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For the 5G primary authentication, 5G-AKA (5G Authentication and Key Agreement) has been designed and standardized in the 3GPP consortium. In this paper, we propose a stealth mode of 5G-AKA (for short, Stealth-5G-AKA) protocol that is compatible with the current 3GPP standard. In the Stealth-5G-AKA protocol, UE and SN share a stealth anchor key in addition to a (regular) anchor key. Also, we discuss several security properties of the Stealth-5G-AKA protocol. Moreover, we compare the 5G-AKA [3] with relevant 3GPP-compatible protocols (5G-AKA’ [22], 5G-AKA-FS [23] and Stealth-5G-AKA) with respect to security properties and efficiency in terms of computation costs and communication costs.

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Toward a Stealth Mode of 5G-AKA

  • 会议论文

  • 发表日期：

    2026年

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  • SeongHan Shin

摘要

For the 5G primary authentication, 5G-AKA (5G Authentication and Key Agreement) has been designed and standardized in the 3GPP consortium. In this paper, we propose a stealth mode of 5G-AKA (for short, Stealth-5G-AKA) protocol that is compatible with the current 3GPP standard. In the Stealth-5G-AKA protocol, UE and SN share a stealth anchor key in addition to a (regular) anchor key. Also, we discuss several security properties of the Stealth-5G-AKA protocol. Moreover, we compare the 5G-AKA [3] with relevant 3GPP-compatible protocols (5G-AKA’ [22], 5G-AKA-FS [23] and Stealth-5G-AKA) with respect to security properties and efficiency in terms of computation costs and communication costs.