mirror of https://github.com/nucypher/nucypher.git
85 lines
3.0 KiB
ReStructuredText
85 lines
3.0 KiB
ReStructuredText
Glossary
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========
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.. _Umbral: https://github.com/nucypher/umbral-doc/blob/master/umbral-doc.pdf
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.. glossary::
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Alice
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*"The Data Owner"* :term:`Character` - retains full control over the data encrypted for her and determines whom to share the data with.
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Bob
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*"The Data Recipient"* :term:`Character` - the data recipient that :term:`Alice` intends to share data with.
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Capsule
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Encrypted symmetric key (:term:`KEM`) that is eventually re-encrypted.
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cFrag
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A fragment of ciphertext that is a partial re-encryption produced by a :term:`kFrag` operation on a :term:`Capsule`.
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Character
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A common term for any entity fulfilling a particular role in our cryptographic narrative.
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DEM
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Data encapsulation mechanism - data encrypted with a symmetric key.
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Enrico
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*"The Encryptor"* :term:`Character` - a data source that encrypts data on behalf of :term:`Alice` and produces a :term:`MessageKit`.
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Felix
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*"The Faucet"* :term:`Character` - provides *testnet* NU tokens for nodes on the test NuCypher Network.
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KEM
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Key encapsulation mechanism - a symmetric key encrypted with an asymmetric key
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kFrag
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A fragment of a :term:`Re-encryption Key`.
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Label
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A title for a classification/categorization of data according to how it is intended to be shared.
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MessageKit
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The ciphertext (data encrypted with a symmetric key) and the :term:`Capsule` (encrypted symmetric key) that are stored together.
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NU
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The NuCypher token used by nodes for staking.
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NuNit
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1 NU = 10\ :sup:`18` NuNits.
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Period
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A timeframe of approximately a day in the NuCypher Network.
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PKE
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Public-key encryption.
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PRE
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Proxy re-encryption.
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Re-encryption Key
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A key that facilitates the transformation of ciphertext from one encryption key to another.
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Stake
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A quantity of tokens and escrow duration in periods.
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Staker
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An account that holds NU tokens and performs staking-related operations on the blockchain.
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Stamp
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The public key for a :term:`Character`'s signing key pair.
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Treasure Map
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The locations of :term:`Ursulas<Ursula>` that have the relevant :term:`kFrags<kFrag>` for a policy. :term:`Bob` will use the treasure map to determine which :term:`Ursulas<Ursula>` to contact to re-encrypt the data :term:`Alice` has shared with him.
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Umbral
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NuCypher's threshold proxy re-encryption scheme - it takes standard :term:`PRE` and increases security and performance. See Umbral_.
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Ursula
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*"The Proxy in PRE"* :term:`Character` - the nodes on the NuCypher Network that stand ready to re-encrypt data in exchange for payment in fees and token rewards; they enforce the access policy created by :term:`Alice`.
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Worker
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An account that is actively doing work in the network as an :term:`Ursula` node. A worker is bonded to, and performs work on behalf of, a :term:`Staker`.
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WorkLock
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NuCypher's permissionless token distribution mechanism.
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