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Providing assurance of where information came from is:

ASource accumulation
BSource authentication
CSource anonymisation
DSource amplification
Answer & Solution
Correct answer: B. Source authentication
1. Identity authentication is about the entity present now. 2. The other kind is about the origin of the data. 3. Source authentication provides assurance of the source of information to a receiving entity. 4. So the answer is source authentication. _Source: NIST SP 800-175B Rev. 1, 'Guideline for Using Cryptographic Standards in the Federal Government'_
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