A company is developing a security policy to ensure that OSPF routing updates are authenticated with a key. What can be used to achieve the task?
Explanation: The task to ensure that routing updates are authenticated is data origin authentication, which can be implemented using HMAC. HMAC is MD5 or SHA-1 plus a secret key. AES and 3DES are two encryption algorithms. MD5 and SHA-1 can be used to ensure data integrity, but not authentication.
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