Add functions for serializing keys as text #272
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KtorZ
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May 16, 2019
paweljakubas
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To store XPrv and XPub in a database column or text file, a hex-encoded string is best.
KtorZ
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May 16, 2019
| -> Property | ||
| prop_roundtripXPriv xpriv = do | ||
| let (Right xpriv') = (deserializeXPrv . serializeXPrv) xpriv | ||
| xpriv === xpriv' |
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This should rather be written:
xpriv' = (deserializeXPrv . serializeXPrv) xpriv
Right xpriv === xpriv'With the latter version, in case the property fails, we get a nice error output with a counter example from Quickcheck. With the former, it blows up because of an invalid pattern-match 😬
| genRootKeys :: Gen (Key 'RootK XPrv) | ||
| genRootKeys = do | ||
| (s, g, e) <- (,,) | ||
| <$> genPassphrase @"seed" (0, 32) |
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Minor remark but the seed should be at least 16-bit according to cardano-crypto:
-- | Generate a new XPrv from an entropy seed
--
-- The seed should be at least 16 bytes, although it is not enforced
--
-- The passphrase encrypt the secret key in memory
generateNew :: (ByteArrayAccess keyPassPhrase, ByteArrayAccess generationPassPhrase, ByteArrayAccess seed)We don't actually have any comment on the matter in our code either. I'll put a point on the blackboard.
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address review remarks
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Relates to #143.
Overview
To store XPrv and XPub in a database column or text file, a hex-encoded string is suitable.