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Unformatted text preview: (2) In order to obtain d, we should have ed mod z = 1; Next, we want to show that when e and z are not relatively prime, we can not get such z: Since e and z are not relatively prime, they should have a common factor, say a, Then, e = i*a, z = j*a, then ed = k*z + 1, means i*d*a-k*j*a=1, that is (id-kj)a=1, which is not possible. (3) alice and bob need send in a message containing two parts : 1) solution 2) random number (only alice and bob knows the random number. Of course, both parts need to be hashed with hd5 or other hashing function. (4) we can use ssl (transport layer) security to do authentication. A wep code will be assigned during the authentication process....
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- Spring '11