import type { Bytes } from './types.js';
interface CryptoEncoding {
    concatBytes(...parts: Uint8Array[]): Uint8Array;
    toBytes(value: Uint8Array | string): Uint8Array;
    utf8ToBytes(value: string): Uint8Array;
}
export declare function createCrypto(encoding: CryptoEncoding): {
    deriveAesMaterial(sharedSecret: Bytes, challenge: string, kemId: string): {
        key: Bytes;
        nonce: Bytes;
    };
    encryptAesGcm(key: Bytes, nonce: Bytes, plaintext: Bytes, aad?: Bytes | string): Bytes;
    decryptAesGcm(key: Bytes, nonce: Bytes, data: Bytes, aad?: Bytes | string): Bytes;
    jsonToBytes(value: unknown): Bytes;
    makeFieldAad(keys: readonly PropertyKey[]): Bytes;
};
export {};
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