Proposing a PRNG based on a block cipher and cryptanalyzing its security

Cryptographic applications, such as data confidentiality and authentication, must be used for secure data communications. PRNG(Pseudo-Random Number Generator) is a basic cryptographic component which is supposed to be satisfied by criteria that we provable security and randomness properties. PRNG it used for generating an initial value or key value of cipher and security of whole cryptographic module depends on the security of PRNG. In this paper, we introduce an PRNG based on a block cipher and prove their security.