In (RiveSO] the MD4 message digest algorithm was introduced taking an input message of arbitrary length and producing an output 128-bit message digest. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message. In this paper it is shown that if the three round MD4 algorithm...

Colonization of nontypeable Haemophilus influenzae (NTHi) in nasopharynx causes respiratory tract disease. In 80% of clinical isolates, HMW proteins are the major adhesions and induce protective antibodies in the hosts. Therefore, it can be used as a vaccine candidate. The aim of this study is designing and cloning of the conserved regions of NTHi hmw1 core binding domain.In this study, the sta...

In this paper, we study the verification of data integrity during peer-to-peer video streaming sessions. Challenges include the timing constraint of streaming, as well as the untrustworthiness of peers. We show the inadequacy of existing authentication protocols and propose a more efficient protocol which utilizes message digest and probabilistic verification. We then propose One Time Digest Pr...

HTTP Digest, as specified in RFC 2617, is known to be vulnerable to man-in-the-middle attacks if the client fails to authenticate the server in TLS, or if the same passwords are used for authentication in some other context without TLS. This is a general problem that exists not just with HTTP Digest, but also with other IETF protocols that use tunneled authentication. This document specifies ve...

let  be a banach algebra. let  be linear mappings on . first we demonstrate a theorem concerning the continuity of double derivations; especially that all of -double derivations are continuous on semi-simple banach algebras, in certain case. afterwards we define a new vocabulary called “-higher double derivation” and present a relation between this subject and derivations and finally give some ...

ABSTRACT We report on a study that aimed at establishing large soil–fungal culture collection spanning wide taxonomic diversity and systematically screening the for bacterial associations. Fungal cultures were isolated from soil samples obtained natural grassland in eastern Germany associations assessed by PCR-amplification sequencing of 16S rRNA. In addition, intraspecies genetic diversities s...

The problem to find the coordinates of n points on a line such that the pairwise distances of the points form a given multi-set of n 2 distances is known as Partial Digest problem, which occurs for instance in DNA physical mapping and de novo sequencing of proteins. Although Partial Digest was – as a combinatorial problem – already proposed in the 1930’s, its computational complexity is still u...