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Advances, Systems and Applications

Table 3 Comparison of RAIN with other approaches of splitting data

From: The design of a redundant array of independent net-storages for improved confidentiality in cloud computing

Approach Summary Misgivings
Singh et al.[32] A scheme for n-out-of-m secret sharing of data[33] Do not provide an algorithm for the actual splitting of the data to be stored.
Parakh and Kak[34] Another n-out-of-m scheme Do not discuss why their scheme should be better than e.g. the one proposed by Rabin[35].
Luna et al.[36] Yet another n-out-of-m scheme, but add an additional concept of Quality of Security (QoSec) to rate individual storage providers. Solution is tailored to a Grid computing scenario, not to commercial cloud operators.
RACS[37] Prevents vendor lock-in and data loss through failures by performing striping of data (in RAID-5 fashion) across multiple cloud providers Does not offer privacy or confidentiality.
Mnemosyne[38] Offers steganographic storage which not only hides data, but also prevents anyone from determining that there is anything hidden in the first place. Mnemosyne encrypts each block, and thus requires a key management system in addition to the information dispersal algorithm.
Free Haven[13] A collaborative distributed storage system, based on peer-to-peer file sharing principles. Does not provide a new solution for the anonymous communications channel, but uses a set of anonymous remailers as a basis.
OceanStore[14] Provides distributed storage Is not concerned with ensuring anonymity of the individual users.
ShareMind[16] Offers distributed privacy-preserving computations Is not focused on storage, only computation.