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ok so we talk about functional encryption so ah basically the functional encryption will give an introduction to functional ok so ah we have ah we have seen the public key encryption basically we have ah two party alice and bob so suppose alice wants to send the message to bob so alice the bob need to generate his own public key and private key pair and this ah public key has to be shared with the alice so that alice can send a message to bob if alice wants to send message m to bob then alice will encrypt this message using that bob public key and generate the ciphertext and send it to bob over the public channel so this is what is we know the public key encryption ah scheme and after receiving this ciphertext c what bob will do bob is having the corresponding secret key which is s k so bob will apply the decryption algorithm on this ciphertext using this secret key and ah ah get the message so this is the public key encryption scheme and the drawback is if if if this is the right key
