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Paper 2014/552
Efficient Record-Level Keyless Signatures for Audit Logs
Ahto Buldas and Ahto Truu and Risto Laanoja and Rainer Gerhards
Abstract
We propose a log signing scheme that enables (a) verification of the integrity of the whole log, and (b) presentation of any record, along with a compact proof that the record has not been altered since the log was signed, without leaking any information about the contents of other records in the log. We give a formal proof of the security of the proposed scheme, discuss practical considerations, and provide an implementation case study.
Metadata
- Available format(s)
- Category
- Applications
- Publication info
- Published elsewhere. Minor revision. Nordsec 2014
- Keywords
- applied securitysecure loggingkeyless signaturescryptographic time-stampssyslogrsyslog
- Contact author(s)
- ahto truu @ guardtime com
- History
- 2014-07-18: received
- Short URL
- https://ia.cr/2014/552
- License
-
CC BY