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Data Processing System, Encryption Apparatus, Decryption Apparatus
Abstract: A cipher text transmission apparatus (100) and a key generation apparatus (300) generate a first encryption key for a first decryption algorithm and a first decryption key; generate a second encryption key for a second decryption algorithm and a second decryption key; use the second encryption key to encrypt the first decryption key according to an encryption algorithm corresponding to the second decryption algorithm thereby generating an encrypted first decryption key; and use the first encryption key to encrypt plain text data according to an encryption algorithm corresponding to the first decryption algorithm thereby generating cipher text data. A key device (400) uses the second decryption key to decrypt the encrypted first decryption key according to the second decryption algorithm. A cipher text reception apparatus (200) uses the first decryption key which has been decrypted by the key device (400) to decrypt the cipher text data according to the first decryption algorithm.
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUBISHI ELECTRIC CORPORATION
Inventors
1. ICHIKAWA, Sachihiro
2. OOTA, Hidenori
3. MATSUDA, Nori
4. MORI, Takumi
Specification
SOFT COPY ATTACHED IN PDF
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | PROOF OF RIGHT [30-05-2016(online)].pdf | 2016-05-30 |
| 2 | Power of Attorney [30-05-2016(online)].pdf | 2016-05-30 |
| 3 | Form 5 [30-05-2016(online)].pdf | 2016-05-30 |
| 4 | Form 3 [30-05-2016(online)].pdf | 2016-05-30 |
| 5 | Form 18 [30-05-2016(online)].pdf_65.pdf | 2016-05-30 |
| 6 | Form 18 [30-05-2016(online)].pdf | 2016-05-30 |
| 7 | Form 1 [30-05-2016(online)].pdf | 2016-05-30 |
| 8 | Drawing [30-05-2016(online)].pdf | 2016-05-30 |
| 9 | Description(Complete) [30-05-2016(online)].pdf | 2016-05-30 |
| 10 | 201647018473.pdf | 2016-06-08 |
| 11 | Description(Complete) [06-07-2016(online)].pdf | 2016-07-06 |
| 12 | 201647018473-RELEVANT DOCUMENTS [06-07-2016(online)].pdf | 2016-07-06 |
| 13 | 201647018473-MARKED COPIES OF AMENDEMENTS [06-07-2016(online)].pdf | 2016-07-06 |
| 14 | 201647018473-AMMENDED DOCUMENTS [06-07-2016(online)].pdf | 2016-07-06 |
| 15 | 201647018473-Amendment Of Application Before Grant - Form 13 [06-07-2016(online)].pdf | 2016-07-06 |
| 16 | 201647018473-Form 1-140616.pdf | 2016-07-25 |
| 17 | 201647018473-Correspondence-Form 1-140616.pdf | 2016-07-25 |
| 18 | Form 3 [30-11-2016(online)].pdf | 2016-11-30 |
| 19 | Form 3 [07-12-2016(online)].pdf | 2016-12-07 |
| 20 | 201647018473-FER.pdf | 2019-10-22 |
| 21 | 201647018473-OTHERS [06-02-2020(online)].pdf | 2020-02-06 |
| 22 | 201647018473-FORM 3 [06-02-2020(online)].pdf | 2020-02-06 |
| 23 | 201647018473-FER_SER_REPLY [06-02-2020(online)].pdf | 2020-02-06 |
| 24 | 201647018473-DRAWING [06-02-2020(online)].pdf | 2020-02-06 |
| 25 | 201647018473-COMPLETE SPECIFICATION [06-02-2020(online)].pdf | 2020-02-06 |
| 26 | 201647018473-CLAIMS [06-02-2020(online)].pdf | 2020-02-06 |
| 27 | 201647018473-ABSTRACT [06-02-2020(online)].pdf | 2020-02-06 |
| 28 | 201647018473-FORM 3 [17-06-2020(online)].pdf | 2020-06-17 |
| 29 | 201647018473-Correspondence to notify the Controller [06-08-2021(online)].pdf | 2021-08-06 |
| 30 | 201647018473-FORM-26 [09-08-2021(online)].pdf | 2021-08-09 |
| 31 | 201647018473-Correspondence And Form-26_16-08-2021.pdf | 2021-08-16 |
| 32 | 201647018473-Written submissions and relevant documents [24-08-2021(online)].pdf | 2021-08-24 |
| 33 | 201647018473-US(14)-HearingNotice-(HearingDate-09-08-2021).pdf | 2021-10-17 |
| 34 | 201647018473-FORM 3 [17-11-2021(online)].pdf | 2021-11-17 |
| 35 | 201647018473-FORM 3 [08-12-2021(online)].pdf | 2021-12-08 |
| 36 | 201647018473-PatentCertificate14-03-2022.pdf | 2022-03-14 |
| 37 | 201647018473-IntimationOfGrant14-03-2022.pdf | 2022-03-14 |
Search Strategy
| 1 | 2019-10-1512-39-07_15-10-2019.pdf |