An important objective of security is to provide secrecy i e to hide the contents of a publicly exposed message from unauthorized recipients In contemporary private commercial and diplomatic applications however it is frequently of equal or even greater concern that the legitimate receiver be able to verify that the message in formation has not been modi ed during its transmission or storage or...

dysplasia epipysealis hemimelica (deh) is a rare disease, prevalence is one in 1000000. the incidence is unknown. its characteristics is abnormal cartilage growth accompanied by ossification of cartilages of epiphyses of long bones, bones of foot ankle and wrist. a hereditary or familial factor hasn't yet been known. occurrence in males is three times more than females. our case is a girl ...