Classifications

• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
  • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
  • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
  • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
  • G06F7/723—Modular exponentiation
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
  • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
  • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
  • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
  • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
  • G06F2207/72—Indexing scheme relating to groups G06F7/72 - G06F7/729
  • G06F2207/7219—Countermeasures against side channel or fault attacks
  • G06F2207/7223—Randomisation as countermeasure against side channel attacks
  • G06F2207/7233—Masking, e.g. (A**e)+r mod n
  • G06F2207/7242—Exponent masking, i.e. key masking, e.g. A**(e+r) mod n; (k+r).P
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
  • H04L2209/12—Details relating to cryptographic hardware or logic circuitry

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• Engineering & Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Computational Mathematics (AREA)
• Mathematical Analysis (AREA)
• Mathematical Optimization (AREA)
• Pure & Applied Mathematics (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• General Engineering & Computer Science (AREA)
• Mathematical Physics (AREA)
• Computing Systems (AREA)
• Storage Device Security (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Automatic Cycles, And Cycles In General (AREA)
• Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
• Calculators And Similar Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=24795138

Family Applications (1)

Country Status (7)

Families Citing this family (19)

Family Cites Families (4)

• 2000
  • 2000-10-25 US US09/695,958 patent/US6769062B1/en not_active Expired - Lifetime
• 2001
  • 2001-09-24 AT AT01979279T patent/ATE292301T1/de not_active IP Right Cessation
  • 2001-09-24 JP JP2002538261A patent/JP2004512570A/ja active Pending
  • 2001-09-24 EP EP01979279A patent/EP1330702B1/de not_active Expired - Lifetime
  • 2001-09-24 DE DE60109805T patent/DE60109805T2/de not_active Expired - Fee Related
  • 2001-09-24 WO PCT/US2001/029855 patent/WO2002035341A2/en not_active Ceased
  • 2001-09-24 AU AU2002211260A patent/AU2002211260A1/en not_active Abandoned

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