15,
16(1)2,
16(1)3,
16(2)5,
16(2)6,
16(2)7,
16(3)10,
16(3)11,
16(4)14,
16(4)17,
17(2)7,
17(3)9,
17(3)12,
17(4)14,
18(1)4,
18(2)5,
18(2)6,
18(3)9,
18(3)11,
18(4)12,
18(4)13
- same,
2(2)177,
2(3)269,
2(4)390,
10(1)3,
10(1)4,
11(2)3,
12(2)10,
12(3)18,
12(4)21,
13(1)10,
13(3)25,
13(4)31,
15(1)3,
15(2)7,
15(2)10,
15(4)16,
17(4)15,
18(1)1
- saving,
12(1)3
- scheme,
7(2)206,
7(4)523,
8(2)228,
9(3)325,
9(4)461,
10(4)5,
11(2)4,
11(2)5,
11(3)14,
11(3)15,
11(4)18,
11(4)22,
12(1)2,
12(1)3,
12(2)9,
12(3)15,
12(3)16,
12(3)18,
13(4)29,
13(4)31,
13(4)37,
13(4)41,
14(1)5,
15(2)9,
15(4)18,
17(2)6,
17(4)14,
17(4)15
- second,
9(2)181,
9(4)461,
11(2)3,
11(2)6,
11(4)22,
12(1)3,
12(1)5,
12(2)11,
13(4)31,
13(4)37,
16(3)9,
16(3)10,
16(3)12,
18(3)9
- several,
1(1)93,
2(1)65,
2(2)138,
2(3)230,
2(3)295,
10(1)2,
10(1)4,
10(2)6,
10(2)7,
10(3)12,
10(4)6,
11(1)4,
11(2)4,
11(4)17,
12(2)8,
12(4)20,
13(3)27,
13(4)30,
13(4)39,
13(4)41,
14(3)27,
14(4)29,
14(4)31,
15(2)6,
15(2)10,
16(3)12,
17(1)4,
17(3)9,
18(1)1
- signature,
3(3)161,
7(1)1,
12(1)3,
12(2)11,
12(3)15,
13(4)37,
14(1)4,
14(1)5,
15(2)9
- single,
2(2)177,
2(4)354,
10(1)4,
10(3)11,
10(4)1,
10(4)2,
11(1)4,
11(2)5,
12(3)18,
13(1)10,
14(1)3,
15(1)4,
17(4)16
- solution,
9(2)162,
10(4)1,
11(1)2,
11(1)4,
11(4)20,
12(1)3,
12(1)6,
12(3)16,
12(3)18,
12(4)21,
13(3)22,
13(3)25,
13(3)27,
13(3)28,
15(2)7,
16(2)6,
16(3)11,
17(1)4,
17(3)9,
17(3)11,
18(1)1,
18(1)3
- spending, double-,
18(1)2
- storage,
2(3)295,
2(4)354,
9(1)1,
10(4)3,
11(1)4,
12(1)3,
12(3)15,
12(3)16,
12(3)18,
13(3)22,
13(4)30,
13(4)37,
14(1)12,
14(2)20,
15(2)6,
15(2)9,
16(3)12,
17(4)15
- suitable,
2(3)230,
2(4)354,
10(4)5,
11(4)22,
12(1)3,
12(3)15,
15(2)9
- take,
2(4)416,
10(4)1,
12(3)17,
12(3)19,
12(4)22,
13(3)20,
16(2)5,
16(3)9,
16(3)10,
16(4)15,
18(1)4,
18(2)5,
18(4)12
- than,
2(1)3,
2(1)65,
2(3)332,
9(4)391,
9(4)461,
10(1)4,
11(2)3,
11(2)6,
11(3)14,
12(1)1,
12(2)10,
12(3)16,
12(4)22,
13(1)10,
13(3)21,
13(4)29,
13(4)31,
13(4)35,
14(3)27,
14(4)31,
15(1)5,
15(2)9,
15(2)10,
15(4)15,
15(4)16,
16(2)8,
16(4)17,
17(1)2,
17(3)9,
17(3)12,
17(4)14,
17(4)16,
18(4)13
- the-fly, on-,
13(4)34,
17(3)9
- theory,
2(1)3,
2(1)105,
2(3)332,
13(4)40,
14(4)31,
16(1)4,
16(4)16,
16(4)17
- thereby,
2(1)105,
9(4)391,
11(1)2,
12(2)11,
14(1)3,
14(1)14
- thus,
2(2)138,
10(3)12,
10(4)5,
13(3)20,
14(1)12,
14(3)26,
14(3)27,
15(1)4,
16(2)7,
17(3)11,
18(1)1,
18(4)13
- time,
2(1)105,
2(3)332,
2(4)390,
2(4)416,
9(4)461,
10(1)3,
10(2)8,
11(2)3,
11(2)4,
11(2)5,
11(3)13,
11(4)17,
11(4)20,
11(4)21,
11(4)23,
12(2)8,
12(3)17,
12(3)18,
12(3)19,
12(4)20,
12(4)21,
12(4)22,
13(4)37,
13(4)39,
14(1)2,
14(1)11,
14(1)14,
14(3)26,
14(4)31,
15(2)7,
15(3)12,
15(4)17,
16(1)4,
16(4)13,
16(4)14,
16(4)17,
17(3)9,
17(3)11,
17(4)13,
18(1)2,
18(1)4,
18(3)10
- token,
7(3)333,
11(1)2,
17(2)6,
18(3)9
- transaction,
1(1)26,
1(1)66,
2(4)354,
4(4)321,
13(3)20,
18(1)2
- Transport,
15(1)3
- unlinkable,
2(4)354
- using,
2(2)138,
2(2)177,
2(3)332,
4(3)289,
6(2)258,
6(3)327,
9(2)113,
9(2)162,
9(2)181,
9(3)292,
9(3)325,
9(4)461,
10(1)4,
10(2)8,
10(3)11,
10(4)3,
10(4)6,
11(1)2,
11(2)1,
11(2)2,
11(2)3,
11(3)14,
11(4)19,
11(4)21,
12(2)10,
12(2)11,
13(1)2,
13(1)8,
13(3)20,
13(3)26,
13(4)31,
13(4)35,
13(4)39,
14(1)3,
14(1)12,
14(1)14,
14(3)27,
15(1)2,
15(3)11,
15(3)12,
15(4)15,
15(4)17,
16(1)1,
16(1)2,
16(1)4,
16(2)5,
16(2)6,
16(3)10,
16(4)17,
17(1)1,
17(2)5,
17(3)11,
17(4)13,
17(4)14,
17(4)16,
18(2)7,
18(2)8,
18(3)10,
18(3)11,
18(4)14
- value,
10(3)10,
10(4)1,
10(4)4,
11(2)5,
11(4)18,
12(1)6,
12(2)10,
13(1)10,
14(1)9,
14(1)14,
15(1)4,
15(2)9,
15(4)17,
16(1)1,
18(1)1,
18(2)5,
18(3)10
- very,
1(1)3,
2(1)65,
2(3)269,
10(4)1,
11(2)5,
11(3)14,
11(4)18,
13(3)22,
13(3)27,
14(1)2,
15(1)2,
15(3)12,
16(1)1,
16(3)11,
16(4)13,
17(4)15,
17(4)16,
18(2)7,
18(3)11,
18(4)12,
18(4)14
- well,
1(1)93,
10(1)2,
10(2)8,
10(3)11,
10(3)12,
11(1)3,
11(1)4,
11(2)5,
11(3)15,
12(1)1,
12(1)3,
12(1)5,
12(2)10,
13(1)10,
13(3)26,
14(1)3,
14(1)5,
14(1)14,
14(3)23,
15(3)12,
15(4)15,
15(4)16,
15(4)18,
16(2)8,
17(3)9,
17(3)11,
18(1)3,
18(2)5
- where,
2(3)230,
9(4)461,
10(4)4,
10(4)5,
10(4)6,
11(3)12,
11(3)13,
11(4)19,
12(1)3,
12(3)15,
12(3)16,
12(4)20,
13(3)20,
13(3)22,
13(4)33,
13(4)37,
14(1)7,
15(2)6,
15(3)12,
15(3)13,
16(1)4,
16(2)5,
17(4)16,
18(1)2,
18(2)8