115 lines
2.8 KiB
Bash
115 lines
2.8 KiB
Bash
#!/bin/bash
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echo "========$(basename $0 .sh)========"
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echo "1.生成密钥"
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echo "2.安装密钥"
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echo "输入其他返回主页"
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declare pick
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read -p "请输入要选择的命令：" pick
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function open_key() {
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chmod 600 "$HOME/.ssh/authorized_keys"
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chmod 700 "$HOME/.ssh"
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sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
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declare pick2
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echo "是否关闭密码登录："
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read -p "输入 n 取消关闭：" pick2
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if [[ ! $pick2 =~ [Nn] ]];then
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sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication no/g' /etc/ssh/sshd_config
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fi
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systemctl restart sshd.service
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echo "密钥安装完成"
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}
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case $pick in
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'1')
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declare site="${HOME}/.ssh"
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read -p "请输入密钥安装位置,默认 ：${site}：" pick
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if [[ -d $pick ]]; then
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site=$pick
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elif [[ ! -z $pick ]];then
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echo "该路径没有文件夹"
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exit
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fi
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declare bit=""
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declare type=""
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declare phrase=""
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declare -A type_dick
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type_dick['rsa']="2048 4096"
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type_dick['ed25519']=""
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declare print_number=0
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declare -a print_arr
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for i in "${!type_dick[@]}" ; do
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print_number=$(( print_number+1 ))
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print_arr[$print_number]=$i
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echo "${print_number}.${i}"
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done
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read -p "请选择要生成的密钥类型：" pick
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if ! [[ $pick =~ [1-${#type_dick[@]}] ]]; then
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echo "选择错误"
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exit
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fi
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type=${print_arr[$pick]}
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if [ ! -z "${type_dick[$type]}" ]; then
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print_number=0
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echo "请选择密钥位大小"
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for i in ${type_dick[$type]} ; do
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print_number=$(( print_number+1 ))
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print_arr[$print_number]=$i
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echo "${print_number}.${i}"
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done
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read -p "请选择：" pick
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if ! [[ $pick =~ [1-${#print_arr[@]}] ]]; then
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echo "选择错误"
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exit
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fi
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bit="-b ${print_arr[$pick]}"
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fi
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read -p "是否开启密钥短语,输入y开启,请输入:" pick
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if [[ $pick =~ [Yy] ]]; then
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read -p "请输入要设置的密钥短语" phrase
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fi
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eval "ssh-keygen -t ${type} ${bit} -N '${phrase}' -f '${site}/key' -q"
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echo "密钥安装成功"
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echo "私钥：${site}/key"
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echo "公钥：${site}/key.pub"
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read -p "是否开启密钥登录,输入n取消：" pick
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if ! [[ $pick =~ [Nn] ]]; then
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mkdir -p "$HOME/.ssh"
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echo "${site}/key.pub" > "$HOME/.ssh/authorized_keys"
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open_key
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fi
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;;
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'2')
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declare key
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echo "请输入公钥或文件路径："
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echo "默认：$HOME/.ssh/id_rsa.pub"
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read -p "回车默认：" key
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if [[ -z $key ]];then
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key="$HOME/.ssh/id_rsa.pub"
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fi
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if [[ -f $key ]];then
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key=$(cat "$key")
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fi
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if [[ ! $key =~ ^ssh-(rsa|ecdsa-sha2-nistp[0-9]+|ed25519|dss) ]];then
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echo "公钥不合法"
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exit 1
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fi
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mkdir -p "$HOME/.ssh"
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echo "$key" > "$HOME/.ssh/authorized_keys"
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open_key
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esac
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