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Proceedings of the 2002 ACM workshop on XML security -
XML has become a well-established format for information exchange. Several formats have been defined to secure XML data, such as XML Digital Signatures, XML Encryption and XKMS. In recent work by ETSI on XML digital signatures conforming to European legislation, time-stamps play a key role for qualified digital signatures. Some ASN.1-based formats for time-stamp protocols have been defined within IETF and ISO/IEC. In this paper, we investigate how the wide range of time-stamping protocols indoi:10.1145/764800.764802 fatcat:mnxyvfk445g2rckrvxl6f6ztlu