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weissjeffm/mysession.js

Last active January 5, 2021 16:50
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Bitcoin private key sharing, with shamir's secret splitting using secrets.js and bitaddress.org
Raw
mysession.js
//init - not sure if necessary
secrets.setRNG()
secrets.init(3)
//encode
secrets.share(
ninja.publicKey.getHexFromByteArray(
Bitcoin.Base58.decode("5HyLghwYt9hGVZVSuSJwpj2tgfUqWqdVd2jy7ZC45m55b8zAKeN")),
4, 2)
//where "5H..." is the private key, 4 is the number of shares, 2 is the threshhold
//output. put these codes in 4 separate places.
["uHMdmF9NJnG2ppKyo5XsnxtgLcD9JUyLF45Nk3fW74gfhagA3emwB",
"uLT3FKdQemTx5rLH9oE6iKJT9b1bxQ7P6SShXbRGzeAZaYYKeQYJ8",
"uNQ2fbF3RqQ2Y7PnCZPsm8iuYCQkJwGjKxTJoudva9YEK3fZ9hDZV",
"uS799uzDE2i9CobekBN7iMRF714UjWs85Csn7qSbGVVKRX3JFEibw"]
//decode
Bitcoin.Base58.encode(
Crypto.util.hexToBytes(
secrets.combine(["uHMdmF9NJnG2ppKyo5XsnxtgLcD9JUyLF45Nk3fW74gfhagA3emwB", "uLT3FKdQemTx5rLH9oE6iKJT9b1bxQ7P6SShXbRGzeAZaYYKeQYJ8"].
map(Bitcoin.Base58.decode).
map(ninja.publicKey.getHexFromByteArray))))
//where ["uH ...", "uL ..."] is the available shares (minimum threshhold)
//output
"5HyLghwYt9hGVZVSuSJwpj2tgfUqWqdVd2jy7ZC45m55b8zAKeN"
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