primitives

type AsymmetricCipher interface {
	// Init initializes this cipher with the passed parameters
	Init(params AsymmetricCipherParameters) error

	// Process processes the byte array given in input
	Process(msg []byte) ([]byte, error)
}

type AsymmetricCipherParameters interface {
	CipherParameters

	// IsPublic returns true if the parameters are public, false otherwise.
	IsPublic() bool
}

type AsymmetricCipherSPI interface {

	// NewAsymmetricCipherFromPrivateKey creates a new AsymmetricCipher for decryption from a secret key
	NewAsymmetricCipherFromPrivateKey(priv PrivateKey) (AsymmetricCipher, error)

	// NewAsymmetricCipherFromPublicKey creates a new AsymmetricCipher for encryption from a public key
	NewAsymmetricCipherFromPublicKey(pub PublicKey) (AsymmetricCipher, error)

	// NewAsymmetricCipherFromPublicKey creates a new AsymmetricCipher for encryption from a serialized public key
	NewAsymmetricCipherFromSerializedPublicKey(pub []byte) (AsymmetricCipher, error)

	// NewAsymmetricCipherFromPublicKey creates a new AsymmetricCipher for encryption from a serialized public key
	NewAsymmetricCipherFromSerializedPrivateKey(priv []byte) (AsymmetricCipher, error)

	// NewPrivateKey creates a new private key rand and default parameters
	NewDefaultPrivateKey(rand io.Reader) (PrivateKey, error)

	// NewPrivateKey creates a new private key from (rand, params)
	NewPrivateKey(rand io.Reader, params interface{}) (PrivateKey, error)

	// NewPublicKey creates a new public key from (rand, params)
	NewPublicKey(rand io.Reader, params interface{}) (PublicKey, error)

	// SerializePrivateKey serializes a private key
	SerializePrivateKey(priv PrivateKey) ([]byte, error)

	// DeserializePrivateKey deserializes to a private key
	DeserializePrivateKey(bytes []byte) (PrivateKey, error)

	// SerializePrivateKey serializes a private key
	SerializePublicKey(pub PublicKey) ([]byte, error)

	// DeserializePrivateKey deserializes to a private key
	DeserializePublicKey(bytes []byte) (PublicKey, error)
}

type CipherParameters interface {
	Parameters
}

type ECDSASignature struct {
	R, S *big.Int
}

type KeyGenerator interface {
	// Init initializes this generated using the passed parameters
	Init(params KeyGeneratorParameters) error

	// GenerateKey generates a new private key
	GenerateKey() (PrivateKey, error)
}

type KeyGeneratorParameters interface {
	Parameters
}

type KeySerializer interface {
	// ToBytes converts a key to bytes
	ToBytes(key interface{}) ([]byte, error)

	// ToBytes converts bytes to a key
	FromBytes([]byte) (interface{}, error)
}

type Parameters interface {

	// GetRand returns the random generated associated to this parameters
	GetRand() io.Reader
}

type PrivateKey interface {
	AsymmetricCipherParameters

	// GetPublicKey returns the associated public key
	GetPublicKey() PublicKey
}

type PublicKey interface {
	AsymmetricCipherParameters
}

type SecretKey interface {
	CipherParameters
}

type StreamCipher interface {
	// Init initializes this cipher with the passed parameters
	Init(forEncryption bool, params CipherParameters) error

	// Process processes the byte array given in input
	Process(msg []byte) ([]byte, error)
}

type StreamCipherSPI interface {
	GenerateKey() (SecretKey, error)

	GenerateKeyAndSerialize() (SecretKey, []byte, error)

	NewSecretKey(rand io.Reader, params interface{}) (SecretKey, error)

	// NewStreamCipherForEncryptionFromKey creates a new StreamCipher for encryption from a secret key
	NewStreamCipherForEncryptionFromKey(secret SecretKey) (StreamCipher, error)

	// NewStreamCipherForEncryptionFromSerializedKey creates a new StreamCipher for encryption from a serialized key
	NewStreamCipherForEncryptionFromSerializedKey(secret []byte) (StreamCipher, error)

	// NewStreamCipherForDecryptionFromKey creates a new StreamCipher for decryption from a secret key
	NewStreamCipherForDecryptionFromKey(secret SecretKey) (StreamCipher, error)

	// NewStreamCipherForDecryptionFromKey creates a new StreamCipher for decryption from a serialized key
	NewStreamCipherForDecryptionFromSerializedKey(secret []byte) (StreamCipher, error)

	// SerializePrivateKey serializes a private key
	SerializeSecretKey(secret SecretKey) ([]byte, error)

	// DeserializePrivateKey deserializes to a private key
	DeserializeSecretKey(bytes []byte) (SecretKey, error)
}