How to generate 500 random string keys in matlab?

I need to understand on how to generate 500 random strings in matlab. and to generate hash values for the same.

Answer 1

[Mohammad Sami]

You can use the randi function to generate integers corresponding to the ascii values you want to allow in your random string.

An example to generate a character of length of 100 is as follows.

randomstr = char(randi([33 126],1,100));

[Mohammad Sami]

There is a function DataHash available in Matlab Fileexchange that can help you calculate the hash values.

https://www.mathworks.com/matlabcentral/fileexchange/31272-datahash

[Benjamin Bax]

So using the randi() function, it certainly would obtain a string length of 100, but what if I need 500 random strings of length 100? Kindly let me know. I tried using a for but dint work.

[Stephen23]

char(randi([33 126],500,100))

Each row is one string. Simply access them using indexing, or split them up using num2cell.

[Mohammad Sami]

As stephen suggested. there are two options. you can either convert to cellstr or string as follows.

cellarr = cellstr(char(randi([33 126],500,100)))
stringarr = string(char(randi([33 126],500,100)))

[Benjamin Bax]

Hello thanks for the response, also how do we compute a hash function for string keys?

[Rik]

You pick a function that computes a hash (e.g. the one Mohammad linked), and you provide your char array as the input. Although since you are generating a random string anyway, why don't you generate a random array of 0-9A-F as a stand-in for your hash?

What are you trying to achieve?