DATA ENCRYPTION AND DECRYPTION METHOD, DEVICE, STORAFE MEDIUM AND ENCRYPTED FILE
This Laos Patent “DATA ENCRYPTION AND DECRYPTION METHOD, DEVICE, STORAFE MEDIUM AND ENCRYPTED FILE” is a public DIP intellectual-property record, filed by CHINA UNIONPAY CO., LTD. on 2020-09-28; current status: Registered. Identifiers include application No. P/808; DIP id LAP808; protection kind Patent - PCT National Phase. Key dates: publication 2024-10-24; grant 2024-09-24; expiry reference 2040-09-28. Classification: H04L 29/06、H04L 9/14、H04L 9/32. Inventor(s)/designer(s): CHEN, Lin, XU, Bin, YANG, Sen. Abstract hint: The present application relates to the technical field of data processing, and provided are methods and apparatuses for encrypting and decr…. Use LaoBiz.com to hop between this IP record, related filings by the same applicant, and the matched company profile when present.
P/808
Mark
Key facts
- Type
- Patent
- App. no.
P/808- Status
- Registered
- Applicant
- CHINA UNIONPAY CO., LTD.
- Agent
- CONCETTI-LAO CO., LTD
- Filing date
- 2020-09-28
- Reg. no.
P/808- Publication
- 2024-10-24
- Registration / grant
- 2024-09-24
- Expiry
- 2040-09-28
- Protection kind
- Patent - PCT National Phase
- Gazette
- 274 · 2024-10-24
- Priority
- CN · 201911176393.0 · 2019-11-26
- Applicant address
- CHINA UNIONPAY CO., LTD. · CUP Tower,36 Hanxiao Rd., Pudong New Area Shanghai 200135, People's Republic of China · CN
- Agent address
- CONCETTI-LAO CO., LTD · Lao-Thai Friendship Road, Sokpaluang Village,Sisattanak District, Vientiane Lao PDR · LA
- Nice / IPC classes
- H04L 29/06 · H04L 9/14 · H04L 9/32
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
The present application relates to the technical field of data processing, and provided are methods and apparatuses for encrypting and decrypting data, a storage medium, and an encrypted file. The method for encrypting data comprises: acquiring a first key, and performing an obfuscation operation on the first key and data to be encrypted to obtain obfuscation operation result data; acquiring a second key, and obtaining a first signature of the obfuscation operation result data according to the second key; acquiring a third key, and using the third key to encrypt the first key, the data, and the first signature to obtain target ciphertext; acquiring a fourth key, and obtaining a second signature of the target ciphertext according to the fourth key; and generating an encrypted file comprising the target ciphertext and the second signature. The security of data protection may be improved by using the technical solution of the present application.
The present application relates to the technical field of data processing, and provided are methods and apparatuses for encrypting and decrypting data, a storage medium, and an encrypted file. The method for encrypting data comprises: acquiring a first key, and performing an obfuscation operation on the first key and data to be encrypted to obtain obfuscation operation result data; acquiring a second key, and obtaining a first signature of the obfuscation operation result data according to the second key; acquiring a third key, and using the third key to encrypt the first key, the data, and the first signature to obtain target ciphertext; acquiring a fourth key, and obtaining a second signature of the target ciphertext according to the fourth key; and generating an encrypted file comprising the target ciphertext and the second signature. The security of data protection may be improved by using the technical solution of the present application.
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