This should be ranked as A. This is recognised as a top venue for blockchain research, and has higher ranking than many other A security conferences according to different rankings. For example, Arnetminer [1] ranks FC higher than several very good A-rank conferences, including DSN, RAID, ESORICS, TCC, SRDS, and TrustCom. Also, according to Google scholar metrics [2], FC is ranked the 10th amongst all security conferences and journals, and the 7th amongst all security conferences. (All of the top 6 conferences are ranked A* on Core.) This is also confirmed by another popular ranking [3]. Further more, there are many influential works come from this conference, and the PCs are world leading researchers in the field. Top professors in the area are also attending the conference regularly. [1] Aminer https://aminer.org/ranks/conf [2] Google Scholar Metrics. https://scholar.google.com/citations?view_op=top_venues&hl=en&vq=eng_computersecuritycryptography [3] http://jianying.space/conference-ranking.html

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This conference is welcoming to new attendees such as postgraduate students:
Referees for this conference provide high quality detailed feedback:
The conference program facilitates networking:
There is a culture of interaction and feedback following presentations:
The conference is routinely attended by top people in the area:
Overall, attending this conference is worthwhile: