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940 B
940 B
base58
Converts a base58 zpub to hex
+bip84 "zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs"
btc-address
Import lib; optionally set up env
=btca -build-file %/lib/btc-address/hoon
=xpub "zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs"
Test child public key from xpub
(child-from-xpub:btca xpub 1)
(child-from-xpub:btca xpub (dec (bex 31)))
:: should error as index is too high (hardened key range)
(child-from-xpub:btca xpub (bex 31))
Test xpub parsing
(parse-xpub:btca xpub)
Test addition and ECC point checking
=px (parse-xpub:btca xpub)
=pubk ?~ px ~ pubk.u.px
(is-point:btca pubk)
=index 256
`@ux`(add (lsh 3 4 (big-endian-brap:btca pubk)) index)
Test computing I
(bind px |=(px=parsed-xpub:btca (compute-i:btca px 1)))