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Suppose that a set of entities each have public/private key pairs, (P 1, S 1), (P 2, S 2), ..., (P n, S n). Party i can compute a ring signature σ on a message m, on input (m, S i, P 1, ..., P n). Anyone can check the validity of a ring signature given σ, m, and the public keys involved, P 1, ..., P n. If a ring signature is properly computed ...
[1] [2] Methods other than fingerprint scanning or PIN-numbers can be used at a payment terminal. Tokenization , when applied to data security, is the process of substituting a sensitive data element with a non-sensitive equivalent, referred to as a token , that has no intrinsic or exploitable meaning or value.
A name–value pair, also called an attribute–value pair, key–value pair, or field–value pair, is a fundamental data representation in computing systems and applications. Designers often desire an open-ended data structure that allows for future extension without modifying existing code or data.
Each key pair consists of a public key and a corresponding private key. [ 1 ] [ 2 ] Key pairs are generated with cryptographic algorithms based on mathematical problems termed one-way functions . Security of public-key cryptography depends on keeping the private key secret; the public key can be openly distributed without compromising security ...
Byte pair encoding [1] [2] (also known as digram coding) [3] is an algorithm, first described in 1994 by Philip Gage, for encoding strings of text into tabular form for use in downstream modeling. [4]
The global public key is the single node at the very top of the Merkle tree. Its value is an output of the selected hash function, so a typical public key size is 32 bytes. The validity of this global public key is related to the validity of a given one-time public key using a sequence of tree nodes. This sequence is called the authentication path.
Key transport keys are usually used to establish keys (e.g., key wrapping keys, data encryption keys or MAC keys) and, optionally, other keying material (e.g., initialization vectors). Public key transport key Public key transport keys are the public keys of asymmetric key pairs that are used to encrypt keys using a public key algorithm.
To create the private key Alice uses the random number generator to produce 256 pairs of random numbers (2×256 numbers in total), each number being 256 bits in size, that is, a total of 2×256×256 bits = 128 Kibit in total. This is her private key and she will store it away in a secure place for later use.