hmacBlockTransformerEncrypt method
Implementation
Uint8List hmacBlockTransformerEncrypt(Uint8List hmacKey, Uint8List data) {
final writer = WriterHelper();
final reader = ReaderHelper(data);
const blockSize = 1024 * 1024;
var blockIndex = 0;
while (true) {
final blockData = reader.readBytesUpTo(blockSize);
final calculatedHash = _hmacHashForBlock(hmacKey, blockIndex, blockData);
writer.writeBytes(calculatedHash);
writer.writeUint32(blockData.length);
if (blockData.isEmpty) {
// writer.writeUint32(0);
return writer.output.toBytes();
}
writer.writeBytes(blockData);
blockIndex++;
}
}