Brightsign Object Reference Manual (FW 5.1) Bedienungsanleitung PDF herunterladen (Seite 139)

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zeroes). The IV will typically contain arbitrary characters and be in the form of an roByteArray, though it can also be

a string.

• Encrypt(key As Object, plaintext As Object) As roByteArray: Uses the specified key to encrypt

the plaintext parameter, which can be passed as either a string or an roByteArray.

• Decrypt(key As Object, cipher_text As Object) As roByteArray: 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.

Example:

' This is Case#4 from RFC3602

key = CreateObject("roByteArray")

iv = CreateObject("roByteArray")

plain = CreateObject("roByteArray")

key.FromHexString("56e47a38c5598974bc46903dba290349")

iv.FromHexString("8ce82eefbea0da3c44699ed7db51b7d9")

plain.FromHexString("a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1

c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedf")

c = CreateObject("roBlockCipher", { mode: "aes-128-cbc" })

c.SetIV(iv)

crypt = c.Encrypt(key, plain)

result = crypt.ToHexString()

expected =

UCase("c30e32ffedc0774e6aff6af0869f71aa0f3af07a9a31a9c684db207eb0ef8e4e35907aa632c3ffdf86

8bb7b29d3d46ad83ce9f9a102ee99d49a53e87f4c3da55")

' Decrypt example to recover the encrypted data

c.SetIV(iv)

roundtrip = c.Decrypt(key, crypt)

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Brightsign Object Reference Manual (FW 5.1) Bedienungsanleitung Seite 139