import { DomainModule } from 'bf-types';
import { AsymmetricKeyType } from './Encryption.Types';
/**
 * Decode a secret value
 *
 * @param encodedSecretValue A secret value which has been encoded
 * @param privateKey A PEM formatted RSA private key
 */
export declare function decodeSecretValue(encodedSecretValue: string, privateKey?: string): string;
/**
 * Encrypt data using an RSA public key
 *
 * @param publicKey A PEM formatted RSA public key
 * @param unencryptedData Data that will be encrypted
 */
export declare function rsaEncryptData(publicKey: string, unencryptedData: string): string;
/**
 * Decrypt data using an RSA private key
 *
 * @param privateKey A PEM formatted RSA private key
 * @param encryptedData Data that will be decrypted
 */
export declare function rsaDecryptData(privateKey: string, encryptedData: string): string;
/**
 * Get an RSA private key used to decrypt secret values associated with a particular block-5 module
 *
 * @param moduleName The name of a block-5 module
 */
export declare function getEnvironmentSecretPrivateKey(moduleName: DomainModule): string;
/**
 * Get an RSA public key used to encrypt secret values associated with a particular block-5 module
 *
 * @param moduleName The name of a block-5 module
 */
export declare function getEnvironmentSecretPublicKey(moduleName: DomainModule): string;
/**
 * Convert an RSA key string into PEM format
 *
 * @param keyString An RSA key in the form of a single line string
 * @param keyType The RSA key type
 */
export declare function formatRsaKeyString(keyString: string, keyType: AsymmetricKeyType): string;
/**
 * Remove any characters that would be in a PEM formatted RSA key
 *
 * @param keyString An RSA key string
 */
export declare function removePemFormatting(keyString: string): string;
/**
 * Create a hash for an encryption key
 *
 * @param keyString An RSA key string
 */
export declare function encryptionKeyHash(keyString: string): string;