Can somebody explain in simple words. real life example light help and limitations of these schemes etc.

  • $\begingroup$ This sounds like a homework question. Is it? $\endgroup$ – pg1989 Sep 24 '14 at 18:20

With IBE the public key is a public bitstring as your email. A Key-authority issues a secret key that is tied with this public key.The owner of the secret key can only decrypt.

ABE entails more complex access control on decryption operation such as:"Only the owner of the secret key that corresponds to: Area:=Italy AND Age:<30 and Business:=Researcher" can decrypt. The last predicates are called the attributes

  • $\begingroup$ key $\mapsto$ keys $\:$ and $\:$ corresponds $\mapsto$ correspond $\:$ and $\:$ decrypts $\mapsto$ decrypt $\;\;\;\;$ $\endgroup$ – user991 Sep 25 '14 at 2:06
  • 1
    $\begingroup$ ABE can be seen as a generalization of IBE: IBE is an ABE with a single attribute namely the ID. In ABE a user is only able to decrypt, if he matches all the specified attribute values. $\endgroup$ – tylo Sep 25 '14 at 13:53
  • $\begingroup$ Can I tell that IBE works only with single public identifier and ABE supports multiple attributes with relationships (monotonous/non-monotonous) among them? is is right? $\endgroup$ – Bhanu Prakash Sep 26 '14 at 4:36

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.