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EXISTING SYSTEM

PROPOSED SYSTEM

 EXISTING CONCEPT:-

We can express arbitrarily general encryption policy our system also tolerates the compromise attack towards attributes Authorities, which is not covered in many existing works.

Those schemes introduce accountability such that malicious users’ keys can be traced. On the other hand, similar direction as ours can be found, who try to hide encryption policy in the cipher texts, but their solutions do not prevent the attribute disclosure in the key generation phase.

  PROPOSED CONCEPT:-

The proposed schemes are able to protect user’s privacy against each single authority. Partial information is disclosed in AnonyControl and no information is disclosed in Anonycontrol-F

We provide detailed analysis on security and performance to show feasibility of the scheme AnonyControl and AnonyControl-F.

EXISTING TECHNIQUE:-

Identity-Based Encryption.

PROPOSED TECHNIQUE:-

Attribute Based   Encryption.

TECHNIQUE DEFINITION:-

Techniques have been proposed to protect the Data contents privacy via access control. In which the sender of a message can specify an identity such that only a receiver with matching identity can decrypt it.

TECHNIQUE DEFINITION:-

It is a relatively recent approach that reconsiders the concept of public-key cryptography. In traditional public-key cryptography, a message is encrypted for a specific receiver using the receiver’s public-key.

DRAWBACKS:-

The compromise attack towards attributes authorities, which is not covered in many existing works.

Protect your user’s privacy authority.

ADVANTAGES:-

The compromise attack towards attributes authority’s covers in many propose work.

user’s privacy is secure in each single authority.