Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Triad-NVM: Persistent-Security for Integrity-Protected and Encrypted
  Non-Volatile Memories (NVMs)   Emerging Non-Volatile Memories (NVMs) are promising contenders for building
future memory systems. On the other side, unlike DRAM systems, NVMs can retain
data even after power loss and thus enlarge the attack surface. While data
encryption and integrity verification have been proposed earlier for DRAM
systems, protecting and recovering secure memories becomes more challenging
with persistent memory. Specifically, security metadata, e.g., encryption
counters and Merkle Tree data, should be securely persisted and recovered
across system reboots and during recovery from crashes. Not persisting updates
to security metadata can lead to data inconsistency, in addition to serious
security vulnerabilities.
  In this paper, we pioneer a new direction that explores persistency of both
Merkle Tree and encryption counters to enable secure recovery of
data-verifiable and encrypted memory systems. To this end, we coin a new
concept that we call Persistent-Security. We discuss the requirements for such
persistently secure systems, propose novel optimizations, and evaluate the
impact of the proposed relaxation schemes and optimizations on performance,
resilience and recovery time. To the best of our knowledge, our paper is the
first to discuss the persistence of security metadata in integrity-protected
NVM systems and provide corresponding optimizations. We define a set of
relaxation schemes that bring trade-offs between performance and recovery time
for large capacity NVM systems. Our results show that our proposed design,
Triad-NVM, can improve the throughput by an average of ~2x (relative to strict
persistence). Moreover, Triad-NVM maintains a recovery time of less than 4
seconds for an 8TB NVM system (30.6 seconds for 64TB), which is ~3648x faster
than a system without security metadata persistence.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
3
The categories of this paper are: physics