International Business Machines Corporation

Qining Li

Shiwan Zhao

Yan Zhao

Yan Yan

Lei Sun

Jing Sun

Qi Cheng

Zhen Xiang Yang

Tianyi Wang

Chuan Jie Zheng

Xi Qing Wang

A method, computer program product and computer system is provided. A processor receives a read request for a data entry from a client device, where the read request includes a first identifier. A processor retrieves a second identifier from a first storage device, where the second identifier is associated with the data entry as stored in the first storage device. Responsive to the first identifier and the second identifier not matching, a processor updates the data entry of the first storage device with a corresponding data entry from a second storage device.

Data consistency maintenance for sequential requests

The invention relates to information processing field, and discloses a method for protecting sensitive information, comprising: determining that the sensitive information is required by a server; transmitting first information to a trusted device connected to the untrusted device, where the first information enables the sensitive information to be transmitted from the trusted device to the server, wherein the sensitive information is input on the trusted device; receiving second information transmitted by the trusted device, the second information is generated based on the first information and includes the sensitive information encrypted with a first secret key, wherein the first secret key meets one of the following: the untrusted device does not know the first secret key; the untrusted device knows the first secret key but is unable to use the first secret key to decrypt the encrypted sensitive information; forwarding the second information to the server.

Protecting sensitive information using an untrusted device

The invention relates to information processing field, and discloses a method for protecting sensitive information, comprising: receiving first information transmitted by an untrusted device, where the first information enables the sensitive information to be transmitted from a trusted device to a server; receiving the sensitive information input by a user; generating second information based on the first information and the sensitive information; encrypting at least the sensitive information in the second information with a first secret key, wherein the first secret key meets one of the following: the untrusted device does not know the first secret key; and the untrusted device knows the first secret key but is unable use the first secret key to decrypt the encrypted sensitive information; and transmitting the second information containing the encrypted sensitive information to the untrusted device for forwarding to the server indicated by the first information.

Protecting sensitive information using a trusted device

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Beijing, China

Qining Li