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Carol's OCSP responder confirms that Alice's certificate is still OK, and returns a signed, successful 'OCSP response' to Bob. Bob cryptographically verifies Carol's signed response. Bob has stored Carol's public key some time before this transaction. Bob uses Carol's public key to verify Carol's response. Bob completes the transaction with Alice.
Browsers and other relying parties might use CRLs, or might use alternate certificate revocation technologies (such as OCSP) [4] [5] or CRLSets (a dataset derived from CRLs [6]) to check certificate revocation status. Note that OCSP is falling out of favor due to privacy and performance concerns [7] [8] [9]. Subscribers and other parties can ...
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OCSP stapling is designed to reduce the cost of an OCSP validation, both for the client and the OCSP responder, especially for large sites serving many simultaneous users. However, OCSP stapling supports only one OCSP response at a time, which is insufficient for certificate chains with intermediate CA certs. [26] [27]
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WASHINGTON (Reuters) - A senior U.S. official who is among those working to evict alleged Chinese hackers from American telecom companies has a word of advice for his fellow Americans: Use encryption.
Today’s news in 10 minutes. August 20, 2023 at 4:40 PM. August 21, 2023. On today’s episode of CNN 10, Hurricane Hilary slams into the West Coast. Then, a race for the lunar south pole. Coy ...