2018-02-04 15:56:31 +00:00
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---
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2021-10-05 08:53:48 +00:00
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summary: 'a way to hide the amount sent in a Monero transaction'
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2018-02-04 15:56:31 +00:00
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terms: ["ringCT", "ring-CT"]
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---
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2020-08-16 17:11:02 +00:00
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{% include disclaimer.html translated="no" translationOutdated="no" %}
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2021-10-05 08:53:48 +00:00
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2018-02-04 15:56:31 +00:00
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### The Basics
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2021-10-05 08:53:48 +00:00
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RingCT, short for Ring Confidential Transactions, is how transaction amounts
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are hidden in Monero.
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Ring CT was implemented in block #1220516 in January 2017. After September
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2017, this feature became mandatory for all transactions on the network.
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2018-02-04 15:56:31 +00:00
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2021-10-05 08:53:48 +00:00
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RingCT introduces an improved version of @ring-signatures called "A
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Multi-layered Linkable Spontaneous Anonymous Group signature", which allows
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for hidden amounts, origins and destinations of transactions with reasonable
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efficiency and verifiable, trustless coin generation.
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2018-02-04 15:56:31 +00:00
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2021-10-05 08:53:48 +00:00
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For more information, please read the creator Shen Noether's paper
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[here](https://eprint.iacr.org/2015/1098).
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