ByteArray

ByteArray[{b1, b2, ...}] constructs a ByteArray object containing the byte values bi.

ByteArray["string"] constructs a ByteArray object by extracting byte values from a Base64-encoded string.

Examples

Create a byte array:

ByteArray[{72, 101, 108, 108, 111}]

From Base64 string:

ByteArray["SGVsbG8="]

Please visit the official Wolfram Language Reference for more details.