Signer to sign messages using a private key directly.
Note: this should not be used in production systems. Please see Cartouche.Signer.CloudKMS.
Summary
Functions
Get the Ethereum address associated with the given private key.
Signs the given message using the private key, after digesting the message with keccak.
Signs the given message which was already digested.
Functions
Get the Ethereum address associated with the given private key.
Examples
iex> priv_key = "800509fa3e80882ad0be77c27505bdc91380f800d51ed80897d22f9fcc75f4bf" |> Base.decode16!(case: :mixed)
iex> {:ok, address} = Cartouche.Signer.Curvy.get_address(priv_key)
iex> Cartouche.Hex.to_address(address)
"0x63Cc7c25e0cdb121aBb0fE477a6b9901889F99A7"@spec sign(String.t(), binary()) :: {:ok, Curvy.Signature.t()} | {:error, String.t()}
Signs the given message using the private key, after digesting the message with keccak.
Examples
iex> use Cartouche.Hex
iex> priv_key = ~h[0x800509fa3e80882ad0be77c27505bdc91380f800d51ed80897d22f9fcc75f4bf]
iex> {:ok, sig} = Cartouche.Signer.Curvy.sign("test", priv_key)
iex> {:ok, recid} = Cartouche.Recover.find_recid("test", sig, ~h[0x63Cc7c25e0cdb121aBb0fE477a6b9901889F99A7])
iex> Cartouche.Recover.recover_eth("test", %{sig|recid: recid}) |> Cartouche.Hex.to_address()
"0x63Cc7c25e0cdb121aBb0fE477a6b9901889F99A7"@spec sign_digest(String.t(), binary()) :: {:ok, Curvy.Signature.t()} | {:error, String.t()}
Signs the given message which was already digested.
Examples
iex> use Cartouche.Hex
iex> priv_key = ~h[0x800509fa3e80882ad0be77c27505bdc91380f800d51ed80897d22f9fcc75f4bf]
iex> message_hash = ~h[0x9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658]
iex> {:ok, sig} = Cartouche.Signer.Curvy.sign_digest(message_hash, priv_key)
iex> {:ok, recid} = Cartouche.Recover.find_recid("test", sig, ~h[0x63Cc7c25e0cdb121aBb0fE477a6b9901889F99A7])
iex> Cartouche.Recover.recover_eth("test", %{sig|recid: recid}) |> Cartouche.Hex.to_address()
"0x63Cc7c25e0cdb121aBb0fE477a6b9901889F99A7"