Executive Summary This report presents the results of our engagement with Flexa to review Amp Token and Flexa Collateral Manager. Flexa is a payment network, using smart contract and Amp collateral to facilitate off-chain payments. The review was conducted over the course of two weeks, from June 9, 2020 to June 19, 2020 by Shayan Eskandari and Valentin Wüstholz. A total of 15 person-days were spent. The review of the initial report fixes were performed from August 10, 2020 to August 14, 2020 by Shayan Eskandari.
Low | Medium | High | Critical | Total | |
---|---|---|---|---|---|
Not fixed | 2 | 1 | - | - | 3 |
Fixed | 4 | 6 | 2 | - | 12 |
Total | 6 | 7 | 2 | 0 | 15 |
# | File Name |
---|---|
1 | amp-contracts/partitions/PartitionsBase.sol |
2 | amp-contracts/erc1820/ERC1820Client.sol |
3 | flexa-collateral-manager/contracts/amp/IAmpTokensRecipient.sol |
4 | flexa-collateral-manager/contracts/amp/IAmpTokensSender.sol |
5 | flexa-collateral-manager/contracts/erc1820/ERC1820Client.sol |
6 | flexa-collateral-manager/contracts/FlexaCollateralManager.sol |
7 | amp-contracts/erc1820/ERC1820Implementer.sol |
8 | amp-contracts/Amp.sol |
9 | amp-contracts/codes/ErrorCodes.sol |
10 | flexa-collateral-manager/contracts/amp/IAmp.sol |