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CC is simply said, an on demand delivery of IT resources over the Internet. These resources include .......
When it comes to cloud storage, security is the most crucial aspect. And when we talk about security, 3 major things that come to mind are CIA
In order to cater to the Confidentiality of the Data, encryption is one of the solutions.
Define Encryption...
I will now briefly describe the study that has been done reviewing the existing methods.
7. NA
8. In this paper, the authors have implemented hybrid cryptography using DES and RSA. The data is first encrypted using DES and then again encrypted using RSA. This double encryption makes it highly secure but it is very resource heavy for large scale cloud.
9. In this paper, they have followed a defense in depth approach by designing an encryption system to safely upload the medical data to the cloud. Then an IDS using ML to detect malcious attempts to access the data. Once detected, the access is blocked towards the system and the attacker is diverted to a honeypot where there activties are monitored. Here a lot of surface is secured but when it comes to the encryption technique that they have used, it is again resource intensive.
10. In this paper,
AES + Blowfish encryption then using MD5 to create a digital fingerprint of the key to verify its integrity.
11. IKGSR Improved Key Generation Scheme of RSA where instead of two, four prime numbers are used to generate private and public key. Addtionally, stego is used to store and transmit key. Key management becomes complex here due to many methods being used and using stego for so many keys is hard.
12. NA
13. Split data into 3 and use 3 diff encryption algorithms
14. RFID tags, AES for enc, ECC to secure key exchange
15. Done
16. NA
17. PRE
18. Attribute based PRE where a policy is used to generate ReEnc Key. Policy consists of all the attributes.
Alice satisfies P1 hence decrypts. Generate new ReEnc Key with P2 (Insurance, Docs)
ReEnc C1 to C2 for Insurance Comp
ReEnc C1 to C3 for Docs
19.
So to sum up, the existing encryption types can be simply described as per their speed and security level as follows
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