  Many IoT use cases demand both secure storage and secure communication.
Resource-constrained devices cannot afford having one set of crypto protocols
for storage and another for communication. Lightweight application layer
security standards are being developed for IoT communication. Extending these
protocols for secure storage can significantly reduce communication latency and
local processing.
  We present BLEND, combining secure storage and communication by storing IoT
data as pre-computed encrypted network packets. Unlike local methods, BLEND not
only eliminates separate crypto for secure storage needs, but also eliminates a
need for real-time crypto operations, reducing the communication latency
significantly. Our evaluation shows that compared with a local solution, BLEND
reduces send latency from 630 microseconds to 110 microseconds per packet.
BLEND enables PKI based key management while being sufficiently lightweight for
IoT. BLEND doesn't need modifications to communication standards used when
extended for secure storage, and can therefore preserve underlying protocols'
security guarantees.
