M. Roos, Integrating Time-Stamping and Notarization, Master's thesis, 1999. Home/Search Document Details and Download
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A Time Stamped Virtual WORM System - Apvrille, Hughes (2002) (Correct)
....along with blocks. step 2: secure time stamping 1. time stamp the last block hash, 2. digitally sign the time stamp, 3. store time stamp and its signature. 3.2. Down into time stamping mechanism Let us now have a closer look to the time stamping mechanism. From a generic point of view, [Roos99] defines a time stamp as a token that binds information about time with the bit string . Actually, this definition does not make any assumption about security. However, in the context of this paper, time stamps are useless if time cannot be certified within a given accuracy. So, basically, the ....
M. Roos, Integrating Time-Stamping and Notarization, Master's thesis, 1999.
Guaranteed Delivery for Secure Electronic Commerce and Payments - Herzberg (2002) (Correct)
....a sufficient number of authorities) to provide correct time stamp. This implies that a penetration of the DA, or sufficient number of DAs in the future, will allow forgery. Some works address this problem, by linking the timestamps so as to prevent backdating even if all DA keys are exposed [R99]. We do not address this issue, although our protocols can be used with forward secure signatures [BM99] for the same effect. Timestamping Aspects. There are also some differences in the timestamping aspects of our solution compared to previous time stamping solutions. We provide absolute ....
Meelis Roos, Integrating Time-Stamping and Notarization, Master Thesis, Tartu University, Faculty of Mathematics, May 1999.
Efficient Long-Term Validation of Digital Signatures - Ansper, Buldas, Roos.. (2000) Self-citation (Roos) (Correct)
.... StatusA ; Sig N fStatus A g (2) Note that the Notary does not check the validity of users signatures. A party who veri es the signature would check for the correctness anyway. Thereby, the signature veri cation by the Notary would give no additional assurance. This fact was noticed by Roos [16]. Provided that the public keys of CA and N are obtained authentically, the veri er should check that: Sig A fXg is properly veri able using the public key written in Cert A ; Cert A is signed by the CA; Status A con rms the validity of Cert A and comprises the signature Sig A fXg; ....
Meelis Roos. Integrating time-stamping and notarization. MSc Thesis, Tartu University, http://home.cyber.ee/mroos/thesis/. May 1999.
Efficient Long-Term Validation of Digital Signatures - Ansper, Buldas, Roos.. (2001) Self-citation (Roos) (Correct)
.... Status A ; Sig N fStatus A g (2) Note that the Notary does not check the validity of users signatures. A party who veri es the signature would check for the correctness anyway. Thereby, the signature veri cation by the Notary would give no additional assurance. This fact was noticed by Roos [16]. The Data Validation and Certi cation Service (DVCS) 1] PKIX Working Group) also merges on line validation and time stamping services. The service provider validates users signatures and checks the full certi cation path from the certi cate s issuer to a trusted point. Each request requires ....
Meelis Roos. Integrating time-stamping and notarization. May 1999. 15
A Time Stamped Virtual WORM System - Apvrille, Hughes (2002) (Correct)
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M. Roos, Integrating Time-Stamping and Notarization, Master's thesis, 1999.
Time-Stamping for Malaysia - Ismail (2001) (Correct)
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Roos, M. Integrating Time-Stamping and Notarization. Master's Thesis, May 1999, p. 6.
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