Fast and Secure Protocol

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A screencast shows the download of the same file from the European Sequence Read Archive via wget / FTP and ascp / Aspera / FASP.

The fast and secure protocol ( FASP ) (Engl. Fast and secure protocol ) is an optimized for data traffic network protocol that of the Californian company Aspera Inc . was developed.

Similar to the connectionless UDP , FASP does not expect any feedback about every packet sent. Only the packages marked as really lost need to be requested again from the recipient. As a result, the high latency and packet loss mean that it does not suffer as much throughput losses as the TCP protocol.

Large companies like IBM and others use the protocol in different areas. Amazon would also like to use the protocol for uploading to data centers.

safety

The FASP protocol has integrated security mechanisms that do not affect the transmission speed. The encryption algorithms used are based exclusively on open standards. Before the transfer, SSH is used to authenticate the participants for key exchange. These randomly generated one-way keys are discarded at the end of the transmission.

The data is encrypted or decrypted with the AES-128 immediately before sending and after receiving . To counteract attacks by observing the encrypted information during long transmissions, the AES is operated in cipher feedback mode with a secret initialization vector for each block. In addition, there is also an integrity check of each data block. B. noticed a man-in-the-middle attack .

Individual evidence

  1. ↑ the short comings of TCP file transfer. (No longer available online.) Aspera Inc., archived from the original on September 22, 2009 ; Retrieved on September 16, 2009 (English, the text is not entirely neutral, but is based on facts and represents an understandable summary.). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / asperasoft.com
  2. ^ Aspera high-speed file transfer technology integrates with IBM Media Hub Solution Framework. July 9, 2008, accessed September 16, 2009 .
  3. ↑ technology partners. (No longer available online.) Aspera Inc., archived from the original on August 27, 2009 ; accessed on September 16, 2009 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / asperasoft.com
  4. ↑ Ben Schwan: Amazon uses faster transmission protocol for web services. In: heise online. Heise Zeitschriften Verlag, September 16, 2009, accessed on September 16, 2009 .

Web links