SignatureProfanity

Tool to find signature from given solidity functionName(address,uint) using all CPU-cores.

Suitable for finding exact signature to reduce gas usage a bit.

Compile from source code

# install golang https://go.dev/doc/install
git clone https://github.com/0fuz/SignatureProfanity.git
go mod tidy
go build

How it works:

1. Solidity fn swap(address,uint256[]) which keccak256 signature is 0x97c3c44d (https://emn178.github.io/online-tools/keccak_256.html)
2. Want pretty signature one of these 0x00000001,0x00000002,0x00000003,0x00000004,0x00000005,0x00000006,0x00000007,0x00000008,0x00000009

3. ./SignatureProfanity "swap(address,uint256[])" 0x00000001,0x00000002,0x00000003,0x00000004,0x00000005,0x00000006,0x00000007,0x00000008,0x00000009

4. # output of call:
   Arg length is 2
   Using arg sigs:  0x00000001,0x00000002,0x00000003,0x00000004,0x00000005,0x00000006,0x00000007,0x00000008,0x00000009
   CPU core count:  8
   Benchmark started
   Benchmark ended
   10k variants in  1.873ms
   Search target signature salt now...
   50000000
   100000000
   150000000
   200000000
   ...
   850000000
   swap_1bfbf68dd(address,uint256[]) 0x00000007
   900000000
   950000000
   1000000000
   swap_99b7df1d1(address,uint256[]) 0x00000002
   swap_e070d00c(address,uint256[]) 0x00000005
   1050000000
   1100000000
   1150000000
   ...
   1500000000
   swap_266bfa69b2(address,uint256[]) 0x00000004

5. To have sig 0x00000002 need use fn name with salt: swap_99b7df1d1