export declare const VERSION: string;
import { ASN1Object } from "typepki-asn1parse";
/**
 * generate ASN.1 DER/BER encoded hexadecimal string from JSON data
 * @param p - JSON object representing ASN.1 structure
 * @return hexadecimal string of ASN.1 DER/BER encoded hexadecimal string
 * @example
 * getASN1({ t: "int", v: "12ab" }) -> "020212ab"
 * getASN1({ t: "seq", v: [
 *   { t: "int", v: "01" },
 *   { t: "int", v: "02" }
 * ]}) -> "3006020101020102"
 */
export declare function getASN1(p: ASN1Object): string;
/**
 * get a hexadecimal string of ASN.1 tag by a tag name
 * @param tagName - name of ASN.1 tag
 * @return hexadecimal string of ASN.1 tag
 * @example
 * tagtohex("bool") -> "01"
 * tagtohex("utf8str") -> "0c"
 * tagtohex("a4") -> context specific constructed tag 4
 * tagtohex("80") -> context specific tag 0
 */
export declare function tagtohex(tagName: string): string;
/**
 * convert hexadecimal positive integer to ASN.1 integer value
 * @param h - hexadecimal string of positive integer
 * @return ASN.1 Integer DER encoded hexadecimal string
 * @example
 * pospad("01") -> "01"
 * pospad("ab") -> "00ab"
 * pospad("00000012") -> "12"
 * pospad("000000ab") -> "00ab"
 */
export declare function pospad(h: string): string;
/**
 * get ASN.1 TLV length octet(s) by TLV value octet length
 * @param n - TLV value octet length
 * @return hexadecimal string of TLV length octets
 * @example
 * getLength(3) -> "03"
 * getLength(128) -> "8180"
 */
export declare function getLength(n: number): string;
/**
 * zero padding for hexadecimal string
 * @param s - odd or even length hexadecimal string
 * @return even length zero padded hexadecimal string
 * @deprecated use hexpad in typepki-strconv
 * @example
 * hexpad("1") -> "01"
 * hexpad("ab3c") -> "ab3c"
 */
export declare function hexpad(s: string): string;
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