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45 lines
2.9 KiB
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45 lines
2.9 KiB
Markdown
---
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date: 2016-06-27
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labels:
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- Amendments
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category: 2016
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theme:
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---
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# Multi-Signing Now Available #
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As [predicted previously](https://developers.ripple.com/blog/2016/multisign-reminder.html), multi-signing became available on the Ripple Consensus Ledger this afternoon in Pacific time ([2016-06-27T11:34:41Z](https://xrpcharts.ripple.com/#/transactions/168F8B15F643395E59B9977FC99D6310E8708111C85659A9BAF8B9222EEAC5A7), to be exact).
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Multi-signing provides more flexibility for sending transactions from your Ripple address. You can use multi-signing alongside a master key pair or regular key pair, or you can disable your other keys and use multi-signing exclusively. You can set and update a list of up to 8 signers, with customizable weights and quorum enabling many different use cases. The members of your signer list can be any Ripple addresses, whether they're funded addresses in the ledger or not.
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Institutional users, in particular, can use the greater security of requiring multiple keys stored in different places to protect high-value addresses and large XRP holdings. Makers and experimenters should find lots of potential applications relating to internet-of-things and smart contracts. Here are just a few ideas of ways you might set up multi-signing for an address:
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- **N-factor Auth:** Store 2 or more keys on different devices, and require all the devices to sign each transaction.
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- **M-of-N:** Give keys to multiple people, and require a majority of signers to sign each transaction.
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- **Delegate a backup plan:** Designate a team of people who can send transactions for you by working together, in case you're unavailable. Keep using single signatures for normal business.
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- **Primary and Approvals:** Use the weights in your signer list to require a specific signer along with at least one other.
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The Ripple Consensus Ledger's multi-signing feature also allows signers to independently rotate their keys, for even greater security. Here's a brief look at how:
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1. Include the signer's address in your SignerList.
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2. Fund the signer's address in the ledger.
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3. Assign a [Regular Key Pair](https://ripple.com/build/transactions/#setregularkey) to the signer's address and disable its master key. (Funded addresses can only sign using their master key pair if it's not disabled.)
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4. Have that signer use its regular key pair to contribute to your multi-signatures.
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## Further Reading ##
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- [Multi-Signing Summary](https://ripple.com/build/transactions/#multi-signing)
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- [How to Multi-Sign](https://ripple.com/build/how-to-multi-sign/)
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- [MultiSign Amendment](https://ripple.com/build/amendments/#multisign)
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## Other resources: ##
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* The Ripple Forum (_Disabled._ Formerly `forum.ripple.com`)
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* The Ripple Dev Blog: <https://developers.ripple.com/blog/>
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* Ripple Technical Services: [support@ripple.com](mailto:support@ripple.com)
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* XRP Chat: <http://www.xrpchat.com/>
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