dido:public:ra:xapend:xapend.k_consensus:02_mechanism:poauth
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dido:public:ra:xapend:xapend.k_consensus:02_mechanism:poauth [2021/07/18 20:13] nick |
dido:public:ra:xapend:xapend.k_consensus:02_mechanism:poauth [2021/08/13 13:56] (current) murphy |
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| - | ====== Proof of Authority (PoA) ====== | + | ====== Proof of Authority (PoAuth) ====== |
| [[dido:public:ra:xapend:xapend.k_consensus:02_mechanism:start | Return to Consensus Mechanism ]] | [[dido:public:ra:xapend:xapend.k_consensus:02_mechanism:start | Return to Consensus Mechanism ]] | ||
| + | Sandre provides the following definition(( | ||
| + | Nicolò De Sandre, | ||
| + | Leiden Institute of Advanced Computer Science (LIACS) | ||
| + | Leiden University, | ||
| + | __A Multicriteria Evaluation of Blockchain Technologies in the Healthcare System__, | ||
| + | page 35, | ||
| + | 2 November 2018, | ||
| + | Accessed 18 July 2021, | ||
| + | [[https://theses.liacs.nl/pdf/2018-2019-DeSandreNicolo.pdf]] | ||
| + | )): | ||
| - | **Proof of Authority (PoA)** is an alternative consensus algorithm, a modified Proof of | + | |
| - | Stake in which a validator’s identity replaces the role of the stake and, the nodes | + | **[[dido:public:ra:xapend:xapend.a_glossary:p:proof_of_authority_poa|Proof of Authority (PoAuth)]]** or **(PoA)**is an alternative consensus algorithm, a modified [[dido:public:ra:xapend:xapend.a_glossary:p:proof_of_stake_pos|Proof of Stake]] in which a validator’s identity replaces the role of the stake and, the nodes |
| validating blocks are the ones explicitly allowed to do so. This peculiarity of Proof | validating blocks are the ones explicitly allowed to do so. This peculiarity of Proof | ||
| of Authority diversifies it from PoS since it allows to take into account the different | of Authority diversifies it from PoS since it allows to take into account the different | ||
| interests that two nodes, even with the same amount of stake, may have in the | interests that two nodes, even with the same amount of stake, may have in the | ||
| network. A set of selected authorities has to create new blocks and secure the | network. A set of selected authorities has to create new blocks and secure the | ||
| - | blockchain. The majority of the authorities have to agree on the current status of | + | [[dido:public:ra:xapend:xapend.a_glossary:b:blockchain|blockchain]]. The majority of the authorities have to agree on the current status of |
| the transactions, and to sign off the chain; only then, it can be added to the | the transactions, and to sign off the chain; only then, it can be added to the | ||
| blockchain and become permanent. The identity of a validator denotes the | blockchain and become permanent. The identity of a validator denotes the | ||
| - | “congruity between a validator’s identification on a platform with his official | + | “congruity between a validator’s [[dido:public:ra:xapend:xapend.a_glossary:i:identification|identification]] on a [[dido:public:ra:xapend:xapend.a_glossary:p:platform|platform]] with his official |
| documents, i.e. certainty that a validator is exactly whom that person represents to | documents, i.e. certainty that a validator is exactly whom that person represents to | ||
| be.” A robust process at assessing whether the validators are whom they claim to be 24 | be.” A robust process at assessing whether the validators are whom they claim to be 24 | ||
| Line 18: | Line 28: | ||
| this incentivizes them to retain the position they have earned since it is unpleasant | this incentivizes them to retain the position they have earned since it is unpleasant | ||
| to lose. “Individuals whose identity, and reputation is at stake for the securing of a | to lose. “Individuals whose identity, and reputation is at stake for the securing of a | ||
| - | network are incentivized to preserve the network.”25 | + | network are incentivized to preserve the network.” |
| To recap, with PoA consensus is essential to: first, establish that validators’ | To recap, with PoA consensus is essential to: first, establish that validators’ | ||
dido/public/ra/xapend/xapend.k_consensus/02_mechanism/poauth.1626653614.txt.gz · Last modified: 2021/07/18 20:13 by nick
