Trait bdk::keys::GeneratableKey

pub trait GeneratableKey<Ctx: ScriptContext>: Sized {
    type Entropy: AsMut<[u8]> + Default;
    type Options;
    type Error: Debug;

    // Required method
    fn generate_with_entropy(
        options: Self::Options,
        entropy: Self::Entropy
    ) -> Result<GeneratedKey<Self, Ctx>, Self::Error>;

    // Provided method
    fn generate(
        options: Self::Options
    ) -> Result<GeneratedKey<Self, Ctx>, Self::Error> { ... }
}

Trait for keys that can be generated

The same rules about ScriptContext and ValidNetworks from IntoDescriptorKey apply.

This trait is particularly useful when combined with DerivableKey: if Self implements it, the returned GeneratedKey will also implement it. The same is true for IntoDescriptorKey: the generated keys can be directly used in descriptors if Self is also IntoDescriptorKey.

Required Associated Types

type Entropy: AsMut<[u8]> + Default

Type specifying the amount of entropy required e.g. [u8;32]

type Options

Extra options required by the generate_with_entropy

type Error: Debug

Returned error in case of failure

Required Methods

fn generate_with_entropy( options: Self::Options, entropy: Self::Entropy ) -> Result<GeneratedKey<Self, Ctx>, Self::Error>

Generate a key given the extra options and the entropy

Provided Methods

fn generate( options: Self::Options ) -> Result<GeneratedKey<Self, Ctx>, Self::Error>

Generate a key given the options with a random entropy

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<Ctx: ScriptContext> GeneratableKey<Ctx> for ExtendedPrivKey

type Entropy = [u8; 32]

type Options = ()

type Error = Error

fn generate_with_entropy( _: Self::Options, entropy: Self::Entropy ) -> Result<GeneratedKey<Self, Ctx>, Self::Error>

impl<Ctx: ScriptContext> GeneratableKey<Ctx> for PrivateKey

type Entropy = [u8; 32]

type Options = PrivateKeyGenerateOptions

type Error = Error

fn generate_with_entropy( options: Self::Options, entropy: Self::Entropy ) -> Result<GeneratedKey<Self, Ctx>, Self::Error>

Implementors

impl<Ctx: ScriptContext> GeneratableKey<Ctx> for Mnemonic

Available on crate feature keys-bip39 only.

type Entropy = [u8; 32]

type Options = (WordCount, Language)

type Error = Option<Error>