29 Commits (566d5c0777c2c5ee1a8fe3c0aee1e5c8c69053e2)

Author	SHA1	Message	Date
Felix Lange	c6069a627c	crypto, crypto/secp256k1: add CompressPubkey (#15626) ... This adds the inverse to DecompressPubkey and improves a few minor details in crypto/secp256k1.	7 years ago
Felix Lange	e85b68ef53	crypto: add DecompressPubkey, VerifySignature (#15615) ... We need those operations for p2p/enr. Also upgrade github.com/btcsuite/btcd/btcec to the latest version and improve BenchmarkSha3. The benchmark printed extra output that confused tools like benchstat and ignored N.	7 years ago
Felix Lange	5f7826270c	all: unify big.Int zero checks, use common/math in more places (#3716) ... * common/math: optimize PaddedBigBytes, use it more name old time/op new time/op delta PaddedBigBytes-8 71.1ns ± 5% 46.1ns ± 1% -35.15% (p=0.000 n=20+19) name old alloc/op new alloc/op delta PaddedBigBytes-8 48.0B ± 0% 32.0B ± 0% -33.33% (p=0.000 n=20+20) * all: unify big.Int zero checks Various checks were in use. This commit replaces them all with Int.Sign, which is cheaper and less code. eg templates: func before(x *big.Int) bool { return x.BitLen() == 0 } func after(x *big.Int) bool { return x.Sign() == 0 } func before(x *big.Int) bool { return x.BitLen() > 0 } func after(x *big.Int) bool { return x.Sign() != 0 } func before(x *big.Int) int { return x.Cmp(common.Big0) } func after(x *big.Int) int { return x.Sign() } * common/math, crypto/secp256k1: make ReadBits public in package math	8 years ago
Felix Lange	9b0af51386	crypto: add btcec fallback for sign/recover without cgo (#3680) ... * vendor: add github.com/btcsuite/btcd/btcec * crypto: add btcec fallback for sign/recover without cgo This commit adds a non-cgo fallback implementation of secp256k1 operations. * crypto, core/vm: remove wrappers for sha256, ripemd160	8 years ago
Felix Lange	96778a1c21	crypto/secp256k1: sign with deterministic K (rfc6979) (#3561)	8 years ago
Felix Lange	e0ceeab0d1	crypto/secp256k1: update to github.com/bitcoin-core/secp256k1 @ 9d560f9 (#3544) ... - Use defined constants instead of hard-coding their integer value. - Allocate secp256k1 structs on the C stack instead of converting []byte - Remove dead code	8 years ago
Péter Szilágyi	18c77744ff	all: fix spelling errors	8 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
Felix Lange	02356b36d6	crypto/secp256k1: remove dependency on libgmp ... Turns out we actually don't need it, USE_NUM_NONE works because we also set USE_FIELD_INV_BUILTIN.	9 years ago
Gustav Simonsson	c8ad64f33c	crypto, crypto/ecies, crypto/secp256k1: libsecp256k1 scalar mult ... thanks to Felix Lange (fjl) for help with design & impl	9 years ago
Gustav Simonsson	27a50c8f4b	core/secp256k1: update libsecp256k1 Go wrapper and tests	9 years ago
Felix Lange	e344e1d490	crypto/secp256k1: drop pkgsrc paths from CFLAGS ... They cause compiler warnings for people who don't have these directories. People with pkgsrc can add the directory through CGO_CFLAGS instead.	9 years ago
Felix Lange	5159f8f649	crypto/secp256k1: raise internal errors as recoverable Go panic	9 years ago
Felix Lange	1b29aed128	crypto/secp256k1: verify recovery ID before calling libsecp256k1 ... The C library treats the recovery ID as trusted input and crashes the process for invalid values, so it needs to be verified before calling into C. This will inhibit the crash in #1983. Also remove VerifySignature because we don't use it.	9 years ago
Felix Lange	16b0bc7c3b	crypto/secp256k1: add C compiler flags for pkgsrc ... pkgsrc is a cross-platform package manager that also supports OS X.	9 years ago
Gustav Simonsson	f32fa075f1	core/secp256k1: update libsecp256k1 Go wrapper and tests	9 years ago
Fynn	7065ebd2ed	FreeBSD support	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	9918b6c84e	Remove the awesome, ever misunderstood entropy mixing	10 years ago
Maran	04e216319e	Adding flags to facilitate cross compiling to ARM	10 years ago
Gustav Simonsson	941f051358	libsecp256k1 #define NDEBUG	10 years ago
obscuren	50bbdfe582	Link GMP	10 years ago
Gustav Simonsson	d9b37b6da7	Update Go wrapper around libbsecp256k1	10 years ago
obscuren	238f39a42e	Validate seckey when generating pub key	10 years ago
Gustav Simonsson	8c056aebe1	Set both key generation and ECDSA nonce to use mixed entropy ... * Move random entropy functions to new package randentropy * Add function to get n bytes entropy where up to first 32 bytes are mixed with OS entropy sources	10 years ago
obscuren	a008c21cf0	Fixed Sign nonce	10 years ago
obscuren	67f9783e6a	Moved `obscuren` secp256k1-go	10 years ago