In coding theory, Srivastava codes, formulated by Professor J. N. Srivastava, form a class of parameterised error-correcting codes which are a special case of alternant codes.

The original Srivastava code over GF(q) of length n is defined by a parity check matrix H of alternant form

${\displaystyle {\begin{bmatrix}{\frac {\alpha _{1}^{\mu )){\alpha _{1}-w_{1))}&\cdots &{\frac {\alpha _{n}^{\mu )){\alpha _{n}-w_{1))}\\\vdots &\ddots &\vdots \\{\frac {\alpha _{1}^{\mu )){\alpha _{1}-w_{s))}&\cdots &{\frac {\alpha _{n}^{\mu )){\alpha _{n}-w_{s))}\\\end{bmatrix))}$

where the α_i and z_i are elements of GF(q^m)

The parameters of this code are length n, dimension ≥ n − ms and minimum distance ≥ s + 1.

• F.J. MacWilliams; N.J.A. Sloane (1977). The Theory of Error-Correcting Codes. North-Holland. pp. 357–360. ISBN 0-444-85193-3.