Controlling electronic access by portable electronic device responsive to sequence of scanned fingerprints forming pin

A computer program product comprising:

• a non-transitory computer readable medium storing program code that is executed by a processor of an electronic device to perform operations comprising:
• receiving a personal identification number (PIN) comprising a sequence of numeric digits;
• repeating for each digit of the PIN,
• receiving from a fingerprint detector sensor a digital fingerprint scan of a finger, and
• registering the digital fingerprint scan of the finger associated with the digit of the PIN;
• initializing a sequence of PIN digit counters;
• setting a PIN digit pointer to reference a first one of the PIN digit counters in the sequence;
• receiving from the fingerprint detector sensor a digital fingerprint scan of a finger;
• when the digital fingerprint scan matches the digital fingerprint scan that was registered for the digit of the PIN which corresponds to the PIN digit counter referenced by the PIN digit pointer, incrementing the PIN digit counter referenced by the PIN digit pointer;
• when the digital fingerprint scan does not match the digital fingerprint scan that was registered for the digit of the PIN which corresponds to the PIN digit counter referenced by the PIN digit pointer, but does match the digital fingerprint scan that was registered for the next one of the PIN digits in the sequence, moving the PIN digit pointer to reference the next one of the PIN digit counters in the sequence, and incrementing the next one of the PIN digit counters that is referenced by the PIN digit pointer;
• and
• when a PIN entry completion condition is satisfied, selectively allowing electronic access by a user to an application processed by the processor of the electronic device based on determining whether the sequence of PIN digit counters contain values matching the PIN.

An electronic device, comprising:

• a fingerprint detector sensor;
• a processor;
• and
• a memory coupled to the processor and storing computer readable program code that when executed by the processor causes the processor to perform operations comprising:
• receiving a personal identification number (PIN) comprising a sequence of numeric digits;
• repeating for each digit of the PIN,
• receiving from the fingerprint detector sensor a digital fingerprint scan of a finger, and
• registering the digital fingerprint scan of the finger associated with the digit of the PIN;
• initializing a sequence of PIN digit counters;
• setting a PIN digit pointer to reference a first one of the PIN digit counters in the sequence;
• receiving from the fingerprint detector sensor a digital fingerprint scan of a finger;
• when the digital fingerprint scan matches the digital fingerprint scan that was registered for the digit of the PIN which corresponds to the PIN digit counter referenced by the PIN digit pointer, incrementing the PIN digit counter referenced by the PIN digit pointer;
• when the digital fingerprint scan does not match the digital fingerprint scan that was registered for the digit of the PIN which corresponds to the PIN digit counter referenced by the PIN digit pointer, but does match the digital fingerprint scan that was registered for the next one of the PIN digits in the sequence, moving the PIN digit pointer to reference the next one of the PIN digit counters in the sequence, and incrementing the next one of the PIN digit counters that is referenced by the PIN digit pointer;
• and
• when a PIN entry completion condition is satisfied, selectively allowing electronic access by a user to an application processed by the processor based on determining whether the sequence of PIN digit counters contain values matching the PIN.