import { Deserializer, Serializer } from "../../bcs/index.js";
import { Hex } from "../hex.js";
import { HexInput } from "../../types/index.js";
import { PublicKey, VerifySignatureAsyncArgs } from "./publicKey.js";
import { PrivateKey } from "./privateKey.js";
import { Signature } from "./signature.js";
import { AuthenticationKey } from "../authenticationKey.js";
/**
 * Represents a Secp256r1 ECDSA public key.
 *
 * @extends PublicKey
 * @property LENGTH - The length of the Secp256r1 public key in bytes.
 * @group Implementation
 * @category Serialization
 */
export declare class Secp256r1PublicKey extends PublicKey {
    static readonly LENGTH: number;
    static readonly COMPRESSED_LENGTH: number;
    private readonly key;
    readonly keyType: string;
    /**
     * Create a new PublicKey instance from a HexInput, which can be a string or Uint8Array.
     * This constructor validates the length of the provided public key data.
     *
     * @param hexInput - A HexInput (string or Uint8Array) representing the public key data.
     * @throws Error if the length of the public key data is not equal to Secp256r1PublicKey.LENGTH or COMPRESSED_LENGTH.
     * @group Implementation
     * @category Serialization
     */
    constructor(hexInput: HexInput);
    /**
     * Get the data as a Uint8Array representation.
     *
     * @returns Uint8Array representation of the data.
     * @group Implementation
     * @category Serialization
     */
    toUint8Array(): Uint8Array;
    /**
     * Get the public key as a hex string with the 0x prefix.
     *
     * @returns string representation of the public key.
     * @group Implementation
     * @category Serialization
     */
    toString(): string;
    /**
     * Converts the public key to BCS (Binary Canonical Serialization) bytes.
     * This function serializes the public key data into a byte array format suitable for transmission or storage.
     *
     * @returns Uint8Array representation of the serialized public key.
     * @group Implementation
     * @category Serialization
     */
    bcsToBytes(): Uint8Array<ArrayBufferLike>;
    /**
     * Verifies a signature against the exact bytes of `message`. This is the
     * unambiguous form — the input is interpreted as raw bytes regardless of
     * what they encode. Pair with {@link Secp256r1PrivateKey.signBytes}.
     *
     * The message is SHA3-256 hashed before verification (matching the
     * Aptos-side Secp256r1 signing convention), and the signature is required
     * to be in canonical low-S form for malleability resistance.
     *
     * @param args - The arguments for verification.
     * @param args.message - The exact bytes that were signed.
     * @param args.signature - The signature to verify.
     * @group Implementation
     * @category Serialization
     */
    verifyBytes(args: {
        message: Uint8Array;
        signature: Signature;
    }): boolean;
    /**
     * Verifies a signature against the UTF-8 encoding of `message`. The input
     * is always treated as text — there is no hex/text heuristic. Pair with
     * {@link Secp256r1PrivateKey.signText}.
     *
     * @param args - The arguments for verification.
     * @param args.message - The text that was signed.
     * @param args.signature - The signature to verify.
     * @group Implementation
     * @category Serialization
     */
    verifyText(args: {
        message: string;
        signature: Signature;
    }): boolean;
    /**
     * Verifies a Secp256r1 signature against the public key.
     *
     * @deprecated The polymorphic `message: HexInput` input is ambiguous — a
     * bare even-length string of hex characters (e.g., `"cafe"`) is verified
     * against the 2 bytes `[0xCA, 0xFE]`, not 4 UTF-8 text bytes. Use
     * {@link verifyBytes} for `Uint8Array` input or {@link verifyText} for
     * `string` input; both are unambiguous. See
     * {@link convertSigningMessage} for the full legacy rule.
     *
     * @param args - The arguments for verifying the signature.
     * @param args.message - The message that was signed.
     * @param args.signature - The signature to verify against the public key.
     * @group Implementation
     * @category Serialization
     */
    verifySignature(args: {
        message: HexInput;
        signature: Signature;
    }): boolean;
    /**
     * Note: Secp256r1Signatures can be verified synchronously.
     *
     * Verifies the provided signature against the given message.
     * This function helps ensure the integrity and authenticity of the message by confirming that the signature is valid.
     *
     * @param args - The arguments for signature verification.
     * @param args.message - The message that was signed.
     * @param args.signature - The signature to verify, which must be an instance of Secp256r1Signature.
     * @returns A boolean indicating whether the signature is valid for the given message.
     * @group Implementation
     * @category Serialization
     */
    verifySignatureAsync(args: VerifySignatureAsyncArgs): Promise<boolean>;
    /**
     * Serializes the data into a byte array using the provided serializer.
     * This function is essential for converting data into a format suitable for transmission or storage.
     *
     * @param serializer - The serializer instance used to convert the data.
     * @group Implementation
     * @category Serialization
     */
    serialize(serializer: Serializer): void;
    /**
     * Deserializes a Secp256r1PublicKey from the provided deserializer.
     * This function allows you to reconstruct a Secp256r1PublicKey object from its serialized byte representation.
     *
     * @param deserializer - The deserializer instance used to read the serialized data.
     * @group Implementation
     * @category Serialization
     */
    static deserialize(deserializer: Deserializer): Secp256r1PublicKey;
    /**
     * Loads a Secp256r1PublicKey from the provided deserializer.
     *
     * @param deserializer - The deserializer instance used to read the serialized data.
     * @group Implementation
     * @category Serialization
     */
    static load(deserializer: Deserializer): Secp256r1PublicKey;
    /**
     * Determines if the provided public key is a valid instance of a Secp256r1 public key.
     * This function checks for the presence of a "key" property and validates the length of the key data.
     *
     * @param publicKey - The public key to validate.
     * @returns A boolean indicating whether the public key is a valid Secp256r1 public key.
     * @group Implementation
     * @category Serialization
     */
    static isInstance(publicKey: PublicKey): publicKey is Secp256r1PublicKey;
    /**
     * Generates an authentication key from the public key using the Secp256r1 scheme.
     * This function is essential for creating a secure authentication key that can be used for further cryptographic operations.
     *
     * @returns {AuthenticationKey} The generated authentication key.
     * @group Implementation
     * @category Serialization
     */
    authKey(): AuthenticationKey;
}
/**
 * Represents a Secp256r1 ECDSA private key, providing functionality to create, sign messages,
 * derive public keys, and serialize/deserialize the key.
 * @group Implementation
 * @category Serialization
 */
export declare class Secp256r1PrivateKey extends PrivateKey {
    /**
     * Length of Secp256r1 ecdsa private key
     * @group Implementation
     * @category Serialization
     */
    static readonly LENGTH: number;
    /**
     * The private key bytes
     * @private
     * @group Implementation
     * @category Serialization
     */
    private readonly key;
    /**
     * Whether the key has been cleared from memory.
     * @private
     */
    private cleared;
    /**
     * Create a new PrivateKey instance from a Uint8Array or String.
     *
     * [Read about AIP-80](https://github.com/aptos-foundation/AIPs/blob/main/aips/aip-80.md)
     *
     * @param hexInput A HexInput (string or Uint8Array)
     * @param strict If true, private key must AIP-80 compliant.
     * @group Implementation
     * @category Serialization
     */
    constructor(hexInput: HexInput, strict?: boolean);
    /**
     * Get the private key in bytes (Uint8Array).
     *
     * @returns
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    toUint8Array(): Uint8Array;
    /**
     * Get the private key as a string representation.
     *
     * SECURITY: This produces an immutable JS string containing the key
     * material. Strings cannot be zeroed by `clear()` (see the `clear()`
     * JSDoc for the four classes of unreachable copies). Avoid calling this
     * method on long-lived `Secp256r1PrivateKey` instances in processes
     * where memory hygiene matters; prefer `toUint8Array()`, which returns
     * a clearable `Uint8Array`.
     *
     * @returns string representation of the private key
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    toString(): string;
    /**
     * Get the private key as a hex string with the 0x prefix.
     *
     * SECURITY: Same caveat as `toString()` — produces an immutable JS string
     * containing the key material; cannot be zeroed by `clear()`.
     *
     * @returns string representation of the private key.
     * @throws Error if the private key has been cleared from memory.
     */
    toHexString(): string;
    /**
     * Sign exactly the bytes of `message`. The input is interpreted as raw
     * bytes regardless of what they encode. Pair with
     * {@link Secp256r1PublicKey.verifyBytes}.
     *
     * The message is SHA3-256 hashed before signing (matching the Aptos-side
     * Secp256r1 signing convention).
     *
     * @param message - The exact bytes to sign.
     * @returns The generated signature for the provided bytes.
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    signBytes(message: Uint8Array): Secp256r1Signature;
    /**
     * Sign the UTF-8 encoding of `message`. The input is always treated as
     * text — there is no hex/text heuristic. Pair with
     * {@link Secp256r1PublicKey.verifyText}.
     *
     * @param message - The text to sign.
     * @returns The generated signature for the UTF-8 bytes of the provided text.
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    signText(message: string): Secp256r1Signature;
    /**
     * Sign the given message with the private key.
     * This function generates a cryptographic signature for the provided message.
     *
     * @deprecated The polymorphic `message: HexInput` input is ambiguous — a
     * bare even-length string of hex characters (e.g., `"cafe"`) is signed
     * as the 2 bytes `[0xCA, 0xFE]`, not 4 UTF-8 text bytes. Use
     * {@link signBytes} for `Uint8Array` input or {@link signText} for
     * `string` input; both are unambiguous. See
     * {@link convertSigningMessage} for the full legacy rule.
     *
     * @param message - A message in HexInput format to be signed.
     * @returns Signature - The generated signature for the provided message.
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    sign(message: HexInput): Secp256r1Signature;
    /**
     * Serializes the data into a byte array using the provided serializer.
     * This function is essential for converting data into a format suitable for transmission or storage.
     *
     * @param serializer - The serializer instance used to convert the data.
     * @group Implementation
     * @category Serialization
     */
    serialize(serializer: Serializer): void;
    /**
     * Deserializes a Secp256r1PrivateKey from the provided deserializer.
     * This function allows you to reconstruct a Secp256r1PrivateKey object from its serialized byte representation.
     *
     * @param deserializer - The deserializer instance used to read the serialized data.
     * @group Implementation
     * @category Serialization
     */
    static deserialize(deserializer: Deserializer): Secp256r1PrivateKey;
    /**
     * Generate a new random private key.
     *
     * @returns Secp256r1PrivateKey - A newly generated Secp256r1 private key.
     * @group Implementation
     * @category Serialization
     */
    static generate(): Secp256r1PrivateKey;
    /**
     * Derive the Secp256r1PublicKey from this private key.
     *
     * @returns Secp256r1PublicKey The derived public key.
     * @throws Error if the private key has been cleared from memory.
     * @group Implementation
     * @category Serialization
     */
    publicKey(): Secp256r1PublicKey;
    /**
     * Throws if the key has already been cleared.
     * @private
     */
    private ensureNotCleared;
    /**
     * Overwrites the underlying private-key byte buffer with random bytes and
     * then zeros. After calling this method the key can no longer sign or
     * derive a public key.
     *
     * SECURITY: This is a best-effort window-narrowing tool, NOT a true
     * zeroization guarantee. See `Ed25519PrivateKey.clear()` for the full
     * enumeration of JavaScript-level limits (immutable string copies, noble
     * `BigInt` intermediates, JIT register/stack residue, GC-relocated
     * copies). For Secp256r1 specifically, non-extractable `crypto.subtle`
     * P-256 keys are universally supported across modern runtimes and are
     * the architecturally-correct path for callers who need real memory
     * hygiene; consider that alternative for new code.
     *
     * @group Implementation
     * @category Serialization
     */
    clear(): void;
    /**
     * Returns whether `clear()` has been called.
     */
    isCleared(): boolean;
}
export declare class WebAuthnSignature extends Signature {
    signature: Hex;
    authenticatorData: Hex;
    clientDataJSON: Hex;
    constructor(signature: HexInput, authenticatorData: HexInput, clientDataJSON: HexInput);
    toUint8Array(): Uint8Array<ArrayBufferLike>;
    serialize(serializer: Serializer): void;
    bcsToBytes(): Uint8Array<ArrayBufferLike>;
    bcsToHex(): Hex;
    toStringWithoutPrefix(): string;
    static deserialize(deserializer: Deserializer): WebAuthnSignature;
}
/**
 * Represents a signature of a message signed using a Secp256r1 ECDSA private key.
 *
 * @group Implementation
 * @category Serialization
 */
export declare class Secp256r1Signature extends Signature {
    /**
     * Secp256r1 ecdsa signatures are 256-bit.
     * @group Implementation
     * @category Serialization
     */
    static readonly LENGTH = 64;
    /**
     * The signature bytes
     * @private
     * @group Implementation
     * @category Serialization
     */
    private readonly data;
    /**
     * Create a new Signature instance from a Uint8Array or String.
     *
     * @param hexInput A HexInput (string or Uint8Array)
     * @group Implementation
     * @category Serialization
     */
    constructor(hexInput: HexInput);
    /**
     * Get the signature in bytes (Uint8Array).
     *
     * @returns Uint8Array representation of the signature
     * @group Implementation
     * @category Serialization
     */
    toUint8Array(): Uint8Array;
    /**
     * Get the signature as a hex string with the 0x prefix.
     *
     * @returns string representation of the signature
     * @group Implementation
     * @category Serialization
     */
    toString(): string;
    /**
     * Serializes the data into a byte array using the provided serializer.
     * This function is essential for converting data into a format suitable for transmission or storage.
     *
     * @param serializer - The serializer instance used to convert the data.
     * @group Implementation
     * @category Serialization
     */
    serialize(serializer: Serializer): void;
    /**
     * Deserializes a Secp256r1Signature from the provided deserializer.
     * This function allows you to reconstruct a Secp256r1Signature object from its serialized byte representation.
     *
     * @param deserializer - The deserializer instance used to read the serialized data.
     * @group Implementation
     * @category Serialization
     */
    static deserialize(deserializer: Deserializer): Secp256r1Signature;
}
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