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  2. Message authentication code - Wikipedia

    en.wikipedia.org/wiki/Message_authentication_code

    The simplest such pairwise independent hash function is defined by the random key, key = (a, b), and the MAC tag for a message m is computed as tag = (am + b) mod p, where p is prime. More generally, k -independent hashing functions provide a secure message authentication code as long as the key is used less than k times for k -ways independent ...

  3. SHSH blob - Wikipedia

    en.wikipedia.org/wiki/SHSH_blob

    SHSH blobs are created by a hashing formula that has multiple keys, including the device type, the iOS version being signed, and the device's ECID. [5] [non-primary source needed] When Apple wishes to restrict users' ability to restore their devices to a particular iOS version, Apple can refuse to generate this hash during the restore attempt, and the restore will not be successful (or at ...

  4. Tokenization (data security) - Wikipedia

    en.wikipedia.org/wiki/Tokenization_(data_security)

    Token Generation is the process of producing a token using any means, such as mathematically reversible cryptographic functions based on strong encryption algorithms and key management mechanisms, one-way nonreversible cryptographic functions (e.g., a hash function with strong, secret salt), or assignment via a randomly generated number.

  5. iPhone hardware - Wikipedia

    en.wikipedia.org/wiki/IPhone_hardware

    The second-generation iPhone SE's camera hardware is the same as the iPhone 8, but adds Portrait mode, Portrait lighting, Smart HDR, extended dynamic range for video up to 30 fps, stereo recording and cinematic video stabilization. The iPhone 12 and 12 Pro series brought Night Mode to all camera lenses, including the TrueDepth camera. It also ...

  6. 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.

  7. Hash key - Wikipedia

    en.wikipedia.org/wiki/Hash_key

    Hash key may refer to: Number sign , also known as the number, pound or hash key, a key on a telephone keypad For its use in data structure, database and cryptographic applications, see hash function or unique key

  8. Mobile phone accessories - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_accessories

    Mobile phone chargers have gone through a diverse evolution that has included cradles, plug-in cords and obscure connectors. However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C.

  9. HMAC - Wikipedia

    en.wikipedia.org/wiki/HMAC

    HMAC-SHA1 generation. In cryptography, an HMAC (sometimes expanded as either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving a cryptographic hash function and a secret cryptographic key.

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