LBRYCommunity/bitcoinjs-lib
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script: use bip66 for signature checking

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This commit is contained in:
Daniel Cousens 2015-08-22 11:54:00 +10:00
parent e1cb5e6152
commit abac254d0d
2 changed files with 3 additions and 13 deletions
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2
package.json
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@ -46,7 +46,7 @@
}, },
"dependencies": { "dependencies": {
"bigi": "^1.4.0", "bigi": "^1.4.0",
"bip66": "^1.0.8", "bip66": "^1.1.0",
"bs58check": "^1.0.5", "bs58check": "^1.0.5",
"create-hash": "^1.1.0", "create-hash": "^1.1.0",
"create-hmac": "^1.1.3", "create-hmac": "^1.1.3",

14
src/script.js
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@ -1,8 +1,8 @@
var bip66 = require('bip66')
var bufferutils = require('./bufferutils') var bufferutils = require('./bufferutils')
var typeforce = require('typeforce') var typeforce = require('typeforce')
var types = require('./types') var types = require('./types')
var ECSignature = require('./ecsignature')
var ecurve = require('ecurve') var ecurve = require('ecurve')
var curve = ecurve.getCurveByName('secp256k1') var curve = ecurve.getCurveByName('secp256k1')
@ -135,17 +135,7 @@ function isCanonicalPubKey (buffer) {
function isCanonicalSignature (buffer) { function isCanonicalSignature (buffer) {
if (!Buffer.isBuffer(buffer)) return false if (!Buffer.isBuffer(buffer)) return false
try { return bip66.check(buffer.slice(0, -1))
ECSignature.parseScriptSignature(buffer)
} catch (e) {
if (!(e.message.match(/Not a DER sequence|Invalid sequence length|Expected a DER integer|R length is zero|S length is zero|R value excessively padded|S value excessively padded|R value is negative|S value is negative|Invalid hashType/))) {
throw e
}
return false
}
return true
} }
function isPubKeyHashInput (script) { function isPubKeyHashInput (script) {