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'''Srivastava codes''', formulated by Professor [[J. N. Srivastava]], form a class of parameterised [[Error detection and correction|error-correcting codes]] which are a special case of [[alternant code]]s.

==Definition==
The original ''Srivastava code'' over GF(''q'') of length ''n'' is defined by a parity check matrix ''H'' of [[alternant matrix|alternant]] form

:<math>\begin{bmatrix}
\frac{\alpha_1^\mu}{\alpha_1-w_1} & \cdots & \frac{\alpha_n^\mu}{\alpha_n-w_1} \\
\vdots & \ddots & \vdots \\
\frac{\alpha_1^\mu}{\alpha_1-w_s} & \cdots & \frac{\alpha_n^\mu}{\alpha_n-w_s} \\
\end{bmatrix}
</math>
where the α''i'' and ''z''''i'' are elements of GF(''q''''m'')

==Properties==
The parameters of this code are length ''n'', dimension ≥ ''n'' − ''m''s and minimum distance ≥ s + 1.

==Source==

[http://wikipedia.org/ http://wikipedia.org/]

[[Category:Cryptography]]
[[Category:Error-detecting codes]]
[[Category:Error-correcting codes]]
==See Also on BitcoinWiki==
* [[METOKEN]]
* [[Swiss Alps Mining]]
* [[Imigize]]
* [[DAFZO ICO]]
* [[WisePass]]

Srivastava code - Revision history

Admin: Created page with "'''Srivastava codes''', formulated by Professor J. N. Srivastava, form a class of parameterised error-correcting codes which are a speci..."