Patent ID: 8295486
Filing Date: 2012-10-23
Classification: H04L,H04W

Abstract:
1. A method of outputting an alert on a mobile device having a microprocessor, the method comprising: the microprocessor receiving data, chosen in a user interface, that identifies at least one first hash function; the microprocessor identifying a secure connection between the mobile device and a destination server; the microprocessor identifying a hash digest that is used to form a digital signature of an associated certificate, the associated certificate belonging to a certificate chain that comprises a certificate associated with the destination server, and the digital signature having been formed by generating the hash digest using a second hash function and then encrypting the hash digest; the microprocessor determining that whether the second hash function used to generate the digital signature is weak, based on the data that identifies the at least one first hash function; in response to the determining that the second hash function is weak, the microprocessor outputting an alert that indicates that the second hash function is weak; and the microprocessor repeating, for each hash digest of a plurality of hash digests being used to form a digital signature of an associated certificate belonging to the certificate chain, said identifying the hash digest and said outputting the alert.