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Trusted Dealer Key Generation

Iron Fish supports two methods for creating multisig accounts: Trusted Dealer Key Generation and Distributed Key Generation (DKG). In Trusted Dealer Key Generation a single party, the trusted dealer, generates accounts for participants in a multisig group by generating an authorizing key for the account and then splitting it into multiple parts; one for each participant.

Note: This means that the Iron Fish node where wallet:multisig:dealer:create is run will hold in memory for a brief period of time the full (unsplit) authorizing key, which allows authorization of transactions. For this reason it is important that the dealer node is fully trusted, and that it runs in a secure compute environment. If an eavesdropper is able to get access to the internal memory of the machine where the dealer node runs, they may be able to get access to the full (unsplit) authorizing key.

Create a participant identity 

Each signer or participant in an Iron Fish multisig account must first generate an identity

ironfish wallet:multisig:participant:create

The participant identity uniquely identifies the participant in the group. The identity is also a public key and allows other members of the group to encrypt data for that participant. The participant's secret key is stored in their Iron Fish wallet.

Generate multisig account imports 

Once all participants have created and shared their identities you can create a multisig account for the list of participant identities using Trusted Dealer Key Generation. When creating an account the trusted dealer must also specify the minumum number of signers required to sign a transaction.

ironfish wallet:multisig:dealer:create


> ironfish wallet:multisig:dealer:create \ -i 72c9f4746cc76d8a4d6a9a065fa78902cf6213842434e6de188cd5af04dec1022a3938c5e795f59b26b61600779f98650d784ff9f9c62d7b90d86ee15508ab16293a9b7b6de2851c1dc3bfc763fa5a4929ee284699ad984207df46cec8704c95f6e1e8a484df477b89d9e9cc8e14a859086868f618d971e256189e18afaa308a0b \ -i 72f64a2091abae9d5e46f16afcdff4cf4fd0acb593a006f60b61ca23656bc86fcb3aa013e98cc967f91d38e6ce62e607aaa0f63749ac510fd7c24451156ef54e1566d168a2f9e67518747f889713e688e986dd0d09a3eaab06be458da8b930f4dab2714c99d3b1961642c7c207bbd42b8159e8dbcd92efab95930c2d68a3bec307 \ -i 724921060d33a228e1f397573d1cbc47c219109350ca222b0e0a0ba612438a2decb3deca348420b66f685dacca5fd3bd84e4d080493a061984b1dd5a41d8138e01726991d9d959067bd3afe9630c325365ee98bc0b4b6d7087e295d1706dc19aa7317e5f2fcabb4f76edc5a5732400b8bda2240138a069d9e845258ef2464fff08 \ -m 2 \ -n MyMultisigAccount

Account 1 Identity 72c9f4746cc76d8a4d6a9a065fa78902cf6213842434e6de188cd5af04dec1022a3938c5e795f59b26b61600779f98650d784ff9f9c62d7b90d86ee15508ab16293a9b7b6de2851c1dc3bfc763fa5a4929ee284699ad984207df46cec8704c95f6e1e8a484df477b89d9e9cc8e14a859086868f618d971e256189e18afaa308a0b ---------------- ifmsaccountnkRNm3IPBUK0BBz/sQg+Z4JuffsYKMQBeZ82hLnORggBAAAAlWi21Y+hl2hAO0Fun38bpSSYgbe8offURRTct6Scitu5CgAAnZFZy1WrH6zS6Ymvv6IWM... Account 2 Identity 72f64a2091abae9d5e46f16afcdff4cf4fd0acb593a006f60b61ca23656bc86fcb3aa013e98cc967f91d38e6ce62e607aaa0f63749ac510fd7c24451156ef54e1566d168a2f9e67518747f889713e688e986dd0d09a3eaab06be458da8b930f4dab2714c99d3b1961642c7c207bbd42b8159e8dbcd92efab95930c2d68a3bec307 ---------------- ifmsaccount6EkhMoZjM5pi/TzlJQIXDb2PCTRtpLlk+OmpBVZ0wHMBAAAAE0rqF3zwTQ1uKm4sX42rdgCnbg5eg12jpTllJFxJpky5CgAA4XvpWm/CWkGpmDqgXO3EJ... Account 3 Identity 724921060d33a228e1f397573d1cbc47c219109350ca222b0e0a0ba612438a2decb3deca348420b66f685dacca5fd3bd84e4d080493a061984b1dd5a41d8138e01726991d9d959067bd3afe9630c325365ee98bc0b4b6d7087e295d1706dc19aa7317e5f2fcabb4f76edc5a5732400b8bda2240138a069d9e845258ef2464fff08 ---------------- ifmsaccountAKLQe4HMT9QpBO9Kls3NHIstM05KO01NUFZb3RicZCwBAAAAgq3GMK8peqPmGFW+q/xyYhHsVAE1PUkSpHKu+gX7kVi5CgAA7sDEk6AaayQmo89XY4WMS...

The command above outputs a list of serialized accounts, one per participant. The account for a participant contains the shared group keys and the signing key for that participant. Each participant's account is encrypted, so only the participant who created the matching identity can import the account.

The dealer should share the output of the command with the multisig participants and each participant should import their account:

ironfish wallet:import

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