how to save the encrypted image into .png format

[zhhhhhh]

Dear developer,

I want to save the encrypted images into .png format for the further operate the encrypted image. I used to convert the np.array to unit8, but it seems doesn't work, I want to show the encrypted image, the saveEncryptedImg function in ImageCryptography model can save the encrypted image, but when I open it, it shows 'This file format does not appear to be supported'. The decrypted image has the same problem. Can you help me? Thank you very much.

[zhhhhhh]

I have change the value of bitlen to 8, and solve the problem. Thank you!

[chronarchitect]

I have chosen to save the encrypted object as an array because it works for any key length. By setting the bitlen variable to 8, you have encrypted the image in 8 bits. Larger key lengths provide better security and therefore I had chosen to store it as an array by design.

[Munirah-kh]

hello, I want to ask ,how to add an image to be encrepted by the code ?

[Munirah-kh]

Could you please help me, I tried to contact you at your email address also. Thank you

[zhhhhhh]

Set the value of n to 8 is ok. 

---Original--- From: "Munirah-kh"<[email protected]> Date: Thu, Jan 14, 2021 07:48 AM To: "chronarchitect/Homomorphic-Image-Encryption"<[email protected]>; Cc: "zhhhhhh"<[email protected]>;"Author"<[email protected]>; Subject: Re: [chronarchitect/Homomorphic-Image-Encryption] how to save the encrypted image into .png format (#1)

Could you please help me, I tried to contact you at your email address also. Thank you

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[Munirah-kh]

didn't work it damage the image I would like to encrypt the image for further use in ML

[zhhhhhh]

I will send my code for you this afternoon. 

---Original--- From: "Munirah-kh"<[email protected]> Date: Thu, Jan 14, 2021 07:57 AM To: "chronarchitect/Homomorphic-Image-Encryption"<[email protected]>; Cc: "zhhhhhh"<[email protected]>;"Author"<[email protected]>; Subject: Re: [chronarchitect/Homomorphic-Image-Encryption] how to save the encrypted image into .png format (#1)

didn't work it damage the image I would like to encrypt the image for further use in ML

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[Munirah-kh]

thank you appreciate it, will try it and tell you the result.

[Munirah-kh]

[email protected]

[Munirah-kh]

Hello I would like to ask Is this FHE or PHE thank you

[zhhhhhh]

This algorithm is based on Paillier algorithm, which only supports additive homomorphism. You can search 'paillier' for more details.

------------------ 原始邮件 ------------------ 发件人: "chronarchitect/Homomorphic-Image-Encryption" <[email protected]>; 发送时间: 2021年1月24日(星期天) 下午4:08 收件人: "chronarchitect/Homomorphic-Image-Encryption"<[email protected]>; 抄送: "zhhhhh"<[email protected]>;"Author"<[email protected]>; 主题: Re: [chronarchitect/Homomorphic-Image-Encryption] how to save the encrypted image into .png format (#1)

Hello I would like to ask Is this FHE or PHE thank you

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[tianxianhao]

This algorithm is based on Paillier algorithm, which only supports additive homomorphism. You can search 'paillier' for more details. … ------------------ 原始邮件 ------------------ 发件人: "chronarchitect/Homomorphic-Image-Encryption" <[email protected]>; 发送时间: 2021年1月24日(星期天) 下午4:08 收件人: "chronarchitect/Homomorphic-Image-Encryption"<[email protected]>; 抄送: "zhhhhh"<[email protected]>;"Author"<[email protected]>; 主题: Re: [chronarchitect/Homomorphic-Image-Encryption] how to save the encrypted image into .png format (#1) Hello I would like to ask Is this FHE or PHE thank you — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

Could you please send me your code? I also fail to open the png file even setting the bitlen to 8. And if i convert the type of cipher_array to 'uint8' and save as png image. it work but the decrypted img is not the original img. Most pixels in decrypted img is while pixel.

my email is [email protected] Thank you very much!

[niuniu1230]

@zhhhhhh @chronarchitect @tianxianhao

Sorry, I clicked the wrong button and created a new issue, if the project owner sees it, he can delete the wrong issue.

I also have the same problem "convert the type of cipher_array to 'uint8' and save as png image. it work but the decrypted img is not the It works but the decrypted img is not the original img." . How can I convert the type of cipher_array to image and decrypt the original image correctly?

[Surajkumar573]

I have change the value of bitlen to 8, and solve the problem. Thank you! Pprogram is compiled but shows no output. Can you please help me. It would be helpful.