Secure Bank Transaction System Using Digital Signature Algorithm

In computer and network systems, the privateaccess systems use cryptosystems that provide to certain andensure data of information that are authentic and secure. Thispaper will develop the secure bank transaction system toprovide authentication , non-repudiation and integrity ofmessage using with Public key digital signature algorithm.Digital Signature Algorithm (DSA) is used for key generation,signature generation and signature verification. In signaturegeneration, the input message is hashed with secure hashalgorithm -1(SHA-1) and produces 160 bits of message digestoutput. The hash value and customer’s private key operate indigital signature algorithm and then generates digital signature.These signature and message are sent to bank through thenetwork. In signature verification, the received message ishashed with SHA-1. The hash value, received digital signatureand customer’s public key operate in DSA algorithm andproduce signature, If the two signatures are the same, thesignature is verified