Patent ID: 9135428
Filing Date: 2015-09-15
Classification: G06F

Abstract:
1. A method for a cross system secure logon in a target system by using a first authentication system and a second authentication system, wherein a correct password is valid on the first authentication system and the second authentication system, the method comprising: receiving an input password at the first authentication system and at the second authentication system; based on the receiving, generating a first hash key based on the input password by using the first authentication system and concurrently generating a second hash key independent from the generating of the first hash key, based on the input password by using the second authentication system, wherein the first authentication system uses a first non-collision free hash algorithm unique to the first authentication system to generate the first hash key and the second authentication system uses a second non-collision free hash algorithm unique to the second authentication system to generate the second hash key; wherein the first non-collision free hash algorithm is distinct from the second non-collision free algorithm; creating a first predefined hash key by using the first non-collision free hash algorithm, and creating a second predefined hash key by using the second non-collision free hash algorithm; comparing in the first authentication system the first hash key with the first predefined hash key of the correct password stored in the first authentication system to determine whether the first hash key and first predefined hash key match and concurrently comparing in the second authentication system the second hash key with the second predefined hash key of the correct password stored in the second authentication system to determine whether the second hash key and second predefined hash key match; and authenticating the input password and granting access to the target system based on determining successful matches both in the comparing in the first authentication system and the comparing in the second authentication system.