From 8ce4f9c784556e93bde2c58b670bf6efd5d3b7fd Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Fri, 24 Aug 2018 10:01:24 -0700 Subject: Remove SignatureType.Caller --- .../protocol/Exchange/MixinSignatureValidator.sol | 34 +++++++--------------- .../Exchange/mixins/MSignatureValidator.sol | 11 ++++--- 2 files changed, 15 insertions(+), 30 deletions(-) (limited to 'packages/contracts/src/2.0.0/protocol/Exchange') diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol index 017da742e..401fdd377 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol @@ -48,14 +48,16 @@ contract MixinSignatureValidator is ) external { - require( - isValidSignature( - hash, - signerAddress, - signature - ), - "INVALID_SIGNATURE" - ); + if (signerAddress != msg.sender) { + require( + isValidSignature( + hash, + signerAddress, + signature + ), + "INVALID_SIGNATURE" + ); + } preSigned[hash][signerAddress] = true; } @@ -172,22 +174,6 @@ contract MixinSignatureValidator is isValid = signerAddress == recovered; return isValid; - // Implicitly signed by caller. - // The signer has initiated the call. In the case of non-contract - // accounts it means the transaction itself was signed. - // Example: let's say for a particular operation three signatures - // A, B and C are required. To submit the transaction, A and B can - // give a signature to C, who can then submit the transaction using - // `Caller` for his own signature. Or A and C can sign and B can - // submit using `Caller`. Having `Caller` allows this flexibility. - } else if (signatureType == SignatureType.Caller) { - require( - signature.length == 0, - "LENGTH_0_REQUIRED" - ); - isValid = signerAddress == msg.sender; - return isValid; - // Signature verified by wallet contract. // If used with an order, the maker of the order is the wallet contract. } else if (signatureType == SignatureType.Wallet) { diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol index 75fe9ec46..b00c5e8da 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol @@ -36,12 +36,11 @@ contract MSignatureValidator is Invalid, // 0x01 EIP712, // 0x02 EthSign, // 0x03 - Caller, // 0x04 - Wallet, // 0x05 - Validator, // 0x06 - PreSigned, // 0x07 - Trezor, // 0x08 - NSignatureTypes // 0x09, number of signature types. Always leave at end. + Wallet, // 0x04 + Validator, // 0x05 + PreSigned, // 0x06 + Trezor, // 0x07 + NSignatureTypes // 0x08, number of signature types. Always leave at end. } /// @dev Verifies signature using logic defined by Wallet contract. -- cgit v1.2.3 From 1932aff35c6b07093534cde66dec63c5f919fcf0 Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Fri, 24 Aug 2018 13:11:17 -0700 Subject: Remove Trezor SignatureType --- .../protocol/Exchange/MixinSignatureValidator.sol | 28 ---------------------- .../Exchange/mixins/MSignatureValidator.sol | 3 +-- 2 files changed, 1 insertion(+), 30 deletions(-) (limited to 'packages/contracts/src/2.0.0/protocol/Exchange') diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol index 401fdd377..f30adcdb8 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol @@ -211,34 +211,6 @@ contract MixinSignatureValidator is } else if (signatureType == SignatureType.PreSigned) { isValid = preSigned[hash][signerAddress]; return isValid; - - // Signature from Trezor hardware wallet. - // It differs from web3.eth_sign in the encoding of message length - // (Bitcoin varint encoding vs ascii-decimal, the latter is not - // self-terminating which leads to ambiguities). - // See also: - // https://en.bitcoin.it/wiki/Protocol_documentation#Variable_length_integer - // https://github.com/trezor/trezor-mcu/blob/master/firmware/ethereum.c#L602 - // https://github.com/trezor/trezor-mcu/blob/master/firmware/crypto.c#L36 - } else if (signatureType == SignatureType.Trezor) { - require( - signature.length == 65, - "LENGTH_65_REQUIRED" - ); - v = uint8(signature[0]); - r = signature.readBytes32(1); - s = signature.readBytes32(33); - recovered = ecrecover( - keccak256(abi.encodePacked( - "\x19Ethereum Signed Message:\n\x20", - hash - )), - v, - r, - s - ); - isValid = signerAddress == recovered; - return isValid; } // Anything else is illegal (We do not return false because diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol index b00c5e8da..1fe88b908 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol @@ -39,8 +39,7 @@ contract MSignatureValidator is Wallet, // 0x04 Validator, // 0x05 PreSigned, // 0x06 - Trezor, // 0x07 - NSignatureTypes // 0x08, number of signature types. Always leave at end. + NSignatureTypes // 0x07, number of signature types. Always leave at end. } /// @dev Verifies signature using logic defined by Wallet contract. -- cgit v1.2.3