How can all possible numbers in 256-bit space be squeezed into 160-bit space?

How can all possible numbers in 256-bit space be squeezed into 160-bit space?

Bitcoin addresses are essentially 160-bit hashes of a 256-bit public key. Huh? How can all possible numbers in 256-bit space be squeezed into 160-bit space? Does that mean any given bitcoin address could be derived from more than just one public key?

https://ift.tt/2mW1nBy

Comments

Post a Comment

Popular posts from this blog

New z-enemy 1.26 Nvidia GPU Miner With Improved Performance

Image
New z-enemy 1.26 Nvidia GPU Miner With Improved Performance The latest z-enemy 1.26 Nvidia GPU miner comes with additional performance boost in a number of the supported crypto algorithms as well as improved stability. We should note that the latest version also marks the removal of support for the Renesis algorithm, apparently due to the project introducing this algorithm getting abandoned. The new version adds up to +5-7% for X16r and X16s, +7% for Bitcore, few percent for other algorithms such as X17, C11, Aergo … on GTX 10×0 cards. The Hex algorithm gets +10% for GTX 10×0 cards and +2% for RTX 20×0 GPUs as a hashrate boost. The latest z-enemy version 1.26 is available for CUDA 9.1, 9.2 and 10.0 for 64-bit Windows versions as well as CUDA 9.0, CUDA 9.1, CUDA 9.2 and CUDA 10 binaries for Linux (HiveOS, PiMP OS, EthOS & Ubuntu). Make sure that you have the respective recent video driver version installed for the CUDA version you want to use – 388+ for 9.1, 397+ for 9.2 and 411+ ...
Read more

New coin daemon crashes ReadBlockFromDisk: Errors in block header at CBlockDiskPos(nFile=0, nPos=8)

New coin daemon crashes ReadBlockFromDisk: Errors in block header at CBlockDiskPos(nFile=0, nPos=8) Hi so I generated the genesis block using std::unique_ptr<CChainParams> CreateChainParams(const std::string& chain) { if (chain == CBaseChainParams::MAIN) return std::unique_ptr<CChainParams>(new CMainParams()); else if (chain == CBaseChainParams::TESTNET) return std::unique_ptr<CChainParams>(new CTestNetParams()); else if (chain == CBaseChainParams::REGTEST) return std::unique_ptr<CChainParams>(new CRegTestParams()); throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain)); } void SelectParams(const std::string& network) { SelectBaseParams(network); globalChainParams = CreateChainParams(network); } void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout) { globalChainParams->UpdateVersionBitsParameters(d, nStartTime, nTimeout); } void MineGenesisBlock(CBl...
Read more