import { scriptTagsContents, styleTagsContents } from './html-parsers.js';
import type { SrcKey } from './schemas/sources.js';
export type HashAlgorithmMapConfig = {
    [key: string]: string[] | boolean | undefined;
};
export type HashAlgorithmMap = {
    [key in SrcKey]: string | undefined;
};
/**
 * Detects the hash algorithm to use for all CSP source values in a CSP directive.
 * Different directives might use different hash algorithms.
 */
export declare const hashAlgorithmMap: (config: HashAlgorithmMapConfig) => HashAlgorithmMap;
export declare enum Algorithm {
    sha256 = "sha256",
    sha384 = "sha384",
    sha512 = "sha512"
}
interface Config {
    algorithm: Algorithm;
    patterns: string[];
}
interface UniqueHashesConfig extends Config {
    parser: typeof scriptTagsContents | typeof styleTagsContents;
}
/**
 * @internal
 */
export declare const uniqueHashes: ({ algorithm, parser, patterns }: UniqueHashesConfig) => Promise<string[]>;
/**
 * @internal
 */
export declare const hashesScriptSrcAttr: ({ algorithm, patterns }: Config) => Promise<string[]>;
/**
 * @internal
 */
export declare const hashesScriptSrcElem: ({ algorithm, patterns }: Config) => Promise<string[]>;
/**
 * @internal
 */
export declare const hashesStyleSrcAttr: ({ algorithm, patterns }: Config) => Promise<string[]>;
/**
 * @internal
 */
export declare const hashesStyleSrcElem: ({ algorithm, patterns }: Config) => Promise<string[]>;
/**
 * @internal
 */
export declare const noHashSpecifiedMessage: (directive: string) => string;
export {};
//# sourceMappingURL=hash.d.ts.map