%0 Journal Article %T DETERMIN LARGE PRIME NUMBERS TO COMPUTE RSA SYSTEM PARAMETERS %A Erica Mang %A Ioan Mang %J Journal of Computer Science and Control Systems %D 2008 %I Editura Universit??ii din Oradea %X Cryptography, the secret writing, is probably same old as writing itself and has applications in data security insurance. There are cryptosystems where the encipher algorithm can be public. These are public key algorithms. Research on public key algorithms has been concerned with security aspects. The results of this research have induced sufficient confidence to apply public key cryptography a larger scale. The most used and checked public key-based cryptosystem was find by Rivest, Shamir and Adleman, so called RSA system. This paper shows the RSA algorithm. We have realised a program that is able to determine prime numbers with over 100 digits and compute RSA system parameters. %K public-key algorithms %K prime numbers %K RSA algorithm %U http://electroinf.uoradea.ro/reviste%20CSCS/documente/JCSCS_2008/JCSCS_2008_10_MangE_1.pdf