tuweni / org.apache.tuweni.crypto.sodium / Signature

Signature

class Signature (source)

Public-key signatures.

In this system, a signer generates a key pair:

a secret key, that will be used to append a signature to any number of messages
a public key, that anybody can use to verify that the signature appended to a message was actually issued by the creator of the public key.

Verifiers need to already know and ultimately trust a public key before messages signed using it can be verified.

Warning: this is different from authenticated encryption. Appending a signature does not change the representation of the message itself.

This class depends upon the JNR-FFI library being available on the classpath, along with its dependencies. See https://github.com/jnr/jnr-ffi. JNR-FFI can be included using the gradle dependency 'com.github.jnr:jnr-ffi'.

Types

KeyPair	A Signature key pair. `class KeyPair`
PublicKey	A signing public key. `class PublicKey : Destroyable`
SecretKey	A Signature secret key. `class SecretKey : Destroyable`
Seed	A Signature key pair seed. `class Seed`

Functions

sign	Signs a message for a given key. `static fun sign(message: Bytes!, secretKey: SecretKey!): Bytes!` `static fun sign(message: ByteArray!, secretKey: SecretKey!): ByteArray!`
signDetached	Signs a message for a given key. `static fun signDetached(message: Bytes!, secretKey: SecretKey!): Bytes!` `static fun signDetached(message: Allocated!, secretKey: SecretKey!): Allocated!` `static fun signDetached(message: ByteArray!, secretKey: SecretKey!): ByteArray!`
verify	Verifies the signature of the signed message using the public key and returns the message. `static fun verify(signed: Bytes!, publicKey: PublicKey!): Bytes!` `static fun verify(signed: ByteArray!, publicKey: PublicKey!): ByteArray!`
verifyDetached	Decrypt a message using a given key. `static fun verifyDetached(message: Bytes!, signature: Bytes!, publicKey: PublicKey!): Boolean` `static fun verifyDetached(message: Allocated!, signature: Allocated!, publicKey: PublicKey!): Boolean` `static fun verifyDetached(message: ByteArray!, signature: ByteArray!, publicKey: PublicKey!): Boolean`