| Panel |
|---|
| borderColor | #3D3D3D |
|---|
| bgColor | #F4F4F4 |
|---|
| titleColor | #3D3D3D |
|---|
| borderWidth | 0 |
|---|
| titleBGColor | #3D3D3D |
|---|
| borderStyle | solid |
|---|
|
ON THIS PAGE |
| Insert excerpt |
|---|
| BrightScript Version Navigation Menu |
|---|
| BrightScript Version Navigation Menu |
|---|
| nopanel | true |
|---|
|
This object provides a means for symmetric block encryption. It currently supports AES and CBC ciphers, at block sizes of 128, 192, or 256 bits
. The JavaScript equivalent is the Node.js Crypto API.
Object Creation: The roBlockCipher object is created with an associative array representing a set of parameters.
...
Uses the specified key to decrypt cipher text, which should be passed as an roByteArray. Because the cipher text is encrypted, it can contain any character.
| Code Block |
|---|
|
' This is Case#4 from RFC3602
key = CreateObject("roByteArray")
iv = CreateObject("roByteArray")
plain = CreateObject("roByteArray")
key.FromHexString("56e47a38c5598974bc46903dba290349")
iv.FromHexString("8ce82eefbea0da3c44699ed7db51b7d9") plain.FromHexString("a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedf")
c = CreateObject("roBlockCipher", { mode: "aes-128-cbc" })
c.SetIV(iv)
crypt = c.Encrypt(key, plain)
result = crypt.ToHexString()
expected = UCase("c30e32ffedc0774e6aff6af0869f71aa0f3af07a9a31a9c684db207eb0ef8e4e35907aa632c3ffdf868bb7b29d3d46ad83ce9f9a102ee99d49a53e87f4c3da55")
' Decrypt example to recover the encrypted data
c.SetIV(iv)
roundtrip = c.Decrypt(key, crypt)
' Second example selecting PKCS#7 padding
c = CreateObject("roBlockCipher", { mode: "aes-128-cbc", padding: "pkcs7" }) |
...