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107 lines
2.3 KiB
Plaintext
107 lines
2.3 KiB
Plaintext
:: urbit-style key generation and derivation functions
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::
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/- keygen
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::
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/+ bip32, bip39
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::
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=, keygen
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::
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|%
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++ argon2u
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|= [who=ship tic=byts]
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^- @
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~| [%who who (met 3 who)]
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:: ?> (lte (met 3 who) 4)
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%- (argon2-urbit:argon2:crypto 32)
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:- tic
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=- [(met 3 -) (swp 3 -)]
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%- crip
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(weld "urbitkeygen" (a-co:co who))
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::
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++ child-node-from-seed
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|= [seed=@ typ=tape pass=(unit @t)]
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^- node
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=+ sed=(seed:ds 32^seed typ)
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=+ nom=(from-entropy:bip39 32^sed)
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:+ typ nom
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%- wallet:ds
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%+ to-seed:bip39 nom
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(trip (fall pass ''))
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::
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++ derive-network-seed
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|= [mngs=@ rev=@ud]
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^- @ux
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=+ (seed:ds 64^mngs (weld "network" (a-co:co rev)))
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?: =(0 rev) -
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:: hash again to prevent length extension attacks
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(sha-256l:sha 32 -)
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::
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++ full-wallet-from-ticket
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:: who: username
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:: ticket: password
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:: rev: network key revision
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:: pass: optional passphrase
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::
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|= [who=ship ticket=byts rev=@ud pass=(unit @t)]
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^- vault
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=+ master-seed=(argon2u who ticket)
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=/ cn :: child node
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|= typ=nodetype
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(child-node-from-seed master-seed typ pass)
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::
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:- ^= ownership ^- node
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(cn "ownership")
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::
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:- ^= voting ^- node
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(cn "voting")
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::
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=/ management=node
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(cn "management")
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:- management=management
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::
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:- ^= transfer ^- node
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(cn "transfer")
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::
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:- ^= spawn ^- node
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(cn "spawn")
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::
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^= network ^- uode
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=/ mad :: management seed
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%+ to-seed:bip39
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seed:management
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(trip (fall pass ''))
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=+ sed=(derive-network-seed mad rev)
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[rev sed (urbit:ds sed)]
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::
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++ ds :: derive from raw seed
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|%
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++ wallet
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|= seed=@
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^- ^wallet
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=+ => (from-seed:bip32 64^seed)
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(derive-path "m/44'/60'/0'/0/0")
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:+ [public-key private-key]
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(address-from-prv:ethereum private-key)
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chain-code
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::
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++ urbit
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|= seed=@
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^- edkeys
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=+ =< [pub=pub:ex sec=sec:ex]
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(pit:nu:crub:crypto 256 seed)
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:- ^= auth
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:- (rsh 3 1 (end 3 33 pub))
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(rsh 3 1 (end 3 33 sec))
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^= crypt
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:- (rsh 3 33 pub)
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(rsh 3 33 sec)
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::
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++ seed
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|= [seed=byts salt=tape]
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^- @ux
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%- sha-256l:sha
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:- (add wid.seed (lent salt))
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(cat 3 (crip (flop salt)) dat.seed)
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--
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--
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