Актуализировал пример использования с Angular

examples/angular/src/app/crypto-pro/crypto-pro.component.html

@@ -1,34 +1,106 @@
-<select name="certificate"
+<form
+  #signatureForm="ngForm"
+  novalidate
+  (ngSubmit)="createSignature(thumbprint)">
+  <fieldset>
+    <legend>Создание подписи</legend>
+    <label for="message">Подписываемое сообщение: *</label>
+    <br>
+    <textarea
+      id="message"
+      name="message"
+      cols="80"
+      rows="5"
+      placeholder="Введите сообщение"
+      autofocus
+      required
+      [(ngModel)]="message">Привет мир!</textarea>
+    <br><br>
+
+    <label for="certificate">Сертификат: *</label>
+    <br>
+    <select
+      id="certificate"
+      name="certificate"
+      required
       [(ngModel)]="thumbprint">
       <option value="null" disabled>Не выбран</option>
-
-  <option *ngFor="let cert of certificateList"
-          [value]="cert.thumbprint">
-    {{cert.name}}
+      <option *ngFor="let cert of certificateList" [value]="cert.thumbprint">
+        {{cert.name + ' (действителен до: ' + cert.validTo + ')'}}
       </option>
     </select>
+    <pre>{{certificateListError}}</pre>
 
-<button type="button"
-        [disabled]="!thumbprint"
-        (click)="createSignature(thumbprint)">
-  Создать подпись
-</button>
-
-<button type="button"
-        [disabled]="!thumbprint"
+    <details
+      *ngIf="thumbprint"
       (click)="showCertInfo(thumbprint)">
-  Информация о сертификате
-</button>
-
+      <summary>Информация о сертификате</summary>
       <pre *ngIf="certInfo">{{certInfo | json}}</pre>
+      <pre *ngIf="!certInfo">Запрашивается...</pre>
+    </details>
+    <pre>{{certificateInfoError}}</pre>
 
+    <label>Тип подписи: *</label>
     <br>
+    <label>
+      <input
+        type="radio"
+        name="detachedSignature"
+        [value]="false"
+        [(ngModel)]="detachedSignature">Совмещенная</label>
+    <br>
+    <label>
+      <input
+        type="radio"
+        name="detachedSignature"
+        [value]="true"
+        [(ngModel)]="detachedSignature">Отделенная</label>
+    <br><br>
 
-<textarea name="signature"
+    <hr>
+    <button
+      type="submit"
+      [disabled]="!signatureForm.valid">Создать подпись</button>
+  </fieldset>
+</form>
+
+<fieldset>
+  <legend>Результат</legend>
+  <label for="hash">Хэш (ГОСТ Р 34.11-2012 256 бит):</label><br>
+  <textarea
+    id="hash"
+    cols="80"
+    rows="5"
+    [(ngModel)]="hash"
+    [placeholder]="hashStatus"
+  ></textarea>
+  <pre>{{hashError}}</pre>
+
+  <label for="signature">Подпись (PKCS7):</label><br>
+  <textarea
+    id="signature"
+    name="signature"
+    cols="80"
+    rows="30"
+    [placeholder]="signatureStatus"
     [(ngModel)]="signature"
-          cols="100"
-          rows="30"></textarea>
+  ></textarea>
+  <pre>{{signatureError}}</pre>
 
-<pre *ngIf="error">{{error}}</pre>
+  <p>
+    Для
+    <a href="https://www.gosuslugi.ru/pgu/eds/"
+       target="_blank"
+       rel="nofollow noopener noreferrer"
+       title="Перейти к проверке подписи">проверки</a>
+    нужно создать файл со сгенерированной подписью в кодировке UTF-8 с расширением *.sgn
+    <br>
+    для отделенной подписи (или *.sig для совмещенной).
+  </p>
+</fieldset>
 
+<fieldset>
+  <legend>Информация о системе</legend>
   <pre *ngIf="systemInfo">{{systemInfo | json}}</pre>
+  <pre>{{systemInfoError}}</pre>
+</fieldset>

examples/angular/src/app/crypto-pro/crypto-pro.component.ts

@@ -4,7 +4,9 @@ import {
   getUserCertificates,
   getSystemInfo,
   isValidSystemSetup,
-  createSignature,
+  createHash,
+  createDetachedSignature,
+  createAttachedSignature,
   SystemInfo,
   Certificate
 } from 'crypto-pro';
@@ -15,14 +17,23 @@ import {
   styleUrls: ['./crypto-pro.component.css']
 })
 export class CryptoProComponent implements OnInit {
+  public message = 'Привет мир!';
   public certificateList: Certificate[] = [];
+  public hash: string = null;
+  public hashStatus = 'Не вычислен';
+  public detachedSignature = true;
   public thumbprint: string = null;
-  public signature: string;
+  public signature: string = null;
+  public signatureStatus = 'Не создана';
   public systemInfo: SystemInfo & {
     isValidSystemSetup: boolean;
   };
-  public error: string;
-  public certInfo;
+  public certificateListError: string = null;
+  public certificateInfoError: string = null;
+  public hashError: string = null;
+  public signatureError: string = null;
+  public systemInfoError: string = null;
+  public certInfo = null;
 
   constructor() { }
 
@@ -32,18 +43,48 @@ export class CryptoProComponent implements OnInit {
   }
 
   public async createSignature(thumbprint) {
-    // Вычислинный hash по ГОСТ Р 34.11-94 для строки: "abc"
-    const hash = 'b285056dbf18d7392d7677369524dd14747459ed8143997e163b2986f92fd42c';
-    const hashBase64 = window.btoa(hash);
+    this.hash = null;
+    this.hashError = null;
+    this.signature = null;
+    this.signatureError = null;
+    this.hashStatus = 'Вычисляется...';
 
     try {
-      this.signature = await createSignature(thumbprint, hashBase64);
+      this.hash = await createHash(this.message);
     } catch (error) {
-      this.error = error.message;
+      this.hashError = error.message;
+
+      return;
     }
+
+    this.hashStatus = 'Не вычислен';
+    this.signatureStatus = 'Создается...';
+
+    if (this.detachedSignature) {
+      try {
+        this.signature = await createDetachedSignature(thumbprint, this.hash);
+      } catch (error) {
+        this.signatureError = error.message;
+      }
+
+      this.signatureStatus = 'Не создана';
+
+      return;
+    }
+
+    try {
+      this.signature = await createAttachedSignature(thumbprint, this.message);
+    } catch (error) {
+      this.signatureError = error.message;
+    }
+
+    this.signatureStatus = 'Не создана';
   }
 
   public async showCertInfo(thumbprint) {
+    this.certInfo = null;
+    this.certificateInfoError = null;
+
     try {
       const certificate = await getCertificate(thumbprint);
 
@@ -74,26 +115,30 @@ export class CryptoProComponent implements OnInit {
         ]),
       };
     } catch (error) {
-      this.error = error.message;
+      this.certificateInfoError = error.message;
     }
   }
 
   private async displayCertificates() {
+    this.certificateListError = null;
+
     try {
       this.certificateList = await getUserCertificates();
     } catch (error) {
-      this.error = error.message;
+      this.certificateListError = error.message;
     }
   }
 
   private async displaySystemInfo() {
+    this.systemInfoError = null;
+
     try {
       this.systemInfo = {
         ...await getSystemInfo(),
         isValidSystemSetup: await isValidSystemSetup()
       };
     } catch (error) {
-      this.error = error.message;
+      this.systemInfoError = error.message;
     }
   }
 }