JP2021051539A - IC card control method and IC card - Google Patents

IC card control method and IC card Download PDF

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JP2021051539A
JP2021051539A JP2019174000A JP2019174000A JP2021051539A JP 2021051539 A JP2021051539 A JP 2021051539A JP 2019174000 A JP2019174000 A JP 2019174000A JP 2019174000 A JP2019174000 A JP 2019174000A JP 2021051539 A JP2021051539 A JP 2021051539A
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card
biometric information
information
authentication
biometric
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哲司 石田
Tetsuji Ishida
哲司 石田
之治 浅野
Yukiharu Asano
之治 浅野
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

To provide authentication means using an IC card with a biometric authentication function that can be executed without changing a transaction procedure conforming to a conventional EMV (Europay, Mastercard, and Visa) standard, by automatically switching to PIN verification or signature authentication according to a biometric information authentication result when using the IC card.SOLUTION: An IC card control method, which automatically determines settlement means according to a user biometric information provision state when using an IC card with biometric authentication function, includes "security policy compliant call information" that makes, at least for each of a case where biometric information is not used, a case where collation using the biometric information has succeeded, and a case where the collation using the biometric information has failed, settlements with different security levels, and performs settlement processing in accordance with EMV standards in response to the security levels.SELECTED DRAWING: Figure 1

Description

本発明は生体認証機能付きＩＣカードの制御方法に関する。 The present invention relates to a method for controlling an IC card with a biometric authentication function.

現在、市場でのＩＣカード利用における本人確認は「ＰＩＮ照合」と「署名」で行わ
れている。これに対して安全性と利便性を共に向上する目的で、ＰＩＮ照合に加えて利用者固有の生体情報認証による本人確認を行う提案がなされている（下記特許文献１）。 Currently, identity verification when using an IC card in the market is performed by "PIN verification" and "signature". On the other hand, for the purpose of improving both safety and convenience, a proposal has been made to verify the identity by user-specific biometric information authentication in addition to PIN verification (Patent Document 1 below).

しかし上記特許文献１の技術においては、生体情報取得部を備えた決済端末の導入が
必要となり、新たな設備投資が要求されることから、普及の障害になるという課題があった。 However, in the technique of Patent Document 1, it is necessary to introduce a payment terminal equipped with a biometric information acquisition unit, and new capital investment is required, which poses a problem of hindering its widespread use.

それに対して利用者固有の生体情報、例えば指紋など、を取得する機能を有したＩＣ
カードによって、ＩＣカード上で直接生体情報を取得する技術も提案されている。（下記特許文献２）。 On the other hand, an IC having a function of acquiring user-specific biometric information such as a fingerprint.
A technique for directly acquiring biometric information on an IC card using a card has also been proposed. (Patent Document 2 below).

しかし上記特許文献２の技術においては、端末装置から得られた識別情報とＩＣカー
ドに具備された生体情報取得部から得られた生体情報の２つの個別の情報からなる認証手段に対して、一様でない手続が発生することから、ＩＣカードの取り引き手順がＥＭＶ規格に準拠しないため、従来のワークフローに適合せず普及の障害になるという課題があった。 However, in the technique of Patent Document 2, there is one method for an authentication means consisting of two individual pieces of information, that is, the identification information obtained from the terminal device and the biometric information obtained from the biometric information acquisition unit provided on the IC card. Since the procedure for dealing with IC cards does not conform to the EMV standard due to the occurrence of such procedures, there is a problem that it does not conform to the conventional workflow and hinders its widespread use.

また認証方法が複数並列に存在し、これを自由に選択できることから、より安易なＰ
ＩＮによる認証に偏りがちとなり、生体情報による認証が使用されない傾向にあるという課題もあった。 In addition, there are multiple authentication methods in parallel, and this can be freely selected, making P easier.
There is also a problem that authentication by IN tends to be biased and authentication by biometric information tends not to be used.

特開２００８−１７６４３５号公報Japanese Unexamined Patent Publication No. 2008-176435 特開２０１８−１５１７９９号公報JP-A-2018-151799

本発明が解決しようとする課題は、生体認証機能付きＩＣカードによる認証手段を、
ＩＣカード利用時の生体情報認証結果に応じて自動的にＰＩＮ照合または署名による認証に切り替えることで、従来のＥＭＶ（Ｅｕｒｏｐａｙ， Ｍａｓｔｅｒｃａｒｄ， ａｎｄ Ｖｉｓａ）規格に準拠した取り引き手順に変更を加えることなく実行させることが可能なＩＣカードの制御方法を提供することである。 The problem to be solved by the present invention is to provide an authentication means using an IC card with a biometric authentication function.
By automatically switching to PIN verification or signature authentication according to the biometric information authentication result when using an IC card, it can be executed without changing the transaction procedure conforming to the conventional EMV (Europey, Mastercard, and Visa) standard. It is to provide the control method of the IC card which can be made.

上記の課題を解決するための手段として、請求項１に記載の発明は、
生体認証機能付きＩＣカード利用時にユーザ認証およびカード認証のプロセスに先行して、利用者の生体情報提供の状況に応じて決済処理方法を自動的に決定するＩＣカードの制御方法であって、
少なくとも、生体情報を利用しない場合、生体情報を利用して照合が一致した場合、および生体情報を利用して照合が一致しない場合のそれぞれに対して異なるセキュリティレベルの決済を行うための「セキュリティポリシー対応呼出情報」を有し、
生体情報をＩＣカードに読み込ませて生体情報を取得する取得手段と、
生体情報と呼出情報とを記憶する記憶手段と、
生体情報の状況に応じてセキュリティレベルを決める処理手段とを備え、
そのセキュリティレベルに呼応した決済処理を行うことを特徴とするＩＣカードの制御方法である。 The invention according to claim 1 is a means for solving the above problems.
This is an IC card control method that automatically determines the payment processing method according to the status of the user's biometric information provision prior to the user authentication and card authentication process when using an IC card with a biometric authentication function.
At the very least, a "security policy" for making payments with different security levels for cases where biometric information is not used, when collations match using biometric information, and when collations do not match using biometric information. Has "correspondence call information"
An acquisition method for acquiring biometric information by reading biometric information into an IC card,
A storage means for storing biological information and calling information,
It is equipped with a processing means that determines the security level according to the status of biometric information.
This is an IC card control method characterized in that payment processing is performed in response to the security level.

また、請求項２に記載の発明は、
請求項１に記載の制御方法に用いられるＩＣカードであって、
認証に必要な情報を記憶する記憶部と、
生体情報を取得する取得部と、
認証プロセスやデータの処理を行う処理部と、
決済端末などの上位ホストとのデータ通信を行う通信部と、
これらのプロセスを行うために必要な電力を供給する電源部からなり、
これらに加えてセキュリティポリシー対応呼出情報を記憶し、その情報に応じて決済
端末と決済処理をすすめる機能を備えることを特徴とするＩＣカードである。 Further, the invention according to claim 2 is
An IC card used in the control method according to claim 1.
A storage unit that stores information required for authentication,
The acquisition unit that acquires biological information,
A processing unit that processes authentication processes and data,
A communication unit that performs data communication with a higher-level host such as a payment terminal,
It consists of a power supply that supplies the power needed to perform these processes.
In addition to these, the IC card is characterized by having a function of storing security policy-compliant call information and proceeding with a payment terminal and payment processing according to the information.

また、請求項３に記載の発明は、
請求項１または請求項２に記載のＩＣカードであって、
ＥＭＶ規格に準拠して取引決済を行うことのできることを特徴とするＩＣカードである。 Further, the invention according to claim 3 is
The IC card according to claim 1 or 2.
It is an IC card characterized by being able to settle transactions in accordance with the EMV standard.

生体情報による認証に際し、ＩＣカード側だけで生体情報の照合を行えるため、従来
から使用されている決済端末をそのまま利用できることから、新たな設備投資が不要となる。 When authenticating with biometric information, the biometric information can be collated only on the IC card side, so that the payment terminal that has been used conventionally can be used as it is, so that no new capital investment is required.

ＩＣカード側での生体情報照合と、従来からの本人確認方法であるＰＩＮと署名を簡
便に組み合わせる事により安全性を確保することができる。 Security can be ensured by simply combining biometric information verification on the IC card side with PIN and signature, which are conventional identification methods.

生体情報認証を加えても、ＩＣカード側で本人確認を完結させることができることか
ら、ＥＭＶトランザクション違反とならず、現実的な運用が可能となる。 Even if biometric information authentication is added, the identity verification can be completed on the IC card side, so that it does not violate the EMV transaction and realistic operation is possible.

カード利用時セキュリティポリシー選択と決済の流れ図。Flow chart of security policy selection and payment when using a card. カード利用時の概略図。Schematic diagram when using a card. 生体情報取得機能を備えたＩＣカードの概略構成図。Schematic diagram of an IC card having a biological information acquisition function. セキュリティレベルと対応する取引条件を示す表。A table showing the security level and the corresponding trading conditions.

以下に本発明の一実施形態を示す。 An embodiment of the present invention is shown below.

本発明に供されるＩＣカード１００は、従来公知のＩＣカードと同様な構成で良い。
例えば図３に示すように、認証に必要な情報を記憶する記憶部１１０と、生体情報を取得する取得部１２０と、認証プロセスやデータの処理を行う処理部１３０と、決済端末などの上位ホストとのデータ通信を行う通信部１４０からなる。 The IC card 100 used in the present invention may have the same configuration as a conventionally known IC card.
For example, as shown in FIG. 3, a storage unit 110 that stores information necessary for authentication, an acquisition unit 120 that acquires biometric information, a processing unit 130 that processes an authentication process and data, and a higher-level host such as a payment terminal. It is composed of a communication unit 140 that performs data communication with.

上記取得部１２０は利用者固有の生体情報を取得する、例えば指紋センサーを用いる
。生体情報はこれに限らず、静脈パターン、虹彩パターンなど、利用者固有のもので、カードに具備されたセンサーで取得可能なものであればいずれでも構わない。 The acquisition unit 120 uses, for example, a fingerprint sensor to acquire user-specific biometric information. The biological information is not limited to this, and any user-specific information such as a vein pattern and an iris pattern, which can be acquired by the sensor provided on the card, may be used.

また上記記憶部１１０には、複数の、例えば３種類のセキュリティレベル毎に、セキュリティポリシー対応呼出情報（以下「呼出情報」）のセットを予め保持する。 Further, the storage unit 110 previously holds a set of security policy-corresponding call information (hereinafter referred to as “call information”) for each of a plurality of, for example, three types of security levels.

前記セキュリティレベルとは、決済手続の安全性を確保するために、生体情報による本人確認の結果に応じて区分されるもので、生体情報による本人確認を回避した場合を「中」、生体情報による本人確認に成功した場合を「低」、生体情報による本人確認に失敗した場合を「高」とそれぞれ定義する。 The security level is classified according to the result of identity verification by biometric information in order to ensure the security of payment procedures. When identity verification by biometric information is avoided, it is "medium", and it depends on biometric information. The case where the identity verification is successful is defined as "low", and the case where the identity verification by biometric information is unsuccessful is defined as "high".

前記呼出情報とは本人確認方法、決済上限金額、決済方法など、取引決済の手続を進
める上で必要な全ての情報の集合であって、各セキュリティレベルに応じて個別に設定されるものである。図４に示したものはその一例であって、項目、組合せ、数値など、この例に限定されるものではない。 The call information is a set of all information necessary for proceeding with the transaction settlement procedure, such as an identity verification method, a maximum settlement amount, and a settlement method, and is individually set according to each security level. .. What is shown in FIG. 4 is an example thereof, and is not limited to this example such as items, combinations, and numerical values.

図２に示されたように、ＩＣカード利用者は決済端末が備えられた店舗で決済手続を行う。この手続は第１のセキュリティレベルの選択と第２の決済プロセスの２段階で構成される。 As shown in FIG. 2, the IC card user performs the payment procedure at a store equipped with a payment terminal. This procedure consists of two steps: the selection of the first security level and the second payment process.

以下にその第１段階であるセキュリティレベルの選択プロセスについて、ステップＳ１０００からＳ１０１４にかけて、図１をもとに説明する。セキュリティレベルは、ここで生体情報を読み取らせるか、読み取った場合はそれが事前に該ＩＣカードに保持されている生体情報と一致するか否か、によって自動的に割り振られるものである。 The security level selection process, which is the first step, will be described below with reference to FIG. 1 from steps S1000 to S1014. The security level is automatically assigned depending on whether or not the biometric information is read here, and if it is read, it matches the biometric information held in the IC card in advance.

Ｓ１０００：カード利用者はまず決済端末に該ＩＣカード１００をセットする。 S1000: The card user first sets the IC card 100 in the payment terminal.

Ｓ１００１：決済端末は接触・非接触に関わらずＩＣカードがセットされたことを感知したら該ＩＣカード１００に対して給電を開始し、ＩＣカード１００を活性化させる。 S1001: When the payment terminal senses that the IC card is set regardless of contact or non-contact, it starts supplying power to the IC card 100 and activates the IC card 100.

Ｓ１００２：給電を受けたＩＣカード１００は生体情報取得部１２０を読取り待機状態（Ｓ１００３）にすることでセキュリティレベル選択プロセスを開始する。 S1002: The IC card 100 that has received the power supply starts the security level selection process by putting the biometric information acquisition unit 120 into the read standby state (S1003).

Ｓ１００４：利用者４００は生体情報を取得部１２０に読み込ませる（Ｓ１００５）。 S1004: The user 400 causes the acquisition unit 120 to read the biological information (S1005).

Ｓ１００６：処理部１３０はステップＳ１００２から一定時間後、例えば１０秒後に、上記ステップＳ１００５で生体情報が入力されたか否かを判定し、入力されていない場合は保持されていた呼出情報のセットの中からセキュリティレベル「中」に対応する呼出情報（セキュリティポリシー「中」）を記憶部１１０に記憶させ（Ｓ１００７）、選択処理を終了する（Ｓ１０１３）。 S1006: The processing unit 130 determines whether or not the biometric information has been input in step S1005 after a certain period of time, for example, 10 seconds from step S1002, and if not, in the set of retained call information. The call information (security policy "medium") corresponding to the security level "medium" is stored in the storage unit 110 (S1007), and the selection process is terminated (S1013).

Ｓ１００８：上記ステップＳ１００５で生体情報が入力されていた場合、カード処理部１３０は記憶部１１０に保存されている利用者固有の生体情報を問い合わせ、回答を得る（Ｓ１００９）。 S1008: When the biometric information is input in step S1005, the card processing unit 130 inquires about the user-specific biometric information stored in the storage unit 110 and obtains an answer (S1009).

Ｓ１０１０：処理部１３０は上記ステップＳ１００５とＳ１００９のそれぞれで得られた生体情報を相互に照合することによって、生体情報による本人確認を行い、一致が認められた場合は記憶部１１０に保持されていた呼出情報のセットの中からセキュリティレベル「低」に対応する呼出情報（セキュリティポリシー「低」）を（Ｓ１０１２）、一致が認められなかった場合は保持されていた呼出情報のセットの中からセキュリティレベル「高」に対応する呼出情報（セキュリティポリシー「高」）を（Ｓ１０１１）それぞれ記憶させ、選択処理を終了する（Ｓ１０１３）。
Ｓ１０１４：処理部１３０は通信部１４０を介して、該ＩＣカードを用いた決済準備が完了したことを決済端末２００に通知し、セキュリティレベル選択プロセスを完了する。 S1010: The processing unit 130 confirms the identity based on the biometric information by mutually collating the biometric information obtained in each of the steps S1005 and S1009, and if a match is found, the processing unit 130 is held in the storage unit 110. The call information (security policy "low") corresponding to the security level "low" is selected from the call information set (S1012), and if no match is found, the security level is selected from the retained call information set. The call information (security policy "high") corresponding to "high" is stored in each (S1011), and the selection process ends (S1013).
S1014: The processing unit 130 notifies the payment terminal 200 that the payment preparation using the IC card is completed via the communication unit 140, and completes the security level selection process.

以下に第２段階の、上記で選択されたセキュリティレベルに応じた決済プロセスについて、ステップＳ２０００からＳ２０１０にかけて図１をもとに説明する。 The second stage, the payment process according to the security level selected above, will be described below with reference to FIGS. 1 from steps S2000 to S2010.

Ｓ２０００：決済手続準備完了の通知を受けた決済端末２００はＩＣカード１００の通信部１４０を介して処理部１３０に対してＩＣカード内に保存された呼出情報を問い合わせる。
Ｓ２００１：処理部１３０は記憶部１１０に前記呼出情報を問い合わせ、回答を得る（Ｓ２００２）。
Ｓ２００３：処理部１３０は得られた呼出情報を通信部１４０を介して決済端末２００に回答する。 S2000: The payment terminal 200, which has received the notification of the completion of the payment procedure preparation, inquires the processing unit 130 of the call information stored in the IC card via the communication unit 140 of the IC card 100.
S20011: The processing unit 130 inquires the storage unit 110 of the call information and obtains an answer (S2002).
S2003: The processing unit 130 replies the obtained call information to the payment terminal 200 via the communication unit 140.

Ｓ２００４：決済端末２００は得られた呼出情報に応じた決済手続をすすめる。 S2004: The payment terminal 200 proceeds with the payment procedure according to the obtained call information.

Ｓ２００５：呼出情報がセキュリティポリシー「低」であった場合、その呼出情報は図４の表に示したように、本人確認は既に上記ステップＳ１０１０により生体情報によって完了しており、予め設定した上限金額、例えば１万円の範囲内でＥＭＶ仕様に基づくオフライン決済とする（Ｓ２００６）。 S2005: When the call information has a security policy of "low", as shown in the table of FIG. 4, the identity verification has already been completed by the biometric information in the above step S1010, and the preset upper limit amount of money has been set. For example, offline payment based on the EMV specification is made within the range of 10,000 yen (S2006).

Ｓ２００７：呼出情報がセキュリティポリシー「中」であった場合、上記ステップＳ１００６，Ｓ１００７で示したように本人確認が未完であることから、図４の表に示したように、本人確認をＰＩＮあるいは署名で実施し、オフライン決済での取り引きとする。この場合上限金額は予め設定していた例えば５万円とする（Ｓ２００８）。 S2007: When the call information is the security policy "medium", the identity verification is incomplete as shown in steps S1006 and S1007 above. Therefore, as shown in the table of FIG. 4, the identity verification is PIN or signed. The transaction will be carried out by offline payment. In this case, the upper limit is set to, for example, 50,000 yen, which has been set in advance (S2008).

Ｓ２００９：呼出情報がセキュリティポリシー「高」であった場合、上記ステップＳ１０１０，Ｓ１０１１で示したように本人確認が生体情報取得で失敗していることから、図４の表に示したように、本人確認をＰＩＮと署名で実施し、オンライン決済での取り引きとする。この場合上限金額は予め設定していた例えば５万円とする（Ｓ２０１０）。 S2009: When the call information has a security policy of "high", the identity verification fails in the acquisition of biometric information as shown in steps S1010 and S1011 above. Therefore, as shown in the table of FIG. 4, the identity is identified. Confirmation will be carried out with a PIN and signature, and the transaction will be an online payment. In this case, the upper limit is set to, for example, 50,000 yen, which has been set in advance (S2010).

以上のように、利用者固有の生体情報取得機能を有するＩＣカードでの決済に際し、新たな設備投資なしに従来から使用されている決済端末をそのまま利用し、決済レベルに応じた本人確認プロセスを簡便かつ自動的に選択することで、本人確認を全てＩＣカード側で行うことができる制御方法となっており、ＥＭＶトランザクション違反とならず、現有の決済システムを改変することなく運用することができる。 As described above, when making a payment with an IC card that has a user-specific biometric information acquisition function, the payment terminal that has been used conventionally can be used as it is without new capital investment, and the identity verification process according to the payment level can be performed. By selecting it easily and automatically, it is a control method that allows all identity verification to be performed on the IC card side, does not violate the EMV transaction, and can be operated without modifying the existing payment system. ..

１００ 生体情報取得機能付きＩＣカード
１１０ 記憶部
１２０ 取得部
１３０ 処理部
１４０ 通信部
１５０ 電源部
２００ 決済端末
３００ 上位管理サーバー
４００ 利用者 100 IC card with biometric information acquisition function 110 Storage unit 120 Acquisition unit 130 Processing unit 140 Communication unit 150 Power supply unit 200 Payment terminal 300 Upper management server 400 User

Claims (3)

生体認証機能付きＩＣカード利用時にユーザ認証およびカード認証のプロセスに先行して、利用者の生体情報提供の状況に応じて決済処理方法を自動的に決定するＩＣカードの制御方法であって、
少なくとも、生体情報を利用しない場合、生体情報を利用して照合が一致した場合、および生体情報を利用して照合が一致しない場合のそれぞれに対して異なるセキュリティレベルの決済を行うための「セキュリティポリシー対応呼出情報」を有し、
生体情報をＩＣカードに読み込ませて生体情報を取得する取得手段と、
生体情報と呼出情報とを記憶する記憶手段と、
生体情報の状況に応じてセキュリティレベルを決める処理手段とを備え、
そのセキュリティレベルに呼応した決済処理を行うことを特徴とするＩＣカードの制御方法。 This is an IC card control method that automatically determines the payment processing method according to the status of the user's biometric information provision prior to the user authentication and card authentication process when using an IC card with a biometric authentication function.
At the very least, a "security policy" for making payments with different security levels for cases where biometric information is not used, when collations match using biometric information, and when collations do not match using biometric information. Has "correspondence call information"
An acquisition method for acquiring biometric information by reading biometric information into an IC card,
A storage means for storing biological information and calling information,
It is equipped with a processing means that determines the security level according to the status of biometric information.
An IC card control method characterized in that payment processing is performed in response to the security level. 請求項１に記載の制御方法に用いられるＩＣカードであって、
認証に必要な情報を記憶する記憶部と、
生体情報を取得する取得部と、
認証プロセスやデータの処理を行う処理部と、
決済端末などの上位ホストとのデータ通信を行う通信部と、
これらのプロセスを行うために必要な電力を供給する電源部からなり、
これらに加えてセキュリティポリシー対応呼出情報を記憶し、その情報に応じて決済端末と決済処理をすすめる機能を備えることを特徴とするＩＣカード。 An IC card used in the control method according to claim 1.
A storage unit that stores information required for authentication,
The acquisition unit that acquires biological information,
A processing unit that processes authentication processes and data,
A communication unit that performs data communication with a higher-level host such as a payment terminal,
It consists of a power supply that supplies the power needed to perform these processes.
In addition to these, an IC card characterized by having a function of storing security policy-compliant call information and proceeding with a payment terminal and payment processing according to the information. 請求項１または請求項２に記載のＩＣカードであって、
ＥＭＶ規格に準拠して取引決済を行うことのできることを特徴とするＩＣカード。 The IC card according to claim 1 or 2.
An IC card characterized by being able to settle transactions in accordance with the EMV standard.
JP2019174000A 2019-09-25 2019-09-25 IC card control method and IC card Pending JP2021051539A (en)

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