IT1055306B - Apparecchiatura per la cifratura di dati - Google Patents

Apparecchiatura per la cifratura di dati

Info

Publication number
IT1055306B
IT1055306B IT20232/76A IT2023276A IT1055306B IT 1055306 B IT1055306 B IT 1055306B IT 20232/76 A IT20232/76 A IT 20232/76A IT 2023276 A IT2023276 A IT 2023276A IT 1055306 B IT1055306 B IT 1055306B
Authority
IT
Italy
Prior art keywords
data encryption
encryption equipment
equipment
data
encryption
Prior art date
Application number
IT20232/76A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1055306B publication Critical patent/IT1055306B/it

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
    • H04L9/06—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
    • 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
    • H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations
    • 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)
  • Storage Device Security (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Error Detection And Correction (AREA)
IT20232/76A 1975-02-24 1976-02-17 Apparecchiatura per la cifratura di dati IT1055306B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/552,685 US3958081A (en) 1975-02-24 1975-02-24 Block cipher system for data security

Publications (1)

Publication Number Publication Date
IT1055306B true IT1055306B (it) 1981-12-21

Family

ID=24206358

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20232/76A IT1055306B (it) 1975-02-24 1976-02-17 Apparecchiatura per la cifratura di dati

Country Status (5)

Country Link
US (1) US3958081A (it)
JP (1) JPS5936463B2 (it)
CA (1) CA1048935A (it)
GB (1) GB1480859A (it)
IT (1) IT1055306B (it)

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US9319878B2 (en) * 2012-09-14 2016-04-19 Qualcomm Incorporated Streaming alignment of key stream to unaligned data stream
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US3798360A (en) * 1971-06-30 1974-03-19 Ibm Step code ciphering system
US3798359A (en) * 1971-06-30 1974-03-19 Ibm Block cipher cryptographic system

Also Published As

Publication number Publication date
US3958081A (en) 1976-05-18
GB1480859A (en) 1977-07-27
CA1048935A (en) 1979-02-20
JPS51108702A (it) 1976-09-27
JPS5936463B2 (ja) 1984-09-04

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