How to convert an image for AES algorithm in Hexadecimal format input?

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Kushal Khaitan 2013-1-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/59206-how-to-convert-an-image-for-aes-algorithm-in-hexadecimal-format-input

评论： Radwa 2015-1-16

采纳的回答： Walter Roberson

I know how to convert the file in byte format by using

fid = fopen(FileName, 'r');

if fid == -1, error('Cannot open file'); end

data = fread(fid, Inf, '*uint8');

fclose(fid);

But I want the file in hexadecimal format. How to convert it in hexadecimal format??? If I use dec2hex then the size of the file is too much so i cannot use this. So, how to convert file in hexadecimal for AES.

Plz... help....thanx.

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Walter Roberson 2013-1-18

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https://ww2.mathworks.cn/matlabcentral/answers/59206-how-to-convert-an-image-for-aes-algorithm-in-hexadecimal-format-input#answer_71647

在 MATLAB Online 中打开

datahex = sprintf('%02x', data);

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Radwa 2015-1-16

How to decrease the bits( decrease the samplind from fopen?

I have DSPtoolbox

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