Purposes off GSM SSeeccuurriittyy
Purposes of GSM Security include:
• Provision of user identity confidentiality
• Use of temporary identities (TMSI)
• Protection against unauthorised access
• Authentication & service request validation
• Provision of data confidentiality
• Encryption (Ciphering)
• Provision of network signalling confidentiality
The capability to implement the above security measures is mandatory for both the MS and
the network. However, the implementation is not e.g. ciphering can be switched off. These
security measures are designed to protect data within the GSM PLMN only. Implementation
of end-to-end security of user data is not specified within the GSM recommendation
Purposes of GSM Security include:
• Provision of user identity confidentiality
• Use of temporary identities (TMSI)
• Protection against unauthorised access
• Authentication & service request validation
• Provision of data confidentiality
• Encryption (Ciphering)
• Provision of network signalling confidentiality
The capability to implement the above security measures is mandatory for both the MS and
the network. However, the implementation is not e.g. ciphering can be switched off. These
security measures are designed to protect data within the GSM PLMN only. Implementation
of end-to-end security of user data is not specified within the GSM recommendation
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