リサイクル・シーケンシャルユース (B-101 ～ B-110, B-201 ～ B-207)

Math 201 B Midterm 1

Problem 1. Let C be a category with the zero object OC (that is, an object which is both universal and co-universal). In particular, for any pair of objects M and N , we have a distinguished morphism 0M,N ∈ HomC (M,N) , called the zero morphism, which is the composition of the unique morphisms M → OC and OC → N . Let M and N be objects in C and f ∈ HomC (M,N) . Recall that a kernel of f is a pa...

B . A . / B . Sc . First Semester Paper Code : ANT - B 101 End Semester Examination , 2014 For

هپاتیت B

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The 1976 seminal paper of Diie and Hellman is a landmark in the history of cryptography. They introduced the fundamental concepts of a trapdoor one-way function, a public-key cryptosystem, and a digital signature scheme. Moreover, they presented a protocol, the so-called Diie-Hellman protocol, allowing two parties who share no secret information initially, to generate a mutual secret key. This ...