Generate CRC32 checksum of file swift

Question

I have a .zip file inside the project and I am transferring it to the external ESP32 via Bluetooth. But I need to send the CRC-32 checksum at the end of the sending file. I don't have any idea how to generate it.

Can anyone help me with how to do it in the right way?

Thanks in advance.

Does this answer help you: https://stackoverflow.com/a/60199267/1974224? — Cristik, May 26 '21 at 00:35
Yes, I did but It seems like the CryptoSwift is a better way to do it. Btw thanks for the link @Cristik — RushDroid, May 26 '21 at 11:44

RushDroid · Accepted Answer · 2021-05-26T17:31:44.427

2

So, I have found one amazing framework called CryptoSwift. This made my day. Here is how

Get file Data from the file path.

I have a function which returns Data from file name and type. And CryptoSwift has the extension of Data which converts the crc32 by calling simply .crc32()

and than call crc32()

let crcChecksum = Utils.sharedInstance.getFileData(forResource: "firmware", withExtension: "bin").crc32()

For mote detail.

https://github.com/krzyzanowskim/CryptoSwift

edited May 26 '21 at 17:31

answered May 26 '21 at 11:43

RushDroid

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Thanks @Cristik I have added few things – RushDroid May 26 '21 at 12:04

Generate CRC32 checksum of file swift

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