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 Apr3 awarded Popular Question Mar19 awarded Popular Question Mar16 awarded Critic Mar16 comment CCA-attack is possible in RSA, but how the decryption key $d$ is known to anyone i am talking about text-book RSA,and CCA-attack on it. Mar16 revised CCA-attack is possible in RSA, but how the decryption key $d$ is known to anyone added 12 characters in body Mar16 asked CCA-attack is possible in RSA, but how the decryption key $d$ is known to anyone Feb27 asked Drawback of ElGamal encryption Feb24 comment In a additive group is it hard to calculate $bg$ given $ag, g, abg$ yes you are correct a,b are integers not element of group. Feb23 revised In a additive group is it hard to calculate $bg$ given $ag, g, abg$ deleted 9 characters in body; edited tags Feb23 asked In a additive group is it hard to calculate $bg$ given $ag, g, abg$ Feb9 revised Identity-Based Encryption consist of four algorithms. Extract phase is one of them and it is done by PKG or receiver? added 1 character in body Feb9 reviewed Approve Identity-Based Encryption consist of four algorithms. Extract phase is one of them and it is done by PKG or receiver? Feb9 comment Identity-Based Encryption consist of four algorithms. Extract phase is one of them and it is done by PKG or receiver? Are you saying that in IBE, PKG is not necessary. Feb9 asked Identity-Based Encryption consist of four algorithms. Extract phase is one of them and it is done by PKG or receiver? Feb8 comment In a group, is it hard to calculate the base $g$ given $g^a$ and $a$? is it mean that in cyclic group it can be calculated by finding inverse of a, but in general like RSA encryption it is not true. Feb8 comment In a group, is it hard to calculate the base $g$ given $g^a$ and $a$? correct. but in modulo arithmetic is it correct? Feb8 asked In a group, is it hard to calculate the base $g$ given $g^a$ and $a$? Oct20 awarded Popular Question Jul25 awarded Custodian Jul21 awarded Commentator