The lock icon in browsers relies on a chain of digital trust where certificate authorities vouch that a website's public key belongs to the intended site; browsers verify signatures, dates, names, and revocation signals before trusting the encrypted session, ensuring that while math protects the connection, identity verification comes from the certificate chain to prevent users from unknowingly connecting to the wrong server.
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The Trust Chain Behind the Lock Icon本站添加:
Hidden system. The lock icon in a browser depends on a chain of digital trust. Public key infrastructure lets certificate authorities vouch that a website's public key belongs to the site you meant to reach. Your browser checks signatures, dates, names, and revocation signals before trusting the encrypted session. The math protects the connection, but identity comes from the certificate chain. Without that system, encryption could still hide a conversation with the wrong server.
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