History

David Hill 761381066d txscript: Add new verification flags. This commit adds two new verification flags to txscript named ScriptVerifyStrictEncoding and ScriptVerifyDerSignatures. The ScriptVerifyStrictEncoding flag enforces signature scripts and public keys to follow the strict encoding requirements. The ScriptVerifyDerSignatures flag enforces signature scripts to follow the strict encoding requirements. These flags mimic Bitcoin Core's SCRIPT_VERIFY_STRICTENC and SCRIPT_VERIFY_DERSIG flags and brings the Bitcoin Core test scripts up to date.		2015-02-12 12:27:44 -05:00
..
bench_test.go	Move the btcec benchmarks into the main package.	2015-02-06 16:53:29 -06:00
btcec.go	Consistency and general cleanup in btcec.	2015-02-06 16:55:34 -06:00
btcec_test.go	Move the btcec benchmarks into the main package.	2015-02-06 16:53:29 -06:00
doc.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
example_test.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
field.go	Consistency and general cleanup in btcec.	2015-02-06 16:55:34 -06:00
field_test.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
genprecomps.go	btcec: Optimize pre-computed table load.	2015-02-12 00:29:45 -06:00
gensecp256k1.go	btcec: Optimize pre-computed table load.	2015-02-12 00:29:45 -06:00
internal_test.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
precompute.go	btcec: Optimize pre-computed table load.	2015-02-12 00:29:45 -06:00
privkey.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
privkey_test.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
pubkey.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
pubkey_test.go	txscript: Add new verification flags.	2015-02-12 12:27:44 -05:00
README.md	btcec: Fix installation link	2015-02-08 13:20:11 +01:00
secp256k1.go	btcec: Optimize pre-computed table load.	2015-02-12 00:29:45 -06:00
signature.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00
signature_test.go	Import btcec repo into btcec directory.	2015-02-06 10:09:24 -06:00

README.md

btcec

[] (https://travis-ci.org/btcsuite/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. A comprehensive suite of test is provided to ensure proper functionality. Package btcec was originally based on work from ThePiachu which is licensed under the same terms as Go, but it has signficantly diverged since then. The Conformal original is licensed under the liberal ISC license.

Although this package was primarily written for btcd, it has intentionally been designed so it can be used as a standalone package for any projects needing to use secp256k1 elliptic curve cryptography.

Documentation

[] (http://godoc.org/github.com/btcsuite/btcd/btcec)

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/btcsuite/btcd/btcec

Installation

$ go get github.com/btcsuite/btcd/btcec

Examples

[Sign Message] (http://godoc.org/github.com/btcsuite/btcd/btcec#example-package--SignMessage)
Demonstrates signing a message with a secp256k1 private key that is first parsed form raw bytes and serializing the generated signature.
[Verify Signature] (http://godoc.org/github.com/btcsuite/btcd/btcec#example-package--VerifySignature)
Demonstrates verifying a secp256k1 signature against a public key that is first parsed from raw bytes. The signature is also parsed from raw bytes.

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