The privilege of access to the computer is granted only to persons whose department knows they are entitled to such access and is not transferable. Users should not allow other users to access their accounts by disclosing usernames and passwords, even for totally innocent purposes. Another well-known approach is MSR-type algorithms, which have been widely used by computer science to control the theory.    I agree to comply with CS guidelines for the responsible use of my computer account. The computer facilities of the Department of Computer Science are made available free of charge to students and teachers to support the department`s education and research mission. All computer use must comply with university guidelines and codes of conduct and must not violate international, federal, state or local laws. Some cryptocurrencies, such as Ripple, use a node validation system to validate the Ledger. This system used by Ripple, called Ripple Protocol Consensus Algorithm (RPCA), works in rounds: Step 1: Each server establishes a list of valid transactions; Step 2: Each server brings together all candidates from its single nodes list (UNL) and votes on their accuracy; Step 3: Transactions above the minimum threshold will move on to the next round; Step 4: The last round requires an 80% agreement, ministry staff regularly monitor the use of the department`s IT resources and will issue alerts or take other appropriate measures if they find abuse. The privilege of access to the computer may be limited or denied to any user who violates the guidelines described in the Cs Account Information and Policy Statement or department mission. To solve the problem of consensus in a shared storage system, simultaneous objects must be introduced. A simultaneous or shared object is a data structure that helps simultaneous processes reach an agreement. The problem of consensus requires agreement between a number of processes (or agents) for a data value.
Some of the processes (agents) may fail or not be reliable in another way, so consensual protocols must be tolerant or resilient. Processes must, in one way or another, set out their candidate values, communicate with each other and agree on a single consensual value. Three problems with an agreement of interest are as follows. In an asynchronous model, some forms of error can be dealt with by a synchronous consensus protocol. For example, the loss of a communication connection can be modeled as a process that has suffered a Byzantine error. Different computational models can define a “consensus problem.” Some models may be interested in fully connected diagrams, while others may process rings and trees. In some models, message authentication is allowed, while in others, processes are completely anonymous.