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Cooperative Intelligent Transport System EU Root Certification Authority includi...
Poder adjudicador:
European Commission, Joint Research Centre - Ispra (JRC-IPR)
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Información relativa a la pregunta
Reference to chapter 5.4.4 - (251) Log Management
With reference to chapter 5.4.4 - (251) of cellar_9a2fe08f-4580-11e9-a8ed-01aa75ed71a1.0005.02_DOC_4.pdf - The log management system. Is it possible to activate data hashing using different algorithms? The hash algorithm used can be of the type "Message Digest Hash Algorithm" or "Secure Hash Algorithm (SHA) Hash Algorithm"? with the possibility of verifying the unalterability of the data collected using a special tool? The solution can guarantee that, when hashing is enabled, any log event creates a hash file. These hash files are used to verify that the events have not been modified. Hash files are generated in memory before the files are written to disk, so the logs cannot be tampered with before the hash files are generated.
Yes, it is possible to use data hashing but this shall be of type SHA256 for RCA, EA or AA because of requirement (251) where the signing is based on key material from HSM and the possibility to reuse the algorithms defined in Table 4.