CH-J Tools通过 SSH 管理服务器
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示例 03 · RSA 2048

RSA 密钥:支持最广泛的 SSH 密钥类型。签名使用 rsa-sha2-512;当前 OpenSSH 已禁用使用 SHA-1 的旧式 ssh-rsa 签名。密钥越大,速度越慢,但安全余量也越大。

密钥概览

密钥类型RSA 2048
SSH 算法名称ssh-rsa · signatures rsa-sha2-512
支持情况广泛支持;当前 OpenSSH 要求使用 RSA-SHA2 签名(rsa-sha2-256 或 rsa-sha2-512),因为使用 SHA-1 的 ssh-rsa 签名自 OpenSSH 8.8 起已默认禁用
私钥格式OpenSSH (openssh-key-v1), unencrypted
指纹SHA256:PRraUEAOnitXGs/jNcwuT0k+04aW793ywqkTFmFmY5g

公钥

authorized_keys 格式的公钥。将其添加到 allowed_signers 文件中,即可验证下方的签名。

下载 → 400 字节

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDc4P+CF2222OualumZ3xONMK36UO/qd02Dx0e+i/tdNBwJBLjzs28RNEL0p+SS3IOpMSgEI1C3mo2CFKnKYRnwWM4F6pwdGGTyBYBLhrC5SdMUJCfwJC4WZPo9DW9+E08BTBBmySWceg2tH4AcDkGTGWVhTAsTPAkva65+YukFR+sTr307b5R64A5amhHxVuBIyoP2Twsao5K3bdpAARsDYDFPOF3597vVNJ+4l6juLJ2io32fRaiCaCOHp01+ihkH0wkNGhDWGoVMlbEQg4zNUAp8khQ15QmikZ6zEEFDA5IEKClhuQ1Q2nZ1RWONvSlGV0iaUDAicOSfiI/kXzg9 ch-j-ssh-example-03

私钥

未加密的私钥。仅为测试而公开,任何人都可以使用。

下载 → 1 831 字节

显示
-----BEGIN OPENSSH PRIVATE KEY-----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-----END OPENSSH PRIVATE KEY-----

test_1MB.bin 的签名

在 CH-J Tools 中使用此密钥生成的 test_1MB.bin 分离式 SSH 签名(SSHSIG,命名空间为 "file")。请将其保存为 test_1MB.bin.sig,与测试文件放在同一目录中。

下载 → 866 字节

-----BEGIN SSH SIGNATURE-----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-----END SSH SIGNATURE-----

吊销

SSH 密钥没有吊销证书。要撤销密钥,请将其从 authorized_keys 中移除,或将其列入 OpenSSH 密钥吊销列表(KRL,使用 ssh-keygen -k 创建),让服务器通过 RevokedKeys 配置读取该列表。

验证签名

将公钥和签名保存到 test_1MB.bin 所在的目录中,创建 allowed_signers 文件,然后运行 ssh-keygen:

echo "example@ch-j $(cat id_rsa.pub)" > allowed_signers
ssh-keygen -Y verify -f allowed_signers -I example@ch-j -n file -s test_1MB.bin.sig < test_1MB.bin