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js-bigchaindb-driver
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Added generic setThreshold for thresholdFulfillment

This commit is contained in:
manolodewiner 2017-11-21 10:44:21 +01:00
parent e48636d075
commit 5d217a4a1d
1 changed files with 16 additions and 6 deletions
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22
src/transaction/signTransaction.js
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@ -34,16 +34,26 @@ export default function signTransaction(transaction, ...privateKeys) {
const fulfillmentUri = ed25519Fulfillment.serializeUri()
input.fulfillment = fulfillmentUri
} else if (input.fulfillment.type === 'threshold-sha-256') {
// Not valid for more than one input with m-of-n signatures where m < n.
const thresholdFulfillment = new cc.ThresholdSha256()
input.fulfillment.subconditions.forEach(() => {
const privateKey = privateKeys[0]
privateKeys.splice(0, 1)
const privateKeyBuffer = new Buffer(base58.decode(privateKey))
// m represents the number of signatures needed for this input
let m = 0
input.fulfillment.subconditions.forEach((subcdt) => {
const ed25519subFulfillment = new cc.Ed25519Sha256()
ed25519subFulfillment.sign(new Buffer(serializedTransaction), privateKeyBuffer)
if (privateKeys.length > 0) {
m++
const privateKey = privateKeys[0]
privateKeys.splice(0, 1)
const privateKeyBuffer = new Buffer(base58.decode(privateKey))
ed25519subFulfillment.sign(new Buffer(serializedTransaction), privateKeyBuffer)
} else {
// All conditions are needed as the "circuit definition" is needed.
const publicKeyBuffer = new Buffer(base58.decode(subcdt.public_key))
ed25519subFulfillment.setPublicKey(publicKeyBuffer)
}
thresholdFulfillment.addSubfulfillmentUri(ed25519subFulfillment)
})
thresholdFulfillment.setThreshold(1) // defaults to subconditions.length
thresholdFulfillment.setThreshold(m)
const fulfillmentUri = thresholdFulfillment.serializeUri()
input.fulfillment = fulfillmentUri
}