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By Alexander Eiriksson, COO atÂ SecurStore Online Backup
SecurStore Online Data Backup Expert Tips: Compression and Encryption – The Challenges of Storage
As organizations learn to store and mine into the vast repositories of data generated by them and exploit the potential of information therein, they also grapple with growing data storage needs and fears of data loss. It is therefore, no wonder that at the core of most data storage and security considerations is a need to identify storage and compression challenges and to address them effectively.
Stored Data Encryption Challenges
The strength of the encryption and decryption algorithm is often impacted by the raison de etre of stored informationâ€”random access. No algorithm that prevents or undermines random access will be acceptable. Therefore, encryption algorithms for storage must ensure that each block of information is decipherable as a stand alone entity. However, on the flip side of this requirement, is the fact that this, makes the algorithm extremely weak and vulnerable and deciphering a single block will enable unauthorized entities to decipher other blocks at will.
The speed of encryption and decryption is impacted by factors and variables of the cryptographic system. Different cipher modes; coordination and initialization vectors and salt values used to modify the encryption method have a bearing on the speed of the process. While stream cipher modes encode data one bit at a time, the block cipher mode encodes one block at a time and is much slower in execution than the former.
Storage overheads too, have a bearing on the amount of encryption and the type of encryption that can be applied to stored data. Most often data on a storage disk is packed to full capacity. Additional data storage pertaining to the algorithm may require offloading of data from the disk or copying the data to a larger capacity disk before encryption.
Stored Data Compression Challenges
Moreover, data compression poses its own unique challenges:
From the discussion above, it is clear that one of the greatest ironies of storage technology is the inverse relationship between efficiency and security. Adding performance, security and reducing storage requirements is a challenge. While compressing data is good economics, securing data is a sign of business intelligence. One cannot be sacrificed for the other in the long run. The good news is that the growing demand for encrypted/compressed storage has focused industry attention on urgently finding the solution to the paradox. Perhaps the gestation period will not be long.
SecurStore provides a bespokeÂ offsite backup solution catered for customers who have both mission critical data and non-critical data, i.e., it provides customers with a secure & efficient backup and recovery solution which is sustainable over time. This coupled with agentless technology and advanced support for all environments and applications makes it suitable for any type of business, data centre provider or reseller.
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About the Author: Alexander Eiriksson is the COO of SecurStore, an Asigra basedÂ cloud backup provider certified by British Standards Institute for ISO 27001 and ANAB. Established in 1991, SecurStore provides businesses and enterprise customers a technically advanced solution in UK, Europe, USA, Africa, Asia and the Middle East.
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