Patent US3976622B1 successfully refreshed from Google Patents.
Patent EP0956818A1 successfully refreshed from Google Patents.
EP0956818A1
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System and method of biometric smart card user authentication
Assignee: Citicorp Development Center Inc
•
Filing: 1999-05-10
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Granted: —
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Expires: 2019-05-10
Abstract
Abstract A system and method for authenticating a smart card user (54) at a reader device (64) makes use of an application (58) on a smart card microprocessor (60) on which information fields (56) relating to biometric information for the user and a table of predefined probability of occurrence values for user authentication is stored. The smart card (62) and a biometric sample for the user is presented to the reader device (64), and an application associated with the reader device automatically authenticates the user base on a match level between the stored biometric information and the presented biometric sample according to a desired probability of occurrence value from the stored table. Alternatively, the user (54) is automatically authenticated by an application (58) on the smart card microprocessor (60). The reader device reads the presented biometric sample, automatically presents what is read to the smart card application, and the smart card application then authenticates the user according to the threshold match score from the stored table that corresponds to the desired probability of occurrence value.
Inventors
- 👤 Philip C. Shinn
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 10:04
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/401; G06Q20/4014; G06Q20/40145; G06V; G06V40/00; G06V40/50; G06V40/55; G06V40/58; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/257
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
93 words
A method of authenticating a smart card user at a reader device,
comprising: storing information fields for the user on the smart card relating to
biometric information for the user and a table of pre-defined probability of
occurrence values for user authentication; presenting the smart card and a biometric sample for the user to the
reader device; and automatically authenticating the user based at least in part on a
match level between the stored biometric information and the presented biometric
sample according to a desired probability of occurrence value from the stored
table.
Claim 2
Dependent Claim
27 words
The method of claim 1, wherein storing the information fields
relating to the biometric information for the user further comprises storing a
biometric template for the user.
Claim 3
Dependent Claim
44 words
The method of claim 2, wherein storing the biometric template
further comprises storing at least one model of biometric patterns for the user
selected from a group of biometric patterns consisting of voice print, photograph,
signature, fingerprint, hand geometry, retinal image, and iris scan.
Claim 4
Dependent Claim
42 words
The method of claim 1, wherein storing the information fields
relating to the table of pre-defined probability of occurrence values for user
authentication further comprises automatically assigning a probability of
occurrence value to each of a plurality of pre-defined range limit values.
Claim 5
Dependent Claim
35 words
The method of claim 4, wherein automatically assigning the
probability of occurrence values further comprises automatically identifying the
range limit values for each of a plurality of value ranges of biometric reader
device match scores.
Claim 6
Dependent Claim
45 words
The method of claim 5, wherein automatically identifying the range
limit values further comprises automatically tabulating a performance histogram
distribution of biometric reader device match scores for false acceptance of an
impostor and false rejection of a valid user into the plurality of value ranges.
Claim 7
Dependent Claim
30 words
The method of claim 6, wherein automatically tabulating the
performance histogram distribution further comprises automatically quantifying
the performance histogram distribution into discrete levels of the biometric reader
device match scores.
Claim 8
Dependent Claim
34 words
The method of claim 7, wherein automatically tabulating the
performance histogram distribution further comprises automatically assigning the
probability of occurrence value for each of the discrete levels of the biometric
reader device match scores.
Claim 9
Dependent Claim
22 words
The method of claim 1, wherein storing the information fields
further comprises storing personal data for the user on the smart card.
Claim 10
Dependent Claim
24 words
The method of claim 1, wherein storing information fields further
comprises storing information related to identification of a biometric system on
the smart card.
Claim 11
Dependent Claim
21 words
The method of claim 1, wherein storing the information fields
further comprises storing a hashed data field on the smart card.
Claim 12
Dependent Claim
23 words
The method of claim 1, wherein storing the information fields
further comprises storing the information fields in an application on the smart
card.
Claim 13
Dependent Claim
29 words
The method of claim 12, wherein storing the information fields in
the application further comprises storing the information fields in an application
on a microprocessor of the smart card.
Claim 14
Dependent Claim
24 words
The method of claim 1, wherein presenting the smart card further
comprises presenting the smart card to the reader device associated with a
terminal.
Claim 15
Dependent Claim
60 words
The method of claim 14, wherein the terminal further comprises at
least one of an area access terminal, a computer network terminal, a computer
access terminal, a stored value terminal, a monetary access terminal, a PBX
terminal, a long distance terminal, a personal computer, a laptop computer, a
personal digital assistant, a public internet terminal, and an automated teller
machine.
Claim 16
Dependent Claim
24 words
The method of claim 1, wherein presenting the biometric sample
further comprises presenting the biometric sample to the reader device associated
with a terminal.
Claim 17
Dependent Claim
60 words
The method of claim 16, wherein the terminal further comprises at
least one of an area access terminal, a computer network terminal, a computer
access terminal, a stored value terminal, a monetary access terminal, a PBX
terminal, a long distance terminal, a personal computer, a laptop computer, a
personal digital assistant, a public internet terminal, and an automated teller
machine.
Claim 18
Dependent Claim
39 words
The method of claim 1, wherein presenting the biometric sample
further comprises presenting at least one biometric sample selected from a group
of biometric samples consisting of voice print, photograph, signature, fingerprint,
hand geometry, retinal image, and iris scan.
Claim 19
Dependent Claim
17 words
The method of claim 1, wherein automatically authenticating
further comprises pre-selecting the desired probability of occurrence value.
Claim 20
Dependent Claim
35 words
The method of claim 19, wherein pre-selecting the desired
probability of occurrence value further comprises pre-defining a desired
probability of occurrence value for false acceptance of an impostor and false
rejection of a valid user.
Claim 21
Dependent Claim
59 words
The method of claim 20, wherein pre-defining the desired
probability of occurrence value further comprises pre-defining an instruction set
directing the reader device to look to the stored table of probability of occurrence
values for a false acceptance of an impostor and false rejection of a valid user
threshold match score corresponding to the desired probability of occurrence
value.
Claim 22
Dependent Claim
70 words
The method of claim 21, wherein automatically authenticating
further comprises automatically selecting the false acceptance of an impostor and
false rejection of a valid user threshold match score, such that for a desired false
acceptance rate, a match value between the stored biometric information and the
biometric sample is at least a pre-determined level, and for a desired false
rejection rate, the match value is less than a pre-determined level.
Claim 23
Dependent Claim
22 words
The method of claim 1, wherein automatically authenticating
further comprise automatically authenticating the user by an application
associated with the reader device.
Claim 24
Dependent Claim
26 words
The method of claim 23, wherein automatically authenticating
further comprises automatically authenticating the user by an application residing
at least in part on the reader device.
Claim 25
Dependent Claim
30 words
The method of claim 23, wherein automatically authenticating
further comprising automatically authenticating the user by an application
residing at least in part on a terminal associated with the reader device.
Claim 26
Dependent Claim
22 words
The method of claim 1, wherein automatically authenticating
further comprises automatically authenticating the user by an application
associated with the smart card.
Claim 27
Dependent Claim
26 words
The method of claim 26, wherein automatically authenticating
further comprises automatically authenticating the user by an application residing
at least in part on the smart card.
Claim 28
Independent Claim
103 words
A system for authenticating a smart card user at a reader device,
comprising: means for storing information fields for the user on the smart card
relating to biometric information for the user and a table of pre-defined
probability of occurrence values for user authentication; means for presenting the smart card and a biometric sample for the
user to the reader device; means associated for automatically authenticating the user by the
reader device based at least in part on a match level between the stored biometric
information and the presented biometric sample according to a desired probability
of occurrence value from the stored table.
Claim 29
Dependent Claim
21 words
The system of claim 28, wherein the means for storing the
information fields further comprises an application on the smart card.
Claim 30
Dependent Claim
23 words
The system of claim 29, wherein the application on the smart card
further comprises an application on a microprocessor of the smart card.
Claim 31
Dependent Claim
26 words
The system of claim 30, wherein the means for presenting the smart
card and the biometric sample further comprises a reader device associated with a
terminal.
Claim 32
Dependent Claim
26 words
The system of claim 31, wherein the means for presenting the smart
card and the biometric sample further comprises an application associated with
the reader device.
Claim 33
Dependent Claim
60 words
The system of claim 32, wherein the terminal further comprises at
least one of an area access terminal, a computer network terminal, a computer
access terminal, a stored value terminal, a monetary access terminal, a PBX
terminal, a long distance terminal, a personal computer, a laptop computer, a
personal digital assistant, a public internet terminal, and an automated teller
machine.
Claim 34
Dependent Claim
22 words
The system of claim 28, wherein the means for automatically
authenticating the user further comprises an application associated with the reader
device.
Claim 35
Dependent Claim
14 words
The system of claim 34, wherein the reader device is associated
with a terminal.
Claim 36
Dependent Claim
72 words
The system of claim 35, wherein the terminal further comprises at
least one of an area access terminal, a computer network terminal, a computer
access terminal, a stored value terminal, a monetary access terminal, a computer
access terminal, a stored value terminal, a monetary access terminal, a PBX
terminal, a long distance terminal, a personal computer, a laptop computer, a
personal digital assistant, a public internet terminal and an automated teller
machine.
Claim 37
Dependent Claim
20 words
The system of claim 28, wherein the means for automatically
authenticating further comprises an application associated with the smart card.
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US5111512A
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EP0612035A1
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WO1996013800A1
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