View Source BitcoinLib.Key.HD.Fingerprint (BitcoinLib v0.1.3)

A fingerprint is a small hash of a public key

Link to this section Summary

Functions

Adds a fingerprint to a public key

Compute a private key's fingerprint

Link to this section Functions

@spec append(%BitcoinLib.Key.HD.ExtendedPrivate{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}) :: %BitcoinLib.Key.HD.ExtendedPrivate{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}
@spec append(%BitcoinLib.Key.HD.ExtendedPublic{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}) :: %BitcoinLib.Key.HD.ExtendedPublic{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}

Adds a fingerprint to a public key

examples

Examples

iex> %BitcoinLib.Key.HD.ExtendedPrivate { ...> key: 0xE8F32E723DECF4051AEFAC8E2C93C9C5B214313817CDB01A1494B917C8436B35, ...> chain_code: 0x873DFF81C02F525623FD1FE5167EAC3A55A049DE3D314BB42EE227FFED37D508 ...> } ...> |> BitcoinLib.Key.HD.Fingerprint.append() %BitcoinLib.Key.HD.ExtendedPrivate {

fingerprint: 0x3442193E,
key: 0xE8F32E723DECF4051AEFAC8E2C93C9C5B214313817CDB01A1494B917C8436B35,
chain_code: 0x873DFF81C02F525623FD1FE5167EAC3A55A049DE3D314BB42EE227FFED37D508

}

iex> %BitcoinLib.Key.HD.ExtendedPublic{ ...> key: 0x252C616D91A2488C1FD1F0F172E98F7D1F6E51F8F389B2F8D632A8B490D5F6DA9, ...> chain_code: 0x463223AAC10FB13F291A1BC76BC26003D98DA661CB76DF61E750C139826DEA8B ...> } ...> |> BitcoinLib.Key.HD.Fingerprint.append() %BitcoinLib.Key.HD.ExtendedPublic{

fingerprint: 0x18C1259,
key: 0x252C616D91A2488C1FD1F0F172E98F7D1F6E51F8F389B2F8D632A8B490D5F6DA9,
chain_code: 0x463223AAC10FB13F291A1BC76BC26003D98DA661CB76DF61E750C139826DEA8B

}

@spec compute(%BitcoinLib.Key.HD.ExtendedPrivate{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}) :: binary()
@spec compute(%BitcoinLib.Key.HD.ExtendedPublic{
  chain_code: term(),
  depth: term(),
  fingerprint: term(),
  index: term(),
  key: term(),
  parent_fingerprint: term()
}) :: binary()

Compute a private key's fingerprint

examples

Examples

iex> %BitcoinLib.Key.HD.ExtendedPrivate { ...> key: 0xE8F32E723DECF4051AEFAC8E2C93C9C5B214313817CDB01A1494B917C8436B35, ...> chain_code: 0x873DFF81C02F525623FD1FE5167EAC3A55A049DE3D314BB42EE227FFED37D508 ...> } ...> |> BitcoinLib.Key.HD.Fingerprint.compute() 0x3442193E

iex> %BitcoinLib.Key.HD.ExtendedPublic{ ...> key: 0x252C616D91A2488C1FD1F0F172E98F7D1F6E51F8F389B2F8D632A8B490D5F6DA9, ...> chain_code: 0x463223AAC10FB13F291A1BC76BC26003D98DA661CB76DF61E750C139826DEA8B ...> } ...> |> BitcoinLib.Key.HD.Fingerprint.compute() 0x18C1259