3GPP (GSM only) 55-series — Security Algorithms

The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green. TS that have been discontinued in earlier releases are indicated with a light blue color. TR in the '9' range that have been stopped are highlighted in light green. TS or TR with a yellow background indicate those updated at the latest Q4-2024 Plenary Meetings. The new ones are displayed with a single red dotted overline.

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TS 55.205	REL 6 → 18	Specification of the GSM-MILENAGE Algorithms: an Example Algorithm set for GSM Authentication and Key Generation Functions A3 and A8

Specification of the A5/3 Encryption Algorithms for GSM and ECSD, and the GEA3 Encryption Algorithm for GPRS
TS 55.216	REL 3 → 18	Document 1: A5/3 and GEA3 Specification
TS 55.217	REL 3 → 18	Document 2: Implementors' Test Data
TS 55.218	REL 3 → 18	Document 3: Design and Conformance Test Data
TR 55.919	REL 3 → 18	Document 4: Design and Evaluation Report

TS 55.226	REL 9 → 18	Specification of the A5/4 Encryption Algorithms for GSM and ECSD, and the GEA4 Encryption Algorithm for GPRS
TS 55.236	REL 6 → 18	Specification of A8_V MILENAGE Algorithm: an Example Algorithm for the Key Generation function A8_V

Specification of the GIA4 Encryption Algorithms for GPRS
TS 55.241	REL 13 → 18	GIA4 Specification
TS 55.242	REL 13 → 18	Implementers' Test Data
TS 55.243	REL 13 → 18	Design Conformance Test Data

Specification of the GPRS Confidentiality and Integrity Algorithms GEA5 and GIA5
TS 55.251	REL 13 → 18	GEA5 and GIA5 Specifications
TS 55.252	REL 13 → 18	Implementers' Test Data
TS 55.253	REL 13 → 18	Design Conformance Test Data