@syncfusion/ej2-pdf/src/pdf/core/security/digital-signature/pdf-key-identifier.js

Feature-rich JavaScript PDF library with built-in support for loading and manipulating PDF document.

import { _Sha1 } from '../encryptors/secureHash-algorithm1';
/**
 * Helper that computes and stores a subject key identifier (SHA-1 of the public key).
 *
 * @private
 */
var _PdfSubjectKeyIdentifier = /** @class */ (function () {
    function _PdfSubjectKeyIdentifier(info) {
        this._bytes = this._generateKeyID(info);
    }
    /**
     * Compute the key identifier as SHA-1 over the subject public key bytes.
     *
     * @private
     * @param {_PdfPublicKeyInformation} info - Subject public key information.
     * @returns {Uint8Array} SHA-1 digest bytes representing the key identifier.
     */
    _PdfSubjectKeyIdentifier.prototype._generateKeyID = function (info) {
        var sha1 = new _Sha1();
        var publicKeyBytes = info._publicKey._data;
        return sha1._hash(publicKeyBytes, 0, publicKeyBytes.length);
    };
    return _PdfSubjectKeyIdentifier;
}());
export { _PdfSubjectKeyIdentifier };