CipherStreamHex Method

public static string Hex(
	string inputHex,
	string keyHex,
	string ivHex,
	int counter,
	CipherStreamAlgorithm streamAlg
)

Public Shared Function Hex ( 
	inputHex As String,
	keyHex As String,
	ivHex As String,
	counter As Integer,
	streamAlg As CipherStreamAlgorithm
) As String

Parameters

inputHex  String

Hex-encoded input data

keyHex  String

Hex-encoded key

ivHex  String

Hex-encoded Initialization Vector (IV, nonce) or "" for Arcfour

counter  Int32

Counter value for ChaCha20 only, otherwise ignored. Use 0 for default.

streamAlg  CipherStreamAlgorithm

Stream cipher algorithm

Return Value

• Arcfour: any length key; specify null for IV.
• Salsa20: key must be exactly 16 or 32 bytes and IV exactly 8 bytes long.
• ChaCha20: key must be exactly 16 or 32 bytes and IV exactly 8, 12, or 16 bytes long. Counter is ignored if IV is 16 bytes.

Reference