Creating custom datasets

[samyuktr]

I'm trying to create my own dataset in the tsv format for download using the GenFSGopher.pl script. In the dataset description I see the following -
Necessary fields: biosample_acc, strain, genbankAssembly, SRArun_acc, outbreak, dataSetName, suggestedReference, sha256sumAssembly, sha256sumRead1, sha256sumRead2

I currently only have SRA accessions for the files I need to download. Will I be able to download it with just that information? If not, how and where can i get the sha256sum fields from?