81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
var os = require('os')
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if (os.platform() === 'win32') {
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var chilkat = require('chilkat_node8_win32')
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} else if (os.platform() === 'linux') {
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if (os.arch() === 'arm') {
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var chilkat = require('chilkat_node8_arm')
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} else if (os.arch() == 'x86') {
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var chilkat = require('chilkat_node8_linux32')
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} else {
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var chilkat = require('chilkat_node8_linux64')
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}
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} else if (os.platform() == 'darwin') {
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var chilkat = require('chilkat_node8_macosx')
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}
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function chilkatExample () {
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var crypt = new chilkat.Crypt2()
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// Any string argument automatically begins the 30-day trial.
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var success = crypt.UnlockComponent('30-day trial')
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if (success !== true) {
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console.log(crypt.LastErrorText)
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return
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}
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crypt.CryptAlgorithm = 'aes'
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// CipherMode may be "ecb" or "cbc"
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crypt.CipherMode = 'cbc'
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// KeyLength may be 128, 192, 256
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crypt.KeyLength = 256
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// The padding scheme determines the contents of the bytes
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// that are added to pad the result to a multiple of the
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// encryption algorithm's block size. AES has a block
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// size of 16 bytes, so encrypted output is always
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// a multiple of 16.
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crypt.PaddingScheme = 0
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// An initialization vector is required if using CBC mode.
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// ECB mode does not use an IV.
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// The length of the IV is equal to the algorithm's block size.
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// It is NOT equal to the length of the key.
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var ivHex = '000102030405060708090A0B0C0D0E0F'
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crypt.SetEncodedIV(ivHex, 'hex')
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// The secret key must equal the size of the key. For
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// 256-bit encryption, the binary secret key is 32 bytes.
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// For 128-bit encryption, the binary secret key is 16 bytes.
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var keyHex = '000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F'
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crypt.SetEncodedKey(keyHex, 'hex')
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// For demonstration purposes, a different instance of the object will be used
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// for decryption.
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var decrypt = new chilkat.Crypt2()
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// All settings must match to be able to decrypt:
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decrypt.CryptAlgorithm = 'aes'
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decrypt.CipherMode = 'cbc'
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decrypt.KeyLength = 256
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decrypt.PaddingScheme = 0
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decrypt.SetEncodedIV(ivHex, 'hex')
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decrypt.SetEncodedKey(keyHex, 'hex')
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// Decrypt the .aes
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const inFile = './encodedData.zip.aes'
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const outFile = './decodedData.zip'
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console.log('Decodding...')
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console.log('This may take a while depending on how large your file is...')
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success = decrypt.CkDecryptFile(inFile, outFile)
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if (success === false) {
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console.log(decrypt.LastErrorText)
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return
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}
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console.log('Success!')
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}
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chilkatExample()
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