JP2005027358A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2005027358A5 JP2005027358A5 JP2004309002A JP2004309002A JP2005027358A5 JP 2005027358 A5 JP2005027358 A5 JP 2005027358A5 JP 2004309002 A JP2004309002 A JP 2004309002A JP 2004309002 A JP2004309002 A JP 2004309002A JP 2005027358 A5 JP2005027358 A5 JP 2005027358A5
- Authority
- JP
- Japan
- Prior art keywords
- block
- plaintext
- random number
- generate
- encryption method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Claims (1)
冗長データとメッセージとからなる平文を特定の長さで区切った複数の平文ブロックを生成し，
秘密鍵から，乱数列を生成し，前記乱数列から前記平文ブロックに対応する乱数ブロックを生成し，
前記平文ブロックと前記乱数ブロックとを演算して得た他の前記平文ブロックへのフィードバック値を出力し，
前記平文ブロックと，前記乱数ブロックと，他の平文ブロックの演算から得られるフィードバック値とを用いて暗号文ブロックを暗号演算する共通鍵暗号方法。 A symmetric key encryption method,
Generate multiple plaintext blocks by dividing plaintext consisting of redundant data and messages by a specific length,
Generate a random number sequence from the secret key, generate a random number block corresponding to the plaintext block from the random number sequence,
Outputting a feedback value to the other plaintext block obtained by calculating the plaintext block and the random number block;
A common key encryption method for performing cipher operation on a ciphertext block using the plaintext block, the random number block, and a feedback value obtained from the operation of another plaintext block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004309002A JP4752239B2 (en) | 2000-03-09 | 2004-10-25 | Common key encryption method and apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000070994 | 2000-03-09 | ||
| JP2000070994 | 2000-03-09 | ||
| JP2004309002A JP4752239B2 (en) | 2000-03-09 | 2004-10-25 | Common key encryption method and apparatus |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000210690A Division JP3864675B2 (en) | 2000-03-09 | 2000-07-06 | Common key encryption device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005027358A JP2005027358A (en) | 2005-01-27 |
| JP2005027358A5 true JP2005027358A5 (en) | 2007-08-23 |
| JP4752239B2 JP4752239B2 (en) | 2011-08-17 |
Family
ID=34196385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004309002A Expired - Fee Related JP4752239B2 (en) | 2000-03-09 | 2004-10-25 | Common key encryption method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4752239B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9032208B2 (en) | 2010-08-24 | 2015-05-12 | Mitsubishi Electric Corporation | Communication terminal, communication system, communication method and communication program |
| EP4064607B1 (en) | 2020-02-06 | 2023-10-18 | Mitsubishi Electric Corporation | Encryption device, decryption device, encryption method, decryption method, encryption program, and decryption program |
| CN111669269B (en) * | 2020-06-08 | 2023-08-15 | 晋商博创（北京）科技有限公司 | BLK data encryption method, device and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3624971B2 (en) * | 1995-10-02 | 2005-03-02 | 松下電器産業株式会社 | Software usage control method |
-
2004
- 2004-10-25 JP JP2004309002A patent/JP4752239B2/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4967544B2 (en) | Cryptographic processing apparatus, cryptographic processing method, and computer program | |
| WO2007069236A3 (en) | Method and system for usage of block cipher encryption | |
| ES2509345T3 (en) | Security threshold decryption protocol calculation | |
| JP4622807B2 (en) | Cryptographic processing apparatus, cryptographic processing method, and computer program | |
| JP2010140026A (en) | Method and device for encryption chained mode | |
| WO2010105915A3 (en) | Method for providing a cryptic pair of keys | |
| WO2008148784A3 (en) | Cryptographic methods and devices for the pseudo-random generation of data encryption and cryptographic hashing of a message | |
| JP2013047822A5 (en) | ||
| WO2007075156A3 (en) | Cryptography related to keys | |
| WO2007102898A3 (en) | Encryption protection method | |
| CA2337306A1 (en) | Method and apparatus for symmetric-key encryption | |
| WO2008001327A3 (en) | Method and apparatus for encrypting/decrypting data | |
| WO2006045114A3 (en) | Cryptographic primitives, error coding, and pseudo-random number improvement methods using quasigroups | |
| JP5364840B2 (en) | Encryption device | |
| ATE472133T1 (en) | DECRYPTION PROCEDURE | |
| WO2007092098A3 (en) | Data sequence encryption and decryption | |
| JP2008058827A (en) | Encryption processor and processing method, and computer program | |
| WO2008152393A3 (en) | Fuzzy keys | |
| WO2005060151A3 (en) | Trusted mobile platform architecture | |
| JP2008058829A (en) | Encryption processor, encryption processing method, and computer program | |
| JP2012215816A (en) | Encryption processing device, encryption processing method, and program | |
| JP2006072054A (en) | Encryption processing device, encryption processing method, and computer program | |
| WO2008114829A1 (en) | Encryption device, decryption device, encryption program, decryption program, and recording medium | |
| KR101095386B1 (en) | A Cryptosystem with a Discretized Chaotic Map | |
| Ojha et al. | An Innovative Approach to Enhance the Security of Data Encryption Scheme |