GB2578730B - Encrypting plaintext or decrypting ciphertext - Google Patents

Encrypting plaintext or decrypting ciphertext Download PDF

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Publication number
GB2578730B
GB2578730B GB1818035.6A GB201818035A GB2578730B GB 2578730 B GB2578730 B GB 2578730B GB 201818035 A GB201818035 A GB 201818035A GB 2578730 B GB2578730 B GB 2578730B
Authority
GB
United Kingdom
Prior art keywords
encrypting plaintext
decrypting ciphertext
ciphertext
decrypting
plaintext
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.)
Active
Application number
GB1818035.6A
Other versions
GB2578730A (en
GB201818035D0 (en
Inventor
Dunkley Adam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1818035.6A priority Critical patent/GB2578730B/en
Publication of GB201818035D0 publication Critical patent/GB201818035D0/en
Priority to PCT/GB2019/053126 priority patent/WO2020095034A1/en
Publication of GB2578730A publication Critical patent/GB2578730A/en
Application granted granted Critical
Publication of GB2578730B publication Critical patent/GB2578730B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04L9/06—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
    • H04L9/0631—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Storage Device Security (AREA)
GB1818035.6A 2018-11-05 2018-11-05 Encrypting plaintext or decrypting ciphertext Active GB2578730B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1818035.6A GB2578730B (en) 2018-11-05 2018-11-05 Encrypting plaintext or decrypting ciphertext
PCT/GB2019/053126 WO2020095034A1 (en) 2018-11-05 2019-11-05 Encrypting plaintext or decrypting ciphertext using a polyalphabetic/substitution cipher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1818035.6A GB2578730B (en) 2018-11-05 2018-11-05 Encrypting plaintext or decrypting ciphertext

Publications (3)

Publication Number Publication Date
GB201818035D0 GB201818035D0 (en) 2018-12-19
GB2578730A GB2578730A (en) 2020-05-27
GB2578730B true GB2578730B (en) 2020-11-18

Family

ID=64655493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1818035.6A Active GB2578730B (en) 2018-11-05 2018-11-05 Encrypting plaintext or decrypting ciphertext

Country Status (2)

Country Link
GB (1) GB2578730B (en)
WO (1) WO2020095034A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1480858A (en) * 1975-02-24 1977-07-27 Ibm Enciphering

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10043036B1 (en) * 2017-08-22 2018-08-07 TokenEx, LLC Systems and methods for tokenization to support pseudononymization of sensitive data

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1480858A (en) * 1975-02-24 1977-07-27 Ibm Enciphering

Also Published As

Publication number Publication date
GB2578730A (en) 2020-05-27
WO2020095034A1 (en) 2020-05-14
GB201818035D0 (en) 2018-12-19

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