RU2211541C2 - Method for cryptographic conversion of digital data blocks - Google Patents
Method for cryptographic conversion of digital data blocks Download PDFInfo
- Publication number
- RU2211541C2 RU2211541C2 RU2001130201/09A RU2001130201A RU2211541C2 RU 2211541 C2 RU2211541 C2 RU 2211541C2 RU 2001130201/09 A RU2001130201/09 A RU 2001130201/09A RU 2001130201 A RU2001130201 A RU 2001130201A RU 2211541 C2 RU2211541 C2 RU 2211541C2
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- RU
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- subblocks
- conversion
- controlled
- control code
- digital data
- Prior art date
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Abstract
FIELD: electrical communications and computer engineering. SUBSTANCE: data conversion by using proposed cryptographic method intended for protecting information transferred over telecommunication lines ensures post-conversion pseudorandom variation of total parity of key bits and input data block. Method involves division of digital data block into N≥2 subblocks and alternate conversion of subblocks; one of subblocks is converted by generating control code followed by execution of controlled conversion operation over this subblock. Used as controlled operation is controlled operational substitution; control code is generated by private key and by value of one of subblocks. EFFECT: enhanced stability to linear cryptanalysis. 3 cl, 9 dwg, 1 tbl
Description
Текст описания в факсимильном виде (см. графическую часть)т Description text in facsimile form (see graphic part) t
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2001130201/09A RU2211541C2 (en) | 2001-11-08 | 2001-11-08 | Method for cryptographic conversion of digital data blocks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2001130201/09A RU2211541C2 (en) | 2001-11-08 | 2001-11-08 | Method for cryptographic conversion of digital data blocks |
Publications (1)
Publication Number | Publication Date |
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RU2211541C2 true RU2211541C2 (en) | 2003-08-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2001130201/09A RU2211541C2 (en) | 2001-11-08 | 2001-11-08 | Method for cryptographic conversion of digital data blocks |
Country Status (1)
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RU (1) | RU2211541C2 (en) |
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2001
- 2001-11-08 RU RU2001130201/09A patent/RU2211541C2/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20051109 |