Fast and Secure Protocol: Difference between revisions

Revision as of 19:43, 25 March 2020

Revision as of 04:53, 24 April 2020

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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]],{{cncitation needed|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|website=heise online}}</ref>

==Security{{cncitation needed|date=July 2018}}==

FASP has built-in security mechanisms that do not affect the transmission speed. The [[encryption]] [[Algorithm|algorithmsalgorithm]]s used are based exclusively on [[Openopen standard|open standards]]s. 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.

The data is encrypted or decrypted immediately before sending and receiving with the [[Advanced Encryption Standard|AES-128]]. To counteract attacks by monitoring the encrypted information during long transfers, the AES is operated in [[cipher feedback mode]] with a secret [[initialization vector]] for each block. In addition, an integrity check of each [[Block (data storage)|data block]] takes place, in which case, for example, a [[man-in-the-middle attack]] would be noticed.

==Protocol==

FASP's control [[port (computer networking)|port]] is TCP port 22{{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"/>

==See Alsoalso==

* [[Tsunami UDP Protocol]]

* [[UDP-based Data Transfer Protocol|UDP-based Data Transfer Protocol (UDT)]]