Sybil identification mechanism for fraudulent document detection through a cognitive based personal encryption key

A device comprising:

• processing circuitry configured to:
• analyze a set of writing samples provided by a user for evidence of each writing style trait of pre-defined writing style traits;
• assign a sub-trait score for each writing style trait, the sub-trait score indicating the amount of evidence of the writing style trait in the set of writing samples;
• generate a first key score by a key generating device associated with a writing profile of the user having a first account, the first key score indicating a first writing style of the user according to an aggregate sub-trait score being a mathematical combination of sub-trait scores of each writing style trait;
• generate a second key score by the key generating device based on a first document posted by the first account, the second key score indicating a second writing style exhibited by the first document;
• compare the first key score to the second key score to determine a degree of dissimilarity between the first writing style and the second writing style;
• assign authorship of the first document to the user based on the first key score and the second key score having a degree of dissimilarity below a threshold level;
• and
• monitor for a second document to be posted by the first account.

A computer program product comprising a non-transitory computer-readable medium having a set of instructions stored thereon which, when executed by a processor, causes the processor to perform a method comprising:

• analyzing a set of writing samples provided by a user for evidence of each writing style trait of pre-defined writing style traits;
• assigning a sub-trait score for each writing style trait, the sub-trait score indicating the amount of evidence of the writing style trait in the set of writing samples;
• generating a first key score by a key generating device associated with a writing profile of the user having a first account, the first key score indicating a first writing style of the user according to an aggregate sub-trait score being a mathematical combination of sub-trait scores of each writing style trait;
• generating a second key score by the key generating device based on a first document posted by the first account, the second key score indicating a second writing style exhibited by the first document;
• comparing the first key score to the second key score to determine a degree of dissimilarity between the first writing style and the second writing style;
• assigning authorship of the first document to the user based on the first key score and the second key score having a degree of dissimilarity below a threshold level;
• and
• monitoring for a second document to be posted by the first account.