export declare const ALGORITHM_QUERY_PARAM = "X-Amz-Algorithm";
export declare const AMZ_DATE_QUERY_PARAM = "X-Amz-Date";
export declare const CREDENTIAL_QUERY_PARAM = "X-Amz-Credential";
export declare const EXPIRES_QUERY_PARAM = "X-Amz-Expires";
export declare const REGION_SET_PARAM = "X-Amz-Region-Set";
export declare const SIGNATURE_QUERY_PARAM = "X-Amz-Signature";
export declare const SIGNED_HEADERS_QUERY_PARAM = "X-Amz-SignedHeaders";
export declare const TOKEN_QUERY_PARAM = "X-Amz-Security-Token";
export declare const AUTH_HEADER = "authorization";
export declare const HOST_HEADER = "host";
export declare const AMZ_DATE_HEADER: string;
export declare const TOKEN_HEADER: string;
export declare const KEY_TYPE_IDENTIFIER = "aws4_request";
export declare const SHA256_ALGORITHM_IDENTIFIER = "AWS4-HMAC-SHA256";
export declare const SIGNATURE_IDENTIFIER = "AWS4";
export declare const EMPTY_HASH = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";
export declare const UNSIGNED_PAYLOAD = "UNSIGNED-PAYLOAD";