RSA ( Rivest Shamir Adleman )is crypthograph system that used to give a secret information and digital signature . Its security based on Integer Factorization Problem (IFP). RSA uses an asymetric key. RSA was created by Rivest, Shamir, and Adleman in 1977. Every user have a pair of key, public key and private key. Public key (e) . You may choose any number for e with these requirements, 1< e <Æ (n), where Æ (n)= (p-1) (q-1) ( p and q are first-rate), gcd (e,Æ (n))=1 (gcd= greatest common divisor). Private key (d). d=(1/e) mod(Æ (n)) Encyption (C) . C=Mª mod(n), a = e (public key), n=pq Descryption (D) . D=C° mod(n), o = d (private key
Data logger external EEPROM function based on new Renesus microcontroller. This module has been tested on the renesus develop board.EEPROM was programmed with temperature calibration beforehand.
Data logger Serial Communication function based on new Renesus microcontroller. This module has been tested on the renesus develop board with RS232 cable.
Data logger Power transision function switch among different power modes based on new Renesus microcontroller. This module has been tested on the renesus develop board with different LED to indicate different power modes.
