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SG10201710088QA - Method and system for generation of cipher round keys by bit-mixers - Google Patents

Method and system for generation of cipher round keys by bit-mixers

Info

Publication number
SG10201710088QA
SG10201710088QA SG10201710088QA SG10201710088QA SG10201710088QA SG 10201710088Q A SG10201710088Q A SG 10201710088QA SG 10201710088Q A SG10201710088Q A SG 10201710088QA SG 10201710088Q A SG10201710088Q A SG 10201710088QA SG 10201710088Q A SG10201710088Q A SG 10201710088QA
Authority
SG
Singapore
Prior art keywords
inputs
bit
round keys
cipher
mixers
Prior art date
Application number
SG10201710088QA
Inventor
Laszlo Hars
Original Assignee
Boeing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boeing Co filed Critical Boeing Co
Publication of SG10201710088QA publication Critical patent/SG10201710088QA/en

Links

Classifications

    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/30007—Arrangements for executing specific machine instructions to perform operations on data operands
    • G06F9/30029—Logical and Boolean instructions, e.g. XOR, NOT
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
    • 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
    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Studio Circuits (AREA)
  • Communication Control (AREA)

Abstract

METHOD AND SYSTEM FOR GENERATION OF CIPHER ROUND KEYS BY BIT- MIXERS System and methods for generating round keys for a cryptographic operation are disclosed. The systems and method can use logic circuits that are operable to: obtain first inputs and second inputs; perform a bit-mixer operation on each of the first inputs and the second inputs; and generate round keys based on the performing. The first inputs include a plurality of equal sized subkeys from a key material that is divided into a plurality of equal sized key material sub-blocks, a cipher key and the second inputs include a random input, one or more previous round keys, or a round number. The cryptographic operation includes a cipher, a hash function, or a stream generator. The bit-mixer operation includes an exclusive-OR (XOR) tree, a substitution-permutation network, or a double-mix Feistel network, or a Rotate-Add-XOR (RAX) construction. FIG. 11
SG10201710088QA 2016-12-16 2017-12-05 Method and system for generation of cipher round keys by bit-mixers SG10201710088QA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/381,540 US10742405B2 (en) 2016-12-16 2016-12-16 Method and system for generation of cipher round keys by bit-mixers

Publications (1)

Publication Number Publication Date
SG10201710088QA true SG10201710088QA (en) 2018-07-30

Family

ID=60043054

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201710088QA SG10201710088QA (en) 2016-12-16 2017-12-05 Method and system for generation of cipher round keys by bit-mixers

Country Status (7)

Country Link
US (1) US10742405B2 (en)
EP (1) EP3337082B1 (en)
JP (1) JP7107670B2 (en)
KR (1) KR102447709B1 (en)
CN (1) CN108206735B (en)
SG (1) SG10201710088QA (en)
TW (1) TWI744388B (en)

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CN109408029A (en) * 2018-10-17 2019-03-01 南京汽车集团有限公司 The method of car networking lower sensor generation random number
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CN109450618B (en) * 2019-01-11 2021-12-31 无锡华大国奇科技有限公司 MD 5-based encryption method and system
US11956367B2 (en) * 2019-02-19 2024-04-09 Bruno SANGLE-FERRIERE Cryptographic method for verifying data
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US11893122B2 (en) 2020-06-05 2024-02-06 William David SCHWADERER Shapeshift data encryption methods and systems
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CN112751663B (en) * 2020-12-31 2022-12-23 南方电网科学研究院有限责任公司 Data encryption method and device
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Also Published As

Publication number Publication date
JP7107670B2 (en) 2022-07-27
TWI744388B (en) 2021-11-01
US20180176011A1 (en) 2018-06-21
KR102447709B1 (en) 2022-09-26
US10742405B2 (en) 2020-08-11
KR20180070459A (en) 2018-06-26
EP3337082B1 (en) 2020-04-15
CN108206735B (en) 2023-04-14
EP3337082A1 (en) 2018-06-20
JP2018109750A (en) 2018-07-12
TW201826162A (en) 2018-07-16
CN108206735A (en) 2018-06-26

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