Fast and Secure Protocol: Difference between revisions

Revision as of 07:33, 1 May 2019

Revision as of 01:40, 14 June 2019

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[[File:FTP vs Aspera Comparison.webm|thumb|A screencast showing downloading the same file from the European Sequence Read Archive via wget/FTP and ascp/Aspera/FASP.]]

{{IPstack}}

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Similar to the [[Connectionless communication|connectionless]] [[User Datagram Protocol|UDP]] protocol, FASP does not expect any feedback on every [[Network packet|packet]] sent. Only the packets marked as really lost must be requested again by the recipient. As a result, it does not suffer as much loss of throughput as [[Transmission Control Protocol|TCP]] does on networks with high [[Latency (engineering)|latency]] or high [[packet loss]].<ref>{{cite web|url=http://downloads.asperasoft.com/en/technology/shortcomings_of_TCP_2/the_shortcomings_of_TCP_file_transfer_2|title=Aspera - High-speed file transfer software -|website=downloads.asperasoft.com}}</ref><ref>{{cite web|url=https://gcn.com/Articles/2014/05/15/FOSE-Data-transfer-protocol.aspx|title=FASP transfer protocol speeds data transmission to the cloud}}</ref>

Large organizations like [[IBM]],{{cn|date=January 2018}}, the [[European Nucleotide Archive]],<ref name="ena"></ref>, the US [[National Institutes of Health]] [[National Center for Biotechnology Information]]<ref>{{cite web|url=https://www.ncbi.nlm.nih.gov/projects/faspftp/1000genomes/|title=NCBI 1000 Genomes: Aspera Download}}</ref> and others<ref>{{cite web|url=http://asperasoft.com/partners/joint-partner-solutions/|title=Aspera Joint Partner Solutions|date=20 January 2018|website=asperasoft.com}}</ref> use the protocol in different areas. [[Amazon (company)|Amazon]] also wants to use the protocol for uploading to data centers.<ref>{{cite web|url=https://www.heise.de/newsticker/meldung/Amazon-nutzt-schnelleres-uebertragungsprotokoll-fuer-Web-Services-788844.html|title=Amazon nutzt schnelleres Übertragungsprotokoll für Web Services|last=Schwan|first=Ben|date=|website=heise online|archive-url=|archive-date=|dead-url=|access-date=}}</ref>

==Security{{cn|date=July 2018}}==

FASP has built-in security mechanisms that do not affect the transmission speed. The [[encryption]] [[Algorithm|algorithms]] used are based exclusively on [[Open standard|open standards]]. Before the transfer, [[SSH]] is used for [[key exchange]] for [[authentication]]. These randomly generated, one-way keys are discarded at the end of the transmission.

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==Protocol==

FASP's control [[Portport (computer networking)|Portport]] is TCP port 33001 —{{snd}} the same port that SSH uses. For data transfer, it begins at UDP port 33001, which increments with each additional connection thread.<ref name="register"/>

FASP's control [[Port (computer networking)|Port]] is TCP port 33001 — the same port that SSH uses. For data transfer, it begins at UDP port 33001, which increments with each additional connection thread.<ref name="register"/>

==See Also==