When and How to Aggregate Message Authentication Codes on Lossy Channels?

ePrint Report: When and How to Aggregate Message Authentication Codes on Lossy Channels?

Eric Wagner, Martin Serror, Klaus Wehrle, Martin Henze

Aggregation of message authentication codes (MACs) is a proven and efficient method to preserve valuable bandwidth in resource-constrained environments: Instead of appending a long authentication tag to each message, the integrity protection of multiple messages is aggregated into a single tag. However, while such aggregation saves bandwidth, a single lost message typically means that authentication information for multiple messages …

aggregation authentication bandwidth environments eprint report lossy macs message report resource tag wagner