On Saturday, 2 December 2023 at 15:30:39 UTC, zoujiaqing wrote:
```Dstring appKey = "11111111111111111111111111111111111111111111111111111";ubyte[1024] data = cast(ubyte[])(appKey.dup[0..$]); sha256.put(data);
Your data has garbage at the end; try sha256.put(data[0..appKey.length])