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  2. bcrypt - Wikipedia

    en.wikipedia.org/wiki/Bcrypt

    For example, bcrypt cannot be used to derive a 512-bit key from a password. At the same time, algorithms like pbkdf2, scrypt, and argon2 are password-based key derivation functions - where the output is then used for the purpose of password hashing rather than just key derivation. Password hashing generally needs to complete < 1000 ms.

  3. Digest access authentication - Wikipedia

    en.wikipedia.org/wiki/Digest_access_authentication

    The table of HA1 values must therefore be protected as securely as a file containing plaintext passwords. [12] Digest access authentication prevents the use of a strong password hash (such as bcrypt) when storing passwords (since either the password, or the digested username, realm and password must be recoverable)

  4. 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. [1]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.

  5. Salt (cryptography) - Wikipedia

    en.wikipedia.org/wiki/Salt_(cryptography)

    The salt and hash are then stored in the database. To later test if a password a user enters is correct, the same process can be performed on it (appending that user's salt to the password and calculating the resultant hash): if the result does not match the stored hash, it could not have been the correct password that was entered.

  6. Basic access authentication - Wikipedia

    en.wikipedia.org/wiki/Basic_access_authentication

    In the context of an HTTP transaction, basic access authentication is a method for an HTTP user agent (e.g. a web browser) to provide a user name and password when making a request. In basic HTTP authentication, a request contains a header field in the form of Authorization: Basic <credentials> , where <credentials> is the Base64 encoding of ID ...

  7. PBKDF2 - Wikipedia

    en.wikipedia.org/wiki/PBKDF2

    The bcrypt password hashing function requires a larger amount of RAM (but still not tunable separately, i.e. fixed for a given amount of CPU time) and is significantly stronger against such attacks, [13] while the more modern scrypt key derivation function can use arbitrarily large amounts of memory and is therefore more resistant to ASIC and ...

  8. PKCS 8 - Wikipedia

    en.wikipedia.org/wiki/PKCS_8

    The PKCS #8 private key may be encrypted with a passphrase using one of the PKCS #5 standards defined in RFC 2898, [2] which supports multiple encryption schemes. A new version 2 was proposed by S. Turner in 2010 as RFC 5958 [ 3 ] and might obsolete RFC 5208 someday in the future.

  9. Challenge–response authentication - Wikipedia

    en.wikipedia.org/wiki/Challenge–response...

    A hash function can also be applied to a password and a random challenge value to create a response value. Another variation uses a probabilistic model to provide randomized challenges conditioned on model input. [2] Such encrypted or hashed exchanges do not directly reveal the password to an eavesdropper.