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crypto-js calculates the sha256 value of the file

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Posted on 3/20/2019 11:16:46 AM | | |
1. To calculate the sha256 or md5 value of a file in the browser, the basic idea is to use the HTML5 FileReader interface to read the file to memory (readAsArrayBuffer), then get the binary content of the file, and then get the shaa256 or md5 value of the file.

2. The ArrayBuffer is a piece of memory, and the ArrayBuffer object is used to represent a generic, fixed-length binary data buffer.

3. CryptoJS (crypto.js) provides a wide variety of cryptographic algorithms for JavaScript. The algorithms currently supported include: MD5 SHA-1 SHA-256 AES Rabbit MARC4 HMAC HMAC-MD5 HMAC-SHA1...

First read the file from input type=file and then calculate the sha256 value using the following code.






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 Landlord| Posted on 8/14/2023 5:00:12 PM |
crypto-js is encrypted using MD5
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 Landlord| Posted on 10/29/2024 2:33:46 PM |
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