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Method and system for saving and extracting password of smart card

A smart card and password technology, which is applied in the field of password storage and extraction of personal terminal stored-value cards, can solve problems such as poor user experience, inconvenient security, etc., and achieve the effect of being difficult to crack, difficult to maliciously steal and crack, and easy to use

Active Publication Date: 2017-06-20
SHANGHAI RATTA ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for storing and extracting smart card passwords, so as to solve the problem of having to correctly input the card PIN code (password) each time when the existing personal terminal inquires about the balance and historical transaction records in the stored value card. , in order to query the results, there are problems of poor user experience, inconvenience and poor security

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  • Method and system for saving and extracting password of smart card
  • Method and system for saving and extracting password of smart card
  • Method and system for saving and extracting password of smart card

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Embodiment Construction

[0059] In order to better illustrate the present invention, the present invention will be described in detail with a preferred embodiment and with accompanying drawings, specifically as follows:

[0060] This embodiment provides a method for saving and extracting a smart card password, including the following:

[0061] When the personal terminal communicates with the smart card for the first time, such as Figure 1A shown, store the password as follows:

[0062] S11: After receiving the password for the verification operation, encrypt the password to obtain encrypted ciphertext;

[0063] S12: The personal terminal stores the encrypted ciphertext in a storage space of the personal terminal in a distributed manner;

[0064] Then when the personal terminal communicates with the smart card not for the first time, if Figure 1B As shown, first extract the password as follows:

[0065] S21: extract the encrypted ciphertext distributed in the storage space of the personal terminal...

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Abstract

The invention provides a method and a system for saving and extracting a password of a smart card. The method specifically comprises the following process: a personal terminal, when communicating with the smart card for the first time, stores the password by the following steps: S11, encrypting a password of a validation operation to obtain an encrypted ciphertext after the password is received; and S12, distributively storing, by the personal terminal, the encrypted ciphertext in the storage space of the personal device. Then, the personal terminal, when communicating with the smart card for no first time, stores the password by the following steps: S21, extracting the encrypted ciphertext distributed in the storage space of the personal terminal; and S22, decrypting the encrypted ciphertext to obtain the password for the validation operation. According to the invention, by automatically saving the password after the first validation of password by a user is successful, the user can query the results without the password when querying the balance in a card and historical transaction records, and the use is facilitated. Moreover, the encrypted ciphertext of the password is stored distributively such that the security of data of the encrypted ciphertext is improved.

Description

technical field [0001] The invention relates to the technical field of storing and extracting passwords of stored-value cards for personal terminals, and in particular to a method and system for storing and extracting passwords of smart cards. Background technique [0002] With the development of personal terminal equipment technology, personal terminal stored-value cards have begun to appear. Users can communicate with stored-value cards (smart cards) through their own personal terminals, so as to directly query the balance in the stored-value cards and Historical transaction records. [0003] For example, with the establishment of protocol specifications for smart cards such as PBOC1.0 specification, PBOC2.0, Sinopec IC card specification, PetroChina IC card specification, and public transportation card specification, smart cards have become popular. However, when the existing personal terminal equipment reads the stored-value IC card and inquires the balance and historic...

Claims

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Application Information

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IPC IPC(8): G06F21/45G06F21/60G06K17/00
CPCG06F21/45G06F21/602G06K17/00
Inventor 何笑维
Owner SHANGHAI RATTA ELECTRONICS TECH