NETWORK SECURITY
DIGITAL SIGNATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In HMAC, the block obtained as a result of XOR operation between K+ and opad is ____ ?
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So
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Si
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Ki
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Ko
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Explanation:
Detailed explanation-1: -A hash algorithm alters or digests the message once more. HMAC uses generic cryptographic hash functions, such as SHA-1, MD5, or RIPEMD-128/60.
Detailed explanation-2: -What changes in HMAC are required in order to replace one underlying hash function with another? To replace a given hash function in an HMAC implementation, all that is required is to remove the existing hash function module and drop in the new module.
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