Class EncryptedData

The following example demonstrates how to create and encrypt CMS Encrypted Data

const cmsEncrypted = new pkijs.EncryptedData();

await cmsEncrypted.encrypt({
  contentEncryptionAlgorithm: {
    name: "AES-GCM",
    length: 256,
  },
  hmacHashAlgorithm: "SHA-256",
  iterationCount: 1000,
  password: password,
  contentToEncrypt: dataToEncrypt,
});

// Add Encrypted Data into CMS Content Info
const cmsContent = new pkijs.ContentInfo();
cmsContent.contentType = pkijs.ContentInfo.ENCRYPTED_DATA;
cmsContent.content = cmsEncrypted.toSchema();

const cmsContentRaw = cmsContent.toSchema().toBER();

The following example demonstrates how to decrypt CMS Encrypted Data

// Parse CMS Content Info
const cmsContent = pkijs.ContentInfo.fromBER(cmsContentRaw);
if (cmsContent.contentType !== pkijs.ContentInfo.ENCRYPTED_DATA) {
  throw new Error("CMS is not Encrypted Data");
}
// Parse CMS Encrypted Data
const cmsEncrypted = new pkijs.EncryptedData({ schema: cmsContent.content });

// Decrypt data
const decryptedData = await cmsEncrypted.decrypt({
  password: password,
});