RSA digital signature algorithm

RSA digital signature algorithm is actually through a hash function to achieve. The digital signature feature is that it represents the characteristics of the document, if the document changed, the value of the digital signature will also change. The document will be different in different digital signature. One of the most simple hash function is to document the accumulation phase binary code, the last of a number of places. Hash function to send data on the two sides are open only by adding digital signatures and authentication in order to achieve genuine public safety network transmission.