question: send public key request to certain user concode_field_sep PrivateKey privateKey concode_elem_sep String encoding concode_elem_sep String transformation concode_elem_sep PublicKey publicKey concode_field_sep PublicKey createPublicKey concode_elem_sep void setKeyForUser concode_elem_sep String encrypt concode_elem_sep void sendPublicKey concode_elem_sep PublicKey getPublicKey concode_elem_sep String decrypt
target: void function ( String arg0 ) { ChatClient . getInstance ( ) . sendSystemData ( "srini_string" + arg0 + "srini_string" + ChatClient . getInstance ( ) . getUsername ( ) + "srini_string" ) ; }