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What Is Dynamic Key Generation

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Generation Z (also known as Post-Millennials, the iGeneration, Founders, Plurals, or the Homeland Generation) is the demographic cohort following the Millennials. The difference between the two is important to know in order to prepare your business, shift marketing, adjust leadership, and adapt recruiting efforts to stay relevant for the future. A session key is a single-use symmetric key used for encrypting all messages in one communication session. A closely related term is content encryption key ( CEK ), traffic encryption key ( TEK ), or multicast key which refers to any key used to encrypt messages, as opposed to other uses. Var value = jsObj'key' + i; The operator there is doing precisely the same thing in both instances. The fact that in one case the object involved happens to be an array is unimportant, in other words.

What Is Dynamic Key Generation 2

Publication: Nordic Journal of ComputingDecember 1999
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In this paper, we propose a new dynamic cryptographic key generation scheme for access control in a hierarchy. Our method can achieve the following three goals. First, the storage space needed to store public information is smaller than that required in previous work. Second, when a security class is added to the hierarchy, we assign a secret key and a public derivation key to the security class without affecting the keys of the other security classes in the hierarchy. Third, when a security class is deleted from the hierarchy, we simply erase the keys of that security class in the hierarchy and change the derivation key of its immediate ancestor.

  1. {1} AKL, S.G. AND TAYLOR, P.D. 1983 Cryptographic solution to a problem of access control in a hierarchy. ACM Transactions on Computer Systems 1, 3 (July), 239-248. Google ScholarDigital Library
  2. {2} CHANG, C.C., LIN, C.H., AND LEE, R.C.T. 1992 Hierarchy representations based on arithmetic coding for dynamic information protection systems. Information Sciences 64, 35-48. Google ScholarDigital Library
  3. {3} CHANG, C.C. HWANG, R.J., AND Wu, T.C. 1992. Cryptographic key assignment scheme for access control in a hierarchy. Information Systems 17, 3, 243-247. Google ScholarDigital Library
  4. {4} DENNING, D.E.R. 1982. Cryptography and Data Security. Addison-Wesley, Massachusetts. Google Scholar
  5. {5} HARN, L. AND LIN, H.Y. 1990. A cryptographic key generation scheme for multilevel data security. Computers & Security 9, 6 (Oct.), 539-546. Google ScholarDigital Library
  6. {6} HWANG, M.S., CHANG, C.C., AND YANG, W.P. 1993. Modified Chang-Hwang-Wu access control scheme. IEE Electronics Letters 29, 24 (Nov.), 2095-2096.Google ScholarCross Ref
  7. {7} HWANG, M.S. AND YANG, W.P. 1995. A two-phase encryption scheme for enhancing database security. Journal of Systems and Software 31, 12 (Dec.), 257-265. Google ScholarDigital Library
  8. {8} HWANG, M.S. AND YANG, W.P. 1995. Multilevel database security with subkeys. Submitted for publication.Google Scholar
  9. {9} HWANG, M.S. 1997. A cryptolographic key assignment scheme in a hierarchy for access control. Mathematical and Computer Modelling 26, 2, 27-31. Google ScholarDigital Library
  10. {10} HWANG, M.S. 1999. An improvement of a dynamic cryptographic key assignment scheme in a tree hierarchy. Computers & Mathematics with Applications 37, 3, 19-22.Google ScholarCross Ref
  11. {11} HWANG, M.S. 1999. An improvement of novel cryptographic key assignment scheme for dynamic access control in a hierarchy. IEICE Transactions on Fundamentals E82-A, 3 (Mar.), 548-550.Google Scholar
  12. {12} HWANG, M.S. 1999. Extension of CHW cryptographic key assignment scheme in a hierarchy. IEE Proceedings - Computers and Digital Techniques 146, 4 (July), 219.Google ScholarCross Ref
  13. {13} KNUTH, D.E. 1980. The Art of Computer Programming, Vol. 2 (Seminumerical Algorithms), 2nd edition. Addison-Wesley, Massachusetts. Google Scholar
  14. {14} LIAW, H.T., WANG, S.J., AND LEI, C.L. 1993. A dynamic cryptographic key assignment scheme in a tree structure. Computers and Math. with Applic. 25, 6, 109-114.Google ScholarCross Ref
  15. {15} MACKINNON, S.J., TAYLOR, P.D., MEIJER, H., AND AKL, S.G. 1985. An optimal algorithm for assigning cryptographic keys to control access in a hierarchy. IEEE Transactions on Computers 34, 9 (Sep.), 797-802. Google Scholar
  16. {16} SANDHU, R.S. 1988. Cryptographic implementation of a tree hierarchy for access control. Information Processing Letters 27, 95-98. Google ScholarDigital Library
  1. A new dynamic key generation scheme for access control in a hierarchy
What Is Dynamic Key Generation
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What Is Dynamic Programming

Digital Edition

View this article in digital edition.

View Digital EditionThis class provides the functionality of a secret (symmetric) key generator.

Key generators are constructed using one of the getInstance class methods of this class.

KeyGenerator objects are reusable, i.e., after a key has been generated, the same KeyGenerator object can be re-used to generate further keys.

There are two ways to generate a key: in an algorithm-independent manner, and in an algorithm-specific manner. The only difference between the two is the initialization of the object:

  • Algorithm-Independent Initialization

    All key generators share the concepts of a keysize and a source of randomness. There is an init Ssh key generate mac os. method in this KeyGenerator class that takes these two universally shared types of arguments. There is also one that takes just a keysize argument, and uses the SecureRandom implementation of the highest-priority installed provider as the source of randomness (or a system-provided source of randomness if none of the installed providers supply a SecureRandom implementation), and one that takes just a source of randomness.

    Since no other parameters are specified when you call the above algorithm-independent init methods, it is up to the provider what to do about the algorithm-specific parameters (if any) to be associated with each of the keys.

  • Algorithm-Specific Initialization

    For situations where a set of algorithm-specific parameters already exists, there are two init methods that have an AlgorithmParameterSpec argument. One also has a SecureRandom argument, while the other uses the SecureRandom implementation of the highest-priority installed provider as the source of randomness (or a system-provided source of randomness if none of the installed providers supply a SecureRandom implementation).

In case the client does not explicitly initialize the KeyGenerator (via a call to an init method), each provider must supply (and document) a default initialization.

Every implementation of the Java platform is required to support the following standard KeyGenerator algorithms with the keysizes in parentheses:

  • AES (128)
  • DES (56)
  • DESede (168)
  • HmacSHA1
  • HmacSHA256

What Is Dynamic Key Generation Computer

These algorithms are described in the KeyGenerator section of the Java Cryptography Architecture Standard Algorithm Name Documentation. Consult the release documentation for your implementation to see if any other algorithms are supported.