monero-site/resources/moneropedia/ringCT.md
2017-07-04 00:00:32 -06:00

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---
layout: moneropedia
entry: "Ring CT"
terms: ["ringCT", "ring-CT"]
summary: "a way to hide the amount sent in a Monero transaction"
---
### The Basics
RingCT, short for Ring Confidential Transactions, is how transaction amounts are hidden in Monero.
Ring CT was implemented in block #1220516 and is currently used in over 95% of Monero transactions. After September 2017 this feature will be mandatory for all transactions on the network.
RingCT introduces an improved version of @ring-signatures called A Multi-layered Linkable Spontaneous Anonymous Group signature, which allows for hidden amounts, origins and destinations of transactions with reasonable efficiency and verifiable, trustless coin generation.
For more information, please read the creator Shen Noether's paper [here](https://eprint.iacr.org/2015/1098).
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