Simple Matlab Code For Image Encryption and Decryption.

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Niharika 2014-4-13

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评论： Walter Roberson 2020-11-28

采纳的回答： Image Analyst

Can someone please post a simple matlab code for image encryption/decryption. Its urgent. Thank you. :)

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Walter Roberson 2020-11-28

Sorry, Dhayanithi Govindasamy, the steps you posted could easily have been extended past 56 bits key space, and so we are not permitted to host that discussion here due to US law.

Walter Roberson 2020-11-28

Images are not always 0 to 255. For example CT scan images are routinely int16 values, -32768 to +32767

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Image Analyst 2014-4-13

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编辑：Image Analyst 2014-4-13

I'm guessing you did not do a search of the File Exchange or you would not be asking this. Please click on this link: http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=encryption

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Abdiaziz Hussein 2019-11-10

I need a algorithm written in Matlab, for a Elgamal encryption which can encrypt and decrypt data stream of 32 words, with a key which has a modulus of 1024 vits

Walter Roberson 2019-11-10

https://www.mathworks.com/help/comm/ug/elgamal-public-key-cryptosystem.html

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Namitha H.S Gowda 2018-3-25

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Can someone please post a simple matlab code for image encryption/decryption

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Image Analyst 2018-11-13

Try a search for ITAR encryption rules You'll find lots of information

Here's one link: https://en.wikipedia.org/wiki/Export_of_cryptography_from_the_United_States

Even US universities need to get approval to do research into advancing the state of the art in encryption. Note that encryption is different than encoding, like encoding a video into a binary file.

Walter Roberson 2018-11-13

It is a frustrating restriction, and often makes little sense, but it is the law of the USA.

Another note: authentication is considered to be different than encryption. So something like a well-hidden watermark to verify copyright is legal. The technologies for watermarking are essentially the same as steganography (hiding messages), so the legal boundaries are far from clear.

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