export declare class Ed25519Keypair {
    static fromLibsodiumPrivkey(libsodiumPrivkey: Uint8Array): Ed25519Keypair;
    readonly privkey: Uint8Array;
    readonly pubkey: Uint8Array;
    constructor(privkey: Uint8Array, pubkey: Uint8Array);
    toLibsodiumPrivkey(): Uint8Array<ArrayBuffer>;
}
export declare class Ed25519 {
    /**
     * Generates a keypair deterministically from a given 32 bytes seed.
     *
     * This seed equals the Ed25519 private key.
     * For implementation details see crypto_sign_seed_keypair in
     * https://download.libsodium.org/doc/public-key_cryptography/public-key_signatures.html
     * and diagram on https://blog.mozilla.org/warner/2011/11/29/ed25519-keys/
     */
    static makeKeypair(privKey: Uint8Array): Promise<Ed25519Keypair>;
    static createSignature(message: Uint8Array, keyPair: Ed25519Keypair): Promise<Uint8Array>;
    static verifySignature(signature: Uint8Array, message: Uint8Array, pubkey: Uint8Array): Promise<boolean>;
}