如何解码 x509 证书以获得到期日期？

Question

我正在开发一个项目，通过 angular/typescript 从 azure 集成帐户获取和显示证书信息。部分要求是向用户显示解码的 public 证书以查找有用的信息，即到期日期。我一直在尝试使用 atob() 函数解码证书，但它没有正确解码证书。 angular/typscript 有没有简单的方法？

这是一个证书示例：

这里有一些代码供参考：

服务

@Injectable()
export class integrationAccountService
{
  constructor(private httpclient: HttpClient, private api: ApiService) { }

  getcertificates(): Observable<Certificate> {
    const httpOptions : Object = {
      headers: new HttpHeaders({
        'Authorization': 'Bearer Token'
      }),
      responseType: 'json'
    };
    return this.httpclient.get<Certificate>(URL, httpOptions);
  }
}

Table 组件

export class CertificateTableComponent {

  dataSource: MatTableDataSource<any>;
  //certificates: ValueEntity[] = [];
  data: CertificateRow[] = [];
  columns: string[] = ['name', 'id', 'type', 'publicCertificate'];

  @ViewChild(MatSort, { static: true }) sort: MatSort;
  @ViewChild(MatPaginator, { static:true }) paginator: MatPaginator;

  constructor(private _integrationAccountService: integrationAccountService, public dialog: MatDialog) {
  }

  ngOnInit() {

    this._integrationAccountService.getcertificates().subscribe(response => {
      //this.certificates = response.data;
      this.data = [];
      if (response.value) {
          for (let entity of response.value) {
              let row: CertificateRow = {
                  name: entity.name,
                  id: entity.id,
                  type: entity.type,
                  publicCertificate: entity.properties?.publicCertificate
              };
              this.data.push(row);
              console.log(atob(row.publicCertificate));
          }
      }

      this.dataSource = new MatTableDataSource(this.data);
      this.dataSource.sort = this.sort;
      this.dataSource.paginator = this.paginator;

    })

  }
  applyFilter(event) {
    const filterValue = (event.target as HTMLInputElement).value;

    this.dataSource.filter = filterValue.trim().toLowerCase()
  }

  openDialog(publicCertificate) {
    let dialogRef = this.dialog.open(CertificateViewComponent, {
      data: {
        dialogCert: publicCertificate
      }

    });
  }
}

有了这个console.log(atob(row.certificate));不产生解码的证书，它只显示从 api 返回的证书。我在这里遗漏了什么或其他解码证书的方法吗？

提前致谢！

Answer 1

我找到了使用 node-forge 包的解决方案。这是我在 table 组件中实现的代码：

import * as forge from 'node-forge';

declare var require: any
const pki = require('node-forge').pki;

const certPem = atob(entity.properties?.publicCertificate)
const cert = pki.certificateFromPem(certPem)

console.log(cert);

如何解码 x509 证书以获得到期日期？

How to decode x509 certficate to get expiry date?

ssl

x509

typescript

angular