1650 |
form the network. Indeed, all scroll blocks' identifiers are |
form the network. Indeed, all scroll blocks' identifiers are |
1651 |
self-certifying. However, this not very efficient if we want to |
self-certifying. However, this not very efficient if we want to |
1652 |
obtain large amounts of data. One possibility is to use tree-based |
obtain large amounts of data. One possibility is to use tree-based |
1653 |
hash techiques (e.g., \cite{merkle87hashtree}, \cite{\cite{mohr02thex}), |
hash techiques (e.g., \cite{merkle87hashtree}, \cite{mohr02thex}), |
1654 |
which makes possible multisource downloads. Tree based hash functions can be used |
which makes possible multisource downloads. Tree based hash functions can be used |
1655 |
to verify fixed length segments of data file, instead of whole data file. |
to verify fixed length segments of data file, instead of whole data file. |
1656 |
Currently, Shareaza \cite{shareazaurl}, Overnet \cite{overneturl} and |
Currently, Shareaza \cite{shareazaurl}, Overnet \cite{overneturl} and |
1657 |
eDonkey2000 \cite{edonkey2kurl} uses tree based hashing for validating |
eDonkey2000 \cite{edonkey2kurl} uses tree based hashing for validating |
1658 |
segments of a data file. Another options for more efficient data |
segments of a data file. Another option, for more efficient data |
1659 |
fething is use multisource downloading (\cite{bittorrenturl}) and online |
fething, is use to standard multisource downloading \cite{bittorrenturl} and |
1660 |
codes (\cite{maymounkov03ratelesscodes}). |
online codes \cite{maymounkov03ratelesscodes}. |
1661 |
|
|
1662 |
Multisource downloads can be very useful when video, images or sound |
Multisource downloads can be very useful when media such as video, images |
1663 |
is stored using Storm storage model. However, further research is |
or sound is stored under Storm storage model. However, further research is |
1664 |
required. |
required. |
1665 |
|
|
1666 |
For more detailed discussion about Storm's storage model, see |
For more detailed discussion about Storm's storage model, see |