The hash function
of implementing the OTP Transformation should be collision-resistant, meaning that it is extremely difficult to find two distinct inputs that could produce the same output.
We just remove this checking requirement by making hash function
to produce hash values greater than 0 and setting 0th index of mapping array to 0 (see Figure 5 and 6).
Furthermore, we investigated the influence of the hash function
algorithm for the value of entropy.
1 Principle of the classical HASH function
in the authentication process
Initially the Hash Message Authentication Code (HMAC) of the original image is computed using the iterative cryptographic hash function
MD5 (Message-Digest algorithm 5).
MD5 is also a cryptographic hash function
that had been widely used before the development of SHA-1.
The signature is created inside the camera according to the 1024-bit RSA signature procedure and according to the 12-bit SHA hash function
, so it complies with all technical legal requirements for advanced and qualified electronic signatures.
We postulate that the hash function
has been designed in such a way that the hashed values closely resemble a uniform model of randomness, namely, bits of hashed values are assumed to be independent and to have each probability 1/2 of occurring-- practical methods are known , which vindicate this assumption, based on cyclic redundancy codes (CRC), modular arithmetics, or a simplified cryptographic use of boolean algebra (e.
If an entire hard drive has to be copied, Luther said lawyers will have to use software, as noted by Milbrath, that attaches a hash mark or hash function
to the data.
To distribute the buckets among the server's processors, a hash function
that considers the term (because some terms have higher probability of appearing than others), the identifiers number of the bucket, (so not all the buckets go to the same processor) and the number of processors is be used.
Hash table size and hash function
can greatly affect the efficiency of a hash-table based index.
SHA-1 Hash Function
-- Additional system security is provided by SHA-1 hash functions
that provide the ability to create, store and compare a "safe" system software profile.