2
$\begingroup$

In cryptography, what does the Top notation mean? It resembles a capital T: T

In particular, I saw it in the follwing context:

$c = (c_1,c_2)^\top$

where $c_1$ and $c_2$ are homomorphic ciphertexts

$\endgroup$

1 Answer 1

8
$\begingroup$

Usually, $^\top$ denotes the transpose of a matrix or vector. Common variants include $^t$ and $^T$.


Hence $(c_1,c_2)^\top$ is just $\begin{pmatrix}c_1\\c_2\end{pmatrix}$. Such notation is often used to fit column vectors neatly into text.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.