The operation results of the official example are as follows
signature:
KiCKfOe0805Ags4mZ4DWS9rSDPGt6BNtySZDdOhecbimU38GNPyBAFhNof9F/7RXaheLpi9rGZmpZgZ1/Pm4yfNTsDaArnxZcSfl5P2TvJWyrdDtwp7gnQPlB/i4tB+dLLRBvGIlGdDL4KIejWLhdZ++teHTyuLYtTcG/0iLwLVIwdypIe4J38rDK5hTh/TsPPHGgHHb94xziNvMp9wQkN+0ZVsHqWd+YbEyiDlU42wo+S0uK/OdyH6SwFOIcZbNHRvVK/wy6Yt4xh7AGEJ0j6FvVe/L8L2PNWQ9wwhjZUiylGkVxwR2CpgaFkR657YrO7CMhaZpMvFjCBUugBwrbQ==
The correct result should be:
U8g8gV5iwPcInT75+Rx4odEvGHx7zlEWW+NUrIX/Zato6cZJ0CiktW9pzQ3I0MTxiLz7ZFzeZttD3dhPaqGwK3M9G0pkY00oyYjlsA+X5V6iI0km+GpoeL8NpEvzCTRRjpnHmIPpT9B/u5FcPZxURlqIQBIfRgHaX4205xTYeVFoAu5Ob45I1KWpBOlxTprq1AjrqjJnhb0WUDQkPtGvzvfbqiZt1UUyMOqjaPSsfJ5ft5ZIUTV/gFqNxBqoUVKIlHot0ofRJqFzE8c92Nt6gdocZSXmFfCU3/ZZ5bv79KEqlcS4p3LnvGZ6+LmKg0/4YH6nhrkHzZMBUiZRnGKRJw==
If it is in English, the result is correct; if it is in Chinese, Thai, Japanese, etc., the result is wrong
I use Chinese characters “中”
It is also an official example. Click the [ sign ] button directly
-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----
Looking forward to your reply, thank you