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Codificación Base45

Recientemente me interesé en los códigos qr y me enteré por primera vez de la codificación base45 y CBOR. Tengo un fragmento de código a continuación, lo que me pregunto es si hay una forma de revertirlo para que pueda escribir un objeto json o cambiar el nombre y volver a convertirlo en su aspecto original.

 const base45 = require('base45') const cbor = require('cbor') const fs = require('fs') const jpeg = require('jpeg-js') const jsQR = require('jsqr') const pako = require('pako') // decode the qr code const greenpassJpeg = fs.readFileSync(__dirname + '/real-qr.jpg') const greenpassImageData = jpeg.decode(greenpassJpeg, { useTArray: true }) const decodedGreenpass = jsQR(greenpassImageData.data, greenpassImageData.width, greenpassImageData.height) const greenpassBody = decodedGreenpass.data.substr(4) const decodedData = base45.decode(greenpassBody) const output = pako.inflate(decodedData) const results = cbor.decodeAllSync(output); [headers1, headers2, cbor_data, signature] = results[0].value const greenpassData = cbor.decodeAllSync(cbor_data) const greenpassJson = JSON.stringify(greenpassData[0].get(-260).get (1), null, 2)
about 4 years ago · Juan Pablo Isaza
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