Key compromise impersonation refers to a security threat where an attacker gains unauthorized access to a cryptographic key and uses it to impersonate a legitimate user or system. This type of attack can severely undermine the integrity and confidentiality of communications, especially in scenarios where key agreement protocols are employed, such as during the establishment of shared secret keys. The effectiveness of such impersonation hinges on the trustworthiness of the key management process and the robustness of the underlying cryptographic techniques.
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