NAME¶

ea_non_iid - Run Non-IID tests for entropy assesment

SYNOPSIS¶

ea_non_iid [-i|-c] [-a|-t] [-v] [-q] [-l <index>,<samples> ] <file_name> [bits_per_symbol]

DESCRIPTION¶

Run Non-IID tests for entropy assesment

<file_name>: Must be relative path to a binary file with at least 1 million entries (samples).

[bits_per_symbol]: Must be between 1-8, inclusive. By default this value is inferred from the data.

[-i|-c]: '-i' for initial entropy estimate, '-c' for conditioned sequential dataset entropy estimate. The initial entropy estimate is the default.

[-a|-t]: '-a' produces the 'H_bitstring' assessment using all read bits, '-t' truncates the bitstring used to produce the `H_bitstring` assessment to 1000000 bits. Test all data by default. Note: When testing binary data, no `H_bitstring` assessment is produced, so the `-a` and `-t` options produce the same results for the initial assessment of binary data.

-v: Optional verbosity flag for more output. Can be used multiple times.

-q: Quiet mode, less output to screen. This will override any verbose flags.

-l <index>,<samples> Read the <index> substring of length <samples>.

Samples are assumed to be packed into 8-bit values, where the least significant 'bits_per_symbol' bits constitute the symbol.

-i: Initial Entropy Estimate (Section 3.1.3)

Computes the initial entropy estimate H_I as described in Section 3.1.3 (not accounting for H_submitter) using the entropy estimators specified in Section 6.3. If 'bits_per_symbol' is greater than 1, the samples are also converted to bitstrings and assessed to create H_bitstring; for multi-bit symbols, two entropy estimates are computed: H_original and H_bitstring. Returns min(H_original, bits_per_symbol X H_bitstring). The initial entropy estimate H_I = min(H_submitter, H_original, bits_per_symbol X H_bitstring).

-c: Conditioned Sequential Dataset Entropy Estimate (Section 3.1.5.2)

Computes the entropy estimate per bit h' for the conditioned sequential dataset if the conditioning function is non-vetted. The samples are converted to a bitstring. Returns h' = min(H_bitstring).

-o: Set Output Type to JSON

Changes the output format to JSON and sets the file location for the output file.

--version: Prints tool version information

COPYRIGHT¶

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