13 Commits (0fa9a8929c8a55d1b624479cead2bb960ada7cfd)

Author	SHA1	Message	Date
Jeffrey Wilcke	bbc4ea4ae8	core/vm: improved EVM run loop & instruction calling (#3378) ... The run loop, which previously contained custom opcode executes have been removed and has been simplified to a few checks. Each operation consists of 4 elements: execution function, gas cost function, stack validation function and memory size function. The execution function implements the operation's runtime behaviour, the gas cost function implements the operation gas costs function and greatly depends on the memory and stack, the stack validation function validates the stack and makes sure that enough items can be popped off and pushed on and the memory size function calculates the memory required for the operation and returns it. This commit also allows the EVM to go unmetered. This is helpful for offline operations such as contract calls.	8 years ago
Péter Szilágyi	08eea0f0e4	accounts, core, crypto, internal: use normalised V during signature handling (#3455) ... To address increasing complexity in code that handles signatures, this PR discards all notion of "different" signature types at the library level. Both the crypto and accounts package is reduced to only be able to produce plain canonical secp256k1 signatures. This makes the crpyto APIs much cleaner, simpler and harder to abuse.	8 years ago
Felix Lange	e4736fe469	core/vm: hide ecrecover error message ... Fixes #2825	8 years ago
Ricardo Catalinas Jiménez	436fc8d76a	all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}() ... As we aren't really using the standarized SHA-3	9 years ago
Gustav Simonsson	371871d685	parmas, crypto, core, core/vm: homestead consensus protocol changes ... * change gas cost for contract creating txs * invalidate signature with s value greater than secp256k1 N / 2 * OOG contract creation if not enough gas to store code * new difficulty adjustment algorithm * new DELEGATECALL op code	9 years ago
Jeffrey Wilcke	361082ec4b	cmd/evm, core/vm, test: refactored VM and core ... * Moved `vm.Transfer` to `core` package and changed execution to call `env.Transfer` instead of `core.Transfer` directly. * core/vm: byte code VM moved to jump table instead of switch * Moved `vm.Transfer` to `core` package and changed execution to call `env.Transfer` instead of `core.Transfer` directly. * Byte code VM now shares the same code as the JITVM * Renamed Context to Contract * Changed initialiser of state transition & unexported methods * Removed the Execution object and refactor `Call`, `CallCode` & `Create` in to their own functions instead of being methods. * Removed the hard dep on the state for the VM. The VM now depends on a Database interface returned by the environment. In the process the core now depends less on the statedb by usage of the env * Moved `Log` from package `core/state` to package `core/vm`.	9 years ago
Jeffrey Wilcke	846f34f78b	core/vm, tests: implemented semi-jit vm ... * changed stack and removed stack ptr. Let go decide on slice reuse.	9 years ago
Felix Lange	bfbcfbe4a9	all: fix license headers one more time ... I forgot to update one instance of "go-ethereum" in commit 3f047be5a.	9 years ago
Felix Lange	3f047be5aa	all: update license headers to distiguish GPL/LGPL ... All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".	9 years ago
Felix Lange	ea54283b30	all: update license information	9 years ago
Gustav Simonsson	6e3b58e491	Remove unneeded if check on EC recover padding	10 years ago
Gustav Simonsson	ad5b5a4895	Pad precompiled EC recover input and add validations	10 years ago
obscuren	fa4aefee44	core/vm: cleanup and renames	10 years ago
Gustav Simonsson	2591883a18	Use logger.Error instead of 0 with glog	10 years ago
Gustav Simonsson	3f306f63d4	Forward and log EC recover err and remove dup pubkey len check	10 years ago
Gustav Simonsson	c26c8d3a44	Read most protocol params from common/params.json ... * Add params package with exported variables generated from github.com/ethereum/common/blob/master/params.json * Use params package variables in applicable places * Add check for minimum gas limit in validation of block's gas limit * Remove common/params.json from go-ethereum to avoid outdated version of it	10 years ago
obscuren	61c5edcb57	Cleanup.	10 years ago
obscuren	0330077d76	moved state and vm to core	10 years ago
Ethan Buchman	d2fa6e7753	vm: explicit error checks in ecrecover. closes #505	10 years ago
obscuren	b523441361	Moved ethutil => common	10 years ago
obscuren	b383ff0b96	New gas prices model	10 years ago
obscuren	4704a0a288	remove pre compiled for tests	10 years ago
obscuren	b99b2c446c	Precompiled contract & Depth change ... * Added pre-compiled contract 0x04 (mem cpy) * Changed depth error to return the gas instead of consuming	10 years ago
obscuren	4dbdcaecb1	Moved pre-compiled, moved depth check ... * Depth check has been moved to the execution * Pre compiled execution has been moved to the VM * PrecompiledAddress has been renamed to PrecompiledAccount	10 years ago
obscuren	acf4b5753f	Core changes ... * Code = '' if gas < len(D) * 5 * Sha3 gas 10 + 10 * len(D), rounding up 32 bytes * Sha256 gas 50 + 50 * len(D), rounding up 32 bytes * Ripmed gas 50 + 50 * len(D), rounding up 32 bytes * Accounts and value transfers no longer reverted	10 years ago
obscuren	99481a245a	Check for known block err and ignore	10 years ago
obscuren	2df8ad6307	Added state tests	10 years ago
obscuren	fd9da72536	ethcrypto => crypto	10 years ago
obscuren	20c742e474	Moved ethvm => vm	10 years ago
obscuren	f55e39cf1a	Tests for native function calling	10 years ago
obscuren	f3196c915a	Precompiled crypto contracts	10 years ago