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  2. Secure Shell - Wikipedia

    en.wikipedia.org/wiki/Secure_Shell

    The Secure Shell Protocol (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. Its most notable applications are remote login and command-line execution.

  3. Secure Remote Password protocol - Wikipedia

    en.wikipedia.org/wiki/Secure_Remote_Password...

    The Secure Remote Password protocol (SRP) is an augmented password-authenticated key exchange (PAKE) protocol, specifically designed to work around existing patents.. Like all PAKE protocols, an eavesdropper or man in the middle cannot obtain enough information to be able to brute-force guess a password or apply a dictionary attack without further interactions with the parties for each guess.

  4. Password strength - Wikipedia

    en.wikipedia.org/wiki/Password_strength

    Most password managers can automatically create strong passwords using a cryptographically secure random password generator, as well as calculating the entropy of the generated password. A good password manager will provide resistance against attacks such as key logging, clipboard logging and various other memory spying techniques. See also

  5. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    A private key can be stored on a user's computer, and protected by a local password, but this has two disadvantages: the user can only sign documents on that particular computer; the security of the private key depends entirely on the security of the computer; A more secure alternative is to store the private key on a smart card.

  6. RSA SecurID - Wikipedia

    en.wikipedia.org/wiki/RSA_SecurID

    Though increasingly rare, some systems using RSA SecurID disregard PIN implementation altogether, and rely on password/RSA SecurID code combinations. The server, which also has a real-time clock and a database of valid cards with the associated seed records, authenticates a user by computing what number the token is supposed to be showing at ...

  7. One-time pad - Wikipedia

    en.wikipedia.org/wiki/One-time_pad

    One-time pads are practical in situations where two parties in a secure environment must be able to depart from one another and communicate from two separate secure environments with perfect secrecy. The one-time-pad can be used in superencryption. The algorithm most commonly associated with quantum key distribution is the one-time pad.

  8. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    TLS, sometimes called by its older name Secure Sockets Layer (SSL), is notable for being a part of HTTPS, a protocol for securely browsing the web. In a typical public-key infrastructure (PKI) scheme, the certificate issuer is a certificate authority (CA), usually a company that charges customers to issue certificates for them.

  9. SHA-1 - Wikipedia

    en.wikipedia.org/wiki/SHA-1

    In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographically broken but still widely used hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as 40 hexadecimal digits.