Unverified50% confidenceFactExact time
SSH密钥认证基于RSA（依赖大整数分解难题）或Ed25519（基于椭圆曲线离散对数难题）算法，私钥永远不离开本地设备
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Home Self-Hosting Server Setup Guide: Building a Private Cloud Ecosystem from Scratch
redditr/selfhosted7/11/2026
Related Claims
UnverifiedSSH密钥认证过程中私钥永远不离开本地设备，即便服务器被入侵，攻击者获得的公钥也无法反推私钥77% similarUnverifiedSSH key authentication is based on asymmetric encryption principles, where the private key is kept locally and the public key is uploaded to the server, with no password transmission throughout the process, making it more secure than HTTPS username and password authentication75% similarUnverifiedHS256使用对称密钥适合单体服务，RS256使用非对称密钥对适合微服务场景72% similarUnverifiedRSA encryption relies on the difficulty of large integer factorization, elliptic curve cryptography relies on the discrete logarithm problem, and cryptographic security is built on the assumption that certain problems are computationally hard to solve.72% similarUnverifiedHardware security keys (such as YubiKey) implement the FIDO2/PIV protocol to ensure that private keys never leave the hardware device.70% similar
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