Abstract: A node in a mesh network compresses certificates by receiving a compression dictionary including at least a static portion, the compression dictionary storing associations between entries in certificates and indices in corresponding compressed certificates; in response to identifying a first entry in a first certificate that does not have an association in the compression dictionary, storing, by the node, a first association in the compression dictionary between the first entry and a first index; compressing, based on the first association and at least one second association stored in the static portion of the compression dictionary, the first certificate to generate a first compressed certificate; and transmitting the first compressed certificate and the compression dictionary to a neighboring node.

Abstract: A battery-powered device (BPD) node compresses certificate chains to generate compressed certificate chains. The BPD node includes a compression dictionary that indexes various data entries that occur across many certificate chains and/or repeat within a particular certificate chain. The BPD node compresses a given certificate chain by replacing data entries within the given certificate chain with indices to corresponding data entries in the compression dictionary. The indices are smaller in size than the corresponding data entries. A neighboring BPD node also includes the compression dictionary and decompresses a compressed certificate chain by replacing indices included in the compressed certificate chain with the indexed data entries stored in the compression dictionary.

Abstract: A battery-powered device (BPD) node compresses certificate chains to generate compressed certificate chains. The BPD node includes a compression dictionary that indexes various data entries that occur across many certificate chains and/or repeat within a particular certificate chain. The BPD node compresses a given certificate chain by replacing data entries within the given certificate chain with indices to corresponding data entries in the compression dictionary. The indices are smaller in size than the corresponding data entries. A neighboring BPD node also includes the compression dictionary and decompresses a compressed certificate chain by replacing indices included in the compressed certificate chain with the indexed data entries stored in the compression dictionary.