An alternative full node implementation of LBRY's blockchain written in Go (golang)

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Dave Collins 218906a91e Make the race detect happy. Since the Z values are normalized (which ordinarily mutates them as needed) before checking for equality, the race detector gets confused when using a global value for the field representation of the value 1 and passing it into the various internal arithmetic routines and reports a false positive. Even though the race was a false positive and had no adverse effects, this commit silences the race detector by creating new variables at the top level and passing them instead of the global fieldOne variable. The global is still used for comparison operations since those have no potential to mutate the value and hence don't trigger the race detector.		2014-02-13 10:59:14 -06:00
.gitignore	Initial commit.	2013-06-13 12:45:48 -05:00
.travis.yml	Add support for TravisCI.	2013-12-23 11:43:10 -06:00
bench_test.go	Add bench for adding Jacobian points where Z!=1.	2014-02-12 13:53:17 -06:00
btcec.go	Make the race detect happy.	2014-02-13 10:59:14 -06:00
btcec_test.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
cov_report.sh	Initial implementation.	2013-06-13 14:38:54 -05:00
doc.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
field.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
field_test.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
internal_test.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
LICENSE	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
pubkey.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
pubkey_test.go	gofmt	2014-02-04 16:17:45 -05:00
README.md	Bring README.md up-to-date with the current status.	2013-12-28 15:30:33 -06:00
signature.go	Add 2014 to copyright dates.	2014-01-08 23:51:37 -06:00
signature_test.go	gofmt	2014-02-04 16:17:45 -05:00
test_coverage.txt	Make the race detect happy.	2014-02-13 10:59:14 -06:00

README.md

btcec

[] (https://travis-ci.org/conformal/btcec)

Package btcec implements elliptic curve cryptography needed for working with Bitcoin (secp256k1 only for now). It is designed so that it may be used with the standard crypto/ecdsa packages provided with go. There is a test suite which provides extensive coverage. See test_coverage.txt for the current coverage (using gocov). On a UNIX-like OS, the script cov_report.sh can be used to generate the report. Package btcec uses work from ThePiachu which is licensed under the same terms as Go. The Conformal original is licensed under the liberal ISC license.

This package is one of the core packages from btcd, an alternative full-node implementation of bitcoin which is under active development by Conformal. Although it was primarily written for btcd, this package has intentionally been designed so it can be used as a standalone package for any projects needing to use secp256k1 elliptic curve cryptography.

Sample Use

	import crypto/ecdsa

	pubKey, err := btcec.ParsePubKey(pkStr, btcec.S256())

	signature, err := btcec.ParseSignature(sigStr, btcec.S256())

	ok := ecdsa.Verify(pubKey, message, signature.R, signature.S)

Documentation

Full go doc style documentation for the project can be viewed online without installing this package by using the GoDoc site here.

You can also view the documentation locally once the package is installed with the godoc tool by running godoc -http=":6060" and pointing your browser to http://localhost:6060/pkg/github.com/conformal/btcec

Installation

$ go get github.com/conformal/btcec

GPG Verification Key

All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from Conformal. To verify the signature perform the following:

Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt
Import the public key into your GPG keyring:
```
gpg --import GIT-GPG-KEY-conformal.txt
```
Verify the release tag with the following command where TAG_NAME is a placeholder for the specific tag:
```
git tag -v TAG_NAME
```

License

Package btcec is licensed under the liberal ISC License except for btcec.go and btcec_test.go which is under the same license as Go.