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  2. EAX mode - Wikipedia

    en.wikipedia.org/wiki/EAX_mode

    EAX mode (encrypt-then-authenticate-then-translate [1]) is a mode of operation for cryptographic block ciphers. It is an Authenticated Encryption with Associated Data algorithm designed to simultaneously provide both authentication and privacy of the message (authenticated encryption) with a two-pass scheme, one pass for achieving privacy and one for authenticity for each block.

  3. Authenticated encryption - Wikipedia

    en.wikipedia.org/wiki/Authenticated_encryption

    Authenticated Encryption (AE) is an encryption scheme which simultaneously assures the data confidentiality (also known as privacy: the encrypted message is impossible to understand without the knowledge of a secret key [1]) and authenticity (in other words, it is unforgeable: [2] the encrypted message includes an authentication tag that the sender can calculate only while possessing the ...

  4. CCM mode - Wikipedia

    en.wikipedia.org/wiki/CCM_mode

    As the name suggests, CCM mode combines counter (CTR) mode for confidentiality with cipher block chaining message authentication code (CBC-MAC) for authentication. These two primitives are applied in an "authenticate-then-encrypt" manner: CBC-MAC is first computed on the message to obtain a message authentication code (MAC), then the message and the MAC are encrypted using counter mode.

  5. Mutual authentication - Wikipedia

    en.wikipedia.org/wiki/Mutual_authentication

    The message is then decrypted with Bob's secret key, giving Alice's ID. Bob checks if the message matches a valid user. If not, the session is aborted. Bob sends Alice a message back to show that Bob is a valid user. Alice verifies the message: Alice checks the format and timestamp. If either is incorrect or invalid, the session is aborted.

  6. Cipher suite - Wikipedia

    en.wikipedia.org/wiki/Cipher_suite

    A cipher suite is as secure as the algorithms that it contains. If the version of encryption or authentication algorithm in a cipher suite have known vulnerabilities the cipher suite and TLS connection may then be vulnerable. Therefore, a common attack against TLS and cipher suites is known as a downgrade attack. A downgrade in TLS occurs when ...

  7. Password-authenticated key agreement - Wikipedia

    en.wikipedia.org/wiki/Password-authenticated_key...

    Although several of the first methods were flawed, the surviving and enhanced forms of EKE effectively amplify a shared password into a shared key, which can then be used for encryption and/or message authentication. The first provably-secure PAKE protocols were given in work by M. Bellare, D. Pointcheval, and P. Rogaway (Eurocrypt 2000) and V ...

  8. Secure your AOL account

    help.aol.com/articles/secure-your-aol-account

    Check your login activity - Check the recent activity on your account for unusual logins. • Delete security questions - It's more secure to add an email address or phone number to secure your account; remove your questions if you haven't already .

  9. Poly1305 - Wikipedia

    en.wikipedia.org/wiki/Poly1305

    Poly1305 is a universal hash family designed by Daniel J. Bernstein in 2002 for use in cryptography. [1] [2]As with any universal hash family, Poly1305 can be used as a one-time message authentication code to authenticate a single message using a secret key shared between sender and recipient, [3] similar to the way that a one-time pad can be used to conceal the content of a single message ...