/// <reference types="node" />
import { KmsOperationContext, KmsProviderConfig } from './types';
export declare function createKmsCryptoProvider(config?: KmsProviderConfig): Promise<{
    readonly reconfigure: (newConfig: KmsProviderConfig) => Promise<void>;
    readonly decrypt: (context: KmsOperationContext, cipherText: string) => Promise<Buffer | undefined>;
    readonly encrypt: (keyArn: string, context: KmsOperationContext, plaintext: string | Buffer) => Promise<string>;
    readonly generateDataKey: (keyArn: string, context: KmsOperationContext) => Promise<{
        Plaintext: Buffer;
        CiphertextBlob: string;
    }>;
    readonly decryptText: (context: KmsOperationContext, cipherText: string) => Promise<string | undefined>;
    readonly decryptorInContext: (context: KmsOperationContext, returnOriginalOnFailure: boolean) => (cipher: string) => Promise<Buffer | undefined>;
    readonly textDecryptorInContext: (context: KmsOperationContext, returnOriginalOnFailure: boolean) => (cipher: string) => Promise<string | undefined>;
}>;
export declare type KmsCrypto = Awaited<ReturnType<typeof createKmsCryptoProvider>>;