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Security process for data entry keypad with touchscreen - uses keys with associated character changed randomly and visible only to user
Security process for data entry keypad with touchscreen - uses keys with associated character changed randomly and visible only to user
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机译:带触摸屏的数据输入键盘的安全过程-使用带有随机更改的关联字符且仅对用户可见的键
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摘要
The process uses a keypad (202) for data entry with each key associated with a valid character such as a letter or number. The associated character is displayed by a liquid crystal display adjacent to the key and may be changed at least after each use of the keypad in a random manner. The character display is constructed with a narrow arc of visibility to be readable by the keypad user only. The character may be displayed beneath a transparent touch sensitive screen so that pressure on the displayed character activates the data entry process. USE/ADVANTAGE - With smart card for telephone or bank card. Secure keypad for data entry prevents unauthorised acquisition of passwords or PIN numbers.
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