SSH, or Secure Shell, provides secure remote access to UNIX-like servers by ensuring confidentiality, integrity, and availability through encryption, authentication, and protection against various attacks. It uses asymmetric and symmetric encryption, Diffie-Hellman key exchange, and Message Authentication Codes (MAC) for robust security. The post also explores ways to prevent tampering and downgrade attacks while discussing methods for secure user authentication.
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What is “secure” anyways? ⌗Confidentiality through encryption ⌗Integrity through MAC ⌗User authentication through passwords and public keys ⌗Availability through hope ⌗everything is fine ⌗Further reading ⌗Sort: