pyecsca.sca.trace.edit module¶

Provides functions for editing traces as if they were tapes you can trim, reverse, etc.

trim(trace, start=None, end=None)[source]¶

Trim the trace samples, output contains samples between the start and end indices.

Parameters:

trace¶ (Trace) – The trace to trim.
start¶ (Optional[int]) – Starting index (inclusive).
end¶ (Optional[int]) – Ending index (exclusive).

Return type:

Returns:

reverse(trace)[source]¶

Reverse the samples of the trace.

Parameters:: trace¶ (Trace) – The trace to reverse.
Return type:: Trace
Returns:

pad(trace, lengths, values=(0, 0))[source]¶

Pad the samples of the trace by values at the beginning and end.

Parameters:

trace¶ (Trace) – The trace to pad.
lengths¶ (Union[Tuple[int, int], int]) – How much to pad at the beginning and end, either symmetric (if integer) or asymmetric (if tuple).
values¶ (Union[Tuple[Any, Any], Any]) – What value to pad with, either symmetric or asymmetric (if tuple).

Return type:

Returns:

stretch(trace, length)[source]¶

Stretch (or squeeze) a trace linearly to fit a given length.

Parameters:

trace¶ (Trace) – The trace to stretch (or squeeze).
length¶ (int) – The length it should be.

Return type:

Returns: