import { SignatureFormatFunction } from '@interchainjs/auth';
import { BaseCryptoBytes } from '@interchainjs/utils';
/**
 * Utility functions that implement the BytesUtils functionality mentioned in requirements
 * Defined first to avoid forward reference issues
 */
export declare const BytesUtils: {
    /**
     * Split signature into components
     */
    splitSignature: (signature: Uint8Array) => {
        r: Uint8Array;
        s: Uint8Array;
        recovery?: number;
    };
    /**
     * Combine signature components
     */
    combineSignature: (r: Uint8Array, s: Uint8Array, recovery?: number) => Uint8Array;
    /**
     * Convert to Uint8Array (arrayify equivalent)
     */
    arrayify: (data: Uint8Array) => Uint8Array;
    /**
     * Concatenate byte arrays
     */
    concat: (arrays: Uint8Array[]) => Uint8Array;
};
/**
 * Injective signature format function type
 * Takes raw signature bytes and returns processed signature bytes
 */
export type InjectiveSignatureFormatFunction = (signature: Uint8Array) => Uint8Array;
/**
 * Preset Injective signature format functions mapping
 * These implement the InjectiveSignatureFormat enum (COMPACT, FULL, RAW) mentioned in requirements
 */
export declare const PRESET_INJECTIVE_SIGNATURE_FORMATS: Record<string, InjectiveSignatureFormatFunction>;
/**
 * Resolve Injective signature format function
 * @param formatFn - Format function or string identifier
 * @param defaultFn - Default format to use if formatFn is not provided
 * @returns Resolved signature format function
 */
export declare function resolveInjectiveSignatureFormat(formatFn?: InjectiveSignatureFormatFunction | string, defaultFn?: InjectiveSignatureFormatFunction | string): InjectiveSignatureFormatFunction | undefined;
/**
 * Utility class for processing Injective signatures
 * Implements the configurable signature post-processing logic
 * that was previously hardcoded in EthSecp256k1Signature.toCompact()
 */
export declare class InjectiveSignatureProcessor {
    /**
     * Process a signature according to the specified format
     * @param signature - Raw signature bytes (typically 65 bytes with recovery)
     * @param format - Desired signature format (string or function)
     * @returns Processed signature bytes
     */
    static processSignature(signature: Uint8Array, format?: SignatureFormatFunction | string): Uint8Array;
    /**
     * Convert signature to BaseCryptoBytes for use in workflows
     * @param signature - Signature bytes
     * @param format - Desired signature format
     * @returns BaseCryptoBytes instance
     */
    static toBaseCryptoBytes(signature: Uint8Array, format?: SignatureFormatFunction | string): BaseCryptoBytes;
}
/**
 * Legacy compatibility class that implements the EthSecp256k1Signature interface
 * This provides backward compatibility for code that expects the old toCompact() method
 */
export declare class EthSecp256k1Signature {
    readonly signature: Uint8Array;
    constructor(signature: Uint8Array);
    /**
     * Convert signature to compact format
     * This method maintains backward compatibility with the original implementation
     * @returns Compact signature as BaseCryptoBytes (Key-like object)
     */
    toCompact(): BaseCryptoBytes;
    /**
     * Convert signature to full format
     * @returns Full signature as BaseCryptoBytes
     */
    toFull(): BaseCryptoBytes;
    /**
     * Get raw signature
     * @returns Raw signature as BaseCryptoBytes
     */
    toRaw(): BaseCryptoBytes;
    /**
     * Process signature with configurable format
     * @param format - Desired signature format
     * @returns Processed signature as BaseCryptoBytes
     */
    process(format: SignatureFormatFunction | string): BaseCryptoBytes;
}
/**
 * Type alias for backward compatibility
 * Represents the Key class mentioned in the original requirements
 */
export type Key = BaseCryptoBytes;