PFAC cpp version code throws error with real virus signature

[Best Best]

Hi , 

In "input.txt" file , added some real virus signatures and executed PFAC code in CPU mode. Observed panic in "SORTING" logic code part. In code "SORT" API is used to sort the input pattern data.

Question :

1. Why sorting logic required to sort number of patterns before forming actual TRIE ? 

2. Is PFAC code tested with real virus signatures ? And also in this case , what is maximum count or size supported with respect to input pattern ?

3. PDF document mentioned pattern with "/n" or "/r" are not supported. Like this any other limitation on input pattern data ?

Thanks

Mohanraj

[Cheng-Hung Lin]

1. Sorting is not essential for building a trie. We sorted patterns to filter out replicated patterns.

2.The PFAC is used to match ASCII texts. The maximum number of patterns is determined by implementation. We have two different implementations with different limitations. You can refer to our documents or papers.

3. All limitations are listed in our documents.

Thanks for your interests in PFAC.

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