chen bojian chenbojian

Create Root CA (Done once)

Last update: Nov 2025.

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key

Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

	// 已知有如下可用类型

	public interface ITextWriter {
	void Write(string text);
	void Write(string text, int startIndex, int count);
	void Write(char[] chars);
	void Write(char[] chars, int startIndex, int count);
	}

	// 需实现以下类型，输出value对应的字符串（不考虑本地化）。