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Monero [XMR]’s Bulletproof protocol audit successfully completed by Kudelski




Monero [XMR]'s Bulletproof protocol audit successfully completed by Kudelski
Source: Unsplash

Monero, an open-source cryptocurrency company released its Bulletproofs security audit. The announcement of the Kudelski Security report was made on their social media handle recently. The foundation stated that there were only minor issues which were detected during the audit of the new protocol.

Monero’s Twitter announcement stated:

“The first audit (by Kudelski Security) of Monero compatible Bulletproof has, bearing a few minor issues, been successfully completed!”

Monero [XMR] is a well-known privacy coin in the cryptocurrency community. The amount involved in every transaction remains confidential. Monero uses commitments with algebraic properties to ensure that the inputs and outputs are in balance and can be verified by anyone.

In addition, Monero implemented the Range Proof protocol to avoid overflow while ensuring that the values are positive and anyone can verify the transaction. Nonetheless, the main drawback of Range Proof is that it consumes a huge transaction size on the blockchain.

As a solution to this, Monero introduced the Bulletproof protocol as a replacement to Range Proof which is currently deployed on the blockchain. There are two types of Bulletproofs, single-output and multiple-output. The multiple-out could either be several single-outputs or one multiple-outputs.

With the single-output transaction, the current transaction size of 13.2Kb will be reduced by 80%, which is close to 2.5Kb. Furthermore, the transaction size consumed by the multiple-output transaction proof will be lesser when compared to single-output. This makes the fees lowers and the network faster.

In December 2017, the team had announced that they will be deploying single-output and multiple-output separately. Single-output bulletproof would be deployed first and then multiple-output proof would be deployed.

The team said:

“Bulletproofs represent a huge advancement in Monero transactions. We get massive space savings, better verification times and lower fees. If you’re a fan of the Testnet, keep an eye for bulletproofs.”

At present, Bulletproof is deployed on the Testnet. Kudelski Security, an independent Swiss provider for tailored cyber and media security solutions was hired by the Monero Foundation. The security solutions company was required to perform a security assessment on Bulletproof. At present, the bulletproof protocol is deployed on the Testnet and the audit shows that there weren’t any major problems that would risk someone’s privacy.

The audit shows that there were:

  • 4 minor security
  • 8 observations regarding the general code safety in bulletproof implementation or other components of the Monero code base.

Charles Hoskinson, the Founder of IOHK and Cardano said:

“Really awesome to see this and congratulations Monero. We also use Kudelski. Great Firm”

Niocc, a Reddit user says:

“that 80% fee reduction keeps getting repeated and now has a life of it’s own. tx size is being reduced by 77.5% but size is not the only coast for a tx. Another cost is verification time and although bulletproofs provide a savings here as well it is not as much of a savings as size. The fee formula is being adjusted to reflect all the changes that bulletproofs bring. This and other parameters are currently being worked on so we do not actually have a number now but will before it is implemented. So yes there will be a significant reduction of fees but please do not get hung up on 80%”

Winniedapoo69, a Redditor says:

“Monero provides a real use case already – it works and provides great privacy. While many other cryptos are stuck firmly in the speculative phase.”

XMRJimmy, another Redditor says:

“This is what happens when a project has a team of highly skilled, competent developers. No promises or talking; the hard-work does all the talking. It’s not a race, it’s a marathon. See you at the finish line.”

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Priya is a full-time member of the reporting team at AMBCrypto. She is a finance major with one year of writing experience. She has not held any value in Bitcoin or other currencies.

Bitcoin Cash

Bitcoin Cash [BCH] rolls out iOS version of Bitcoin Cash Register

Rishi Raj



Source: Pixabay

Bitcoin Cash [BCH] recently made headlines when the CEO of, Roger Ver got involved in a bet of $10,000 with Tone Vays, a popular Bitcoin maximalist which the former lost. After launching a free point-of-scale solution, Bitcoin Cash Register for Android operating systems, and its developers have rolled out an iOS version of the same.

Bitcoin Cash register allows anyone with an Android or iOS device to accept BCH payments. This came as a part of the company’s agenda to promote the adoption of crypto in the mainstream. With the installment Bitcoin Cash Register, it would be easier for retailers to accept BCH as payment from customers.

As reported by, Bitcoin Cash Register claims to be easy to use without any prior account registration and the transactions are carried out in a non-custodial manner. This was confirmed by via a tweet:

The bet between Roger Ver and Tone Vays regarding the low transaction fee had left the social media divided, with proponents on both sides arguing about the authenticity of the bet and factors taken into consideration while betting.

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