Trait sc_keystore::Keystore

pub trait Keystore: Send + Sync {
    // Required methods
    fn sr25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>;
    fn sr25519_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public, Error>;
    fn sr25519_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        msg: &[u8]
    ) -> Result<Option<Signature>, Error>;
    fn sr25519_vrf_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        data: &VrfSignData
    ) -> Result<Option<VrfSignature>, Error>;
    fn sr25519_vrf_output(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        input: &VrfTranscript
    ) -> Result<Option<VrfOutput>, Error>;
    fn ed25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>;
    fn ed25519_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public, Error>;
    fn ed25519_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        msg: &[u8]
    ) -> Result<Option<Signature>, Error>;
    fn ecdsa_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>;
    fn ecdsa_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public, Error>;
    fn ecdsa_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        msg: &[u8]
    ) -> Result<Option<Signature>, Error>;
    fn ecdsa_sign_prehashed(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        msg: &[u8; 32]
    ) -> Result<Option<Signature>, Error>;
    fn bandersnatch_public_keys(
        &self,
        key_type: KeyTypeId
    ) -> Vec<Public, Global>;
    fn bandersnatch_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public, Error>;
    fn bandersnatch_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        msg: &[u8]
    ) -> Result<Option<Signature>, Error>;
    fn bandersnatch_vrf_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        input: &VrfSignData
    ) -> Result<Option<VrfSignature>, Error>;
    fn bandersnatch_vrf_output(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        input: &VrfInput
    ) -> Result<Option<VrfOutput>, Error>;
    fn bandersnatch_ring_vrf_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public,
        input: &VrfSignData,
        prover: &RingProver<Fp<MontBackend<FrConfig, 4>, 4>, KZG<Bls12<Config>>, BandersnatchConfig>
    ) -> Result<Option<RingVrfSignature>, Error>;
    fn bls381_public_keys(
        &self,
        id: KeyTypeId
    ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>;
    fn bls377_public_keys(
        &self,
        id: KeyTypeId
    ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>;
    fn bls381_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>;
    fn bls377_generate_new(
        &self,
        key_type: KeyTypeId,
        seed: Option<&str>
    ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>;
    fn bls381_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public<TinyBLS<Bls12<Config>, Config>>,
        msg: &[u8]
    ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>;
    fn bls377_sign(
        &self,
        key_type: KeyTypeId,
        public: &Public<TinyBLS<Bls12<Config>, Config>>,
        msg: &[u8]
    ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>;
    fn insert(
        &self,
        key_type: KeyTypeId,
        suri: &str,
        public: &[u8]
    ) -> Result<(), ()>;
    fn keys(
        &self,
        key_type: KeyTypeId
    ) -> Result<Vec<Vec<u8, Global>, Global>, Error>;
    fn has_keys(&self, public_keys: &[(Vec<u8, Global>, KeyTypeId)]) -> bool;

    // Provided method
    fn sign_with(
        &self,
        id: KeyTypeId,
        crypto_id: CryptoTypeId,
        public: &[u8],
        msg: &[u8]
    ) -> Result<Option<Vec<u8, Global>>, Error> { ... }
}

Something that generates, stores and provides access to secret keys.

Required Methods

fn sr25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

Returns all the sr25519 public keys for the given key type.

fn sr25519_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

Generate a new sr25519 key pair for the given key type and an optional seed.

Returns an sr25519::Public key of the generated key pair or an Err if something failed during key generation.

fn sr25519_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

Generate an sr25519 signature for a given message.

Receives KeyTypeId and an sr25519::Public key to be able to map them to a private key that exists in the keystore.

Returns an sr25519::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn sr25519_vrf_sign( &self, key_type: KeyTypeId, public: &Public, data: &VrfSignData ) -> Result<Option<VrfSignature>, Error>

Generate an sr25519 VRF signature for the given data.

Receives KeyTypeId and an sr25519::Public key to be able to map them to a private key that exists in the keystore.

Returns None if the given key_type and public combination doesn’t exist in the keystore or an Err when something failed.

fn sr25519_vrf_output( &self, key_type: KeyTypeId, public: &Public, input: &VrfTranscript ) -> Result<Option<VrfOutput>, Error>

Generate an sr25519 VRF output for a given input data.

Receives KeyTypeId and an sr25519::Public key to be able to map them to a private key that exists in the keystore.

Returns None if the given key_type and public combination doesn’t exist in the keystore or an Err when something failed.

fn ed25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

Returns all ed25519 public keys for the given key type.

fn ed25519_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

Generate a new ed25519 key pair for the given key type and an optional seed.

Returns an ed25519::Public key of the generated key pair or an Err if something failed during key generation.

fn ed25519_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

Generate an ed25519 signature for a given message.

Receives KeyTypeId and an ed25519::Public key to be able to map them to a private key that exists in the keystore.

Returns an ed25519::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn ecdsa_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

Returns all ecdsa public keys for the given key type.

fn ecdsa_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

Generate a new ecdsa key pair for the given key type and an optional seed.

Returns an ecdsa::Public key of the generated key pair or an Err if something failed during key generation.

fn ecdsa_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

Generate an ecdsa signature for a given message.

Receives KeyTypeId and an ecdsa::Public key to be able to map them to a private key that exists in the keystore.

Returns an ecdsa::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn ecdsa_sign_prehashed( &self, key_type: KeyTypeId, public: &Public, msg: &[u8; 32] ) -> Result<Option<Signature>, Error>

Generate an ecdsa signature for a given pre-hashed message.

Receives KeyTypeId and an ecdsa::Public key to be able to map them to a private key that exists in the keystore.

Returns an ecdsa::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn bandersnatch_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

Returns all the bandersnatch public keys for the given key type.

fn bandersnatch_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

Generate a new bandersnatch key pair for the given key type and an optional seed.

Returns an bandersnatch::Public key of the generated key pair or an Err if something failed during key generation.

fn bandersnatch_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

Generate an bandersnatch signature for a given message.

Receives KeyTypeId and an bandersnatch::Public key to be able to map them to a private key that exists in the keystore.

Returns an bandersnatch::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn bandersnatch_vrf_sign( &self, key_type: KeyTypeId, public: &Public, input: &VrfSignData ) -> Result<Option<VrfSignature>, Error>

Generate a bandersnatch VRF signature for the given data.

Receives KeyTypeId and an bandersnatch::Public key to be able to map them to a private key that exists in the keystore.

Returns None if the given key_type and public combination doesn’t exist in the keystore or an Err when something failed.

fn bandersnatch_vrf_output( &self, key_type: KeyTypeId, public: &Public, input: &VrfInput ) -> Result<Option<VrfOutput>, Error>

Generate a bandersnatch VRF (pre)output for a given input data.

Receives KeyTypeId and an bandersnatch::Public key to be able to map them to a private key that exists in the keystore.

Returns None if the given key_type and public combination doesn’t exist in the keystore or an Err when something failed.

fn bandersnatch_ring_vrf_sign( &self, key_type: KeyTypeId, public: &Public, input: &VrfSignData, prover: &RingProver<Fp<MontBackend<FrConfig, 4>, 4>, KZG<Bls12<Config>>, BandersnatchConfig> ) -> Result<Option<RingVrfSignature>, Error>

Generate a bandersnatch ring-VRF signature for the given data.

Receives KeyTypeId and an bandersnatch::Public key to be able to map them to a private key that exists in the keystore.

Also takes a [bandersnatch::ring_vrf::RingProver] instance obtained from a valid bandersnatch::ring_vrf::RingContext.

The ring signature is verifiable if the public key corresponding to the signing bandersnatch::Pair is part of the ring from which the [bandersnatch::ring_vrf::RingProver] has been constructed. If not, the produced signature is just useless.

Returns None if the given key_type and public combination doesn’t exist in the keystore or an Err when something failed.

fn bls381_public_keys( &self, id: KeyTypeId ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>

Returns all bls12-381 public keys for the given key type.

fn bls377_public_keys( &self, id: KeyTypeId ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>

Returns all bls12-377 public keys for the given key type.

fn bls381_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>

Generate a new bls381 key pair for the given key type and an optional seed.

Returns an bls381::Public key of the generated key pair or an Err if something failed during key generation.

fn bls377_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>

Generate a new bls377 key pair for the given key type and an optional seed.

Returns an bls377::Public key of the generated key pair or an Err if something failed during key generation.

fn bls381_sign( &self, key_type: KeyTypeId, public: &Public<TinyBLS<Bls12<Config>, Config>>, msg: &[u8] ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>

Generate a bls381 signature for a given message.

Receives KeyTypeId and a bls381::Public key to be able to map them to a private key that exists in the keystore.

Returns an bls381::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn bls377_sign( &self, key_type: KeyTypeId, public: &Public<TinyBLS<Bls12<Config>, Config>>, msg: &[u8] ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>

Generate a bls377 signature for a given message.

Receives KeyTypeId and a bls377::Public key to be able to map them to a private key that exists in the keystore.

Returns an bls377::Signature or None in case the given key_type and public combination doesn’t exist in the keystore. An Err will be returned if generating the signature itself failed.

fn insert( &self, key_type: KeyTypeId, suri: &str, public: &[u8] ) -> Result<(), ()>

Insert a new secret key.

fn keys( &self, key_type: KeyTypeId ) -> Result<Vec<Vec<u8, Global>, Global>, Error>

List all supported keys of a given type.

Returns a set of public keys the signer supports in raw format.

fn has_keys(&self, public_keys: &[(Vec<u8, Global>, KeyTypeId)]) -> bool

Checks if the private keys for the given public key and key type combinations exist.

Returns true iff all private keys could be found.

Provided Methods

fn sign_with( &self, id: KeyTypeId, crypto_id: CryptoTypeId, public: &[u8], msg: &[u8] ) -> Result<Option<Vec<u8, Global>>, Error>

Convenience method to sign a message using the given key type and a raw public key for secret lookup.

The message is signed using the cryptographic primitive specified by crypto_id.

Schemes supported by the default trait implementation:

• sr25519
• ed25519
• ecdsa
• bandersnatch
• bls381
• bls377

To support more schemes you can overwrite this method.

Returns the SCALE encoded signature if key is found and supported, None if the key doesn’t exist or an error when something failed.

Implementations on Foreign Types

impl<T> Keystore for Arc<T>where T: Keystore + ?Sized,

fn sr25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

fn sr25519_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

fn sr25519_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

fn sr25519_vrf_sign( &self, key_type: KeyTypeId, public: &Public, data: &VrfSignData ) -> Result<Option<VrfSignature>, Error>

fn sr25519_vrf_output( &self, key_type: KeyTypeId, public: &Public, input: &VrfTranscript ) -> Result<Option<VrfOutput>, Error>

fn ed25519_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

fn ed25519_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

fn ed25519_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

fn ecdsa_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

fn ecdsa_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

fn ecdsa_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

fn ecdsa_sign_prehashed( &self, key_type: KeyTypeId, public: &Public, msg: &[u8; 32] ) -> Result<Option<Signature>, Error>

fn bandersnatch_public_keys(&self, key_type: KeyTypeId) -> Vec<Public, Global>

fn bandersnatch_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public, Error>

fn bandersnatch_sign( &self, key_type: KeyTypeId, public: &Public, msg: &[u8] ) -> Result<Option<Signature>, Error>

fn bandersnatch_vrf_sign( &self, key_type: KeyTypeId, public: &Public, input: &VrfSignData ) -> Result<Option<VrfSignature>, Error>

fn bandersnatch_vrf_output( &self, key_type: KeyTypeId, public: &Public, input: &VrfInput ) -> Result<Option<VrfOutput>, Error>

fn bandersnatch_ring_vrf_sign( &self, key_type: KeyTypeId, public: &Public, input: &VrfSignData, prover: &RingProver<Fp<MontBackend<FrConfig, 4>, 4>, KZG<Bls12<Config>>, BandersnatchConfig> ) -> Result<Option<RingVrfSignature>, Error>

fn bls381_public_keys( &self, id: KeyTypeId ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>

fn bls377_public_keys( &self, id: KeyTypeId ) -> Vec<Public<TinyBLS<Bls12<Config>, Config>>, Global>

fn bls381_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>

fn bls377_generate_new( &self, key_type: KeyTypeId, seed: Option<&str> ) -> Result<Public<TinyBLS<Bls12<Config>, Config>>, Error>

fn bls381_sign( &self, key_type: KeyTypeId, public: &Public<TinyBLS<Bls12<Config>, Config>>, msg: &[u8] ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>

fn bls377_sign( &self, key_type: KeyTypeId, public: &Public<TinyBLS<Bls12<Config>, Config>>, msg: &[u8] ) -> Result<Option<Signature<TinyBLS<Bls12<Config>, Config>>>, Error>

fn insert( &self, key_type: KeyTypeId, suri: &str, public: &[u8] ) -> Result<(), ()>

fn keys( &self, key_type: KeyTypeId ) -> Result<Vec<Vec<u8, Global>, Global>, Error>

fn has_keys(&self, public_keys: &[(Vec<u8, Global>, KeyTypeId)]) -> bool

Implementors

impl Keystore for MemoryKeystore

impl Keystore for LocalKeystore