Specification #: 55.226
Reference: 55.226
Title: 3G Security; Specification of the A5/4 Encryption Algorithms for GSM and ECSD, and the GEA4 Encryption Algorithm for GPRS
Status: Under change control
Type: Technical specification (TS)
Initial planned Release: Release 6
Internal:
Common IMS Specification:
Radio technology:
Click to see all versions of this specification
Remarks (1)
Creation dateAuthorRemark
2015-01-22 12:42 UTC
Work item UID = 1571 (SEC1). SP-45: French export licence not yet applied for. 2003-09-30: Note: document only available with French export licence, upon signature; document not available for free download. 2011-02: uploaded in the form of a pointer to instructions for download.
History
Action dateActionAuthor
2017-10-27 12:24 UTC
Prime Rapporteur has been changed to Anand Prasad. Previous: Per Christoffersson
Mirko Cano Soveri
Primary responsible group: SA 3
Secondary responsible groups: -
Rapporteurs
NameCompany
Anand Prasad
NEC Europe Ltd
31627
Parent Specifications
Spec #TypeTitleStatusPrime grp 
55.216
TS
3G Security; Specification of the A5/3 encryption algorithms for GSM and ECSD, and the GEA3 encryption algorithm for GPRS; Document 1: A5/3 and GEA3 specifications
UCC
S3
See details
progress
Child Specifications
Spec #TypeTitleStatusPrime grp 
No related specifications
progress
Related Work Items
UIDAcronymTitleResp. grp(s) 
1571
SEC16
Rel-6 Security enhancements
S3
See details True
440157
A5/4-GEA4
SA3 part of 128 bit encryption for GSM and GPRS
S3
See details False
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    Automatic upgrade from previo...
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    SA#57
    11.0.0
    		2012-09-27
    Automatic upgrade from previo...
    		28526SA#576285
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    SA#51
    10.0.0
    		2011-04-06
    Automatic upgrade from previo...
    		28180SA#514732
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    SA#45
    9.0.0
    		2011-02-03
    Availability delayed due to a...
    		26398SA#453532
    SA#45
    2.0.0
    SP-090647 subject to French e...
    		26398SA#457253
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    SA#23
    1.0.0
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    SP-040170 - draft not availab...
    		22815SA#23492
    -
    0.1.0
    		2006-01-30
    		  11275
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