我正在尝试在 MSys2 Windows 7 环境下使用以下 OpenSSL v1.0.2 命令创建请求：$ openssl req -out ios.csr -new -newkey rsa:2048 -keyout ios-private.key
我得到以下输出，之后进程冻结：
Loading 'screen' into random state - done
Generating a 2048 bit RSA private key
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