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Learn how to generate strong and secure passwords using software, hardware, or manual methods. Compare different sources of randomness, password types, and entropy calculations.
Learn how password strength is measured by entropy, which is the minimum number of bits needed to hold the information in a password. Find out how password guessing and cracking work, and how to improve password security with salts and key stretching.
Learn how to generate and use an app password to access your AOL Mail account on third-party email apps that do not use the AOL Mail sign-in page. App passwords are randomly generated codes that remain active even if you change your main account password.
Learn how to access, delete, or create a new AOL username for services like AOL Mail or premium services. Find out why you can't change or modify your username and how to view all usernames associated with your account.
Salt is random data added to a password or passphrase before hashing it, to prevent attacks using precomputed tables or multiple occurrences of the same password. Learn how salt works, its benefits, common mistakes and examples.
Learn how basic access authentication works in HTTP transactions, where a user agent provides a user name and password in a header field. Find out the features, security, and protocol of this method, and its alternatives and references.
Learn how digest access authentication works, its advantages and disadvantages, and its history and standards. Digest access authentication is a method of verifying user identity with a web server using MD5 or SHA hashing and nonce values.
RSA SecurID is a product by RSA that generates one-time passwords for network access. It uses a token with a built-in clock and a seed key, and requires a PIN or a ...