private void tryKekAlgorithm(KeyParameter kek, DerObjectIdentifier algOid)
{
byte[] data = Encoding.ASCII.GetBytes("Eric H. Echidna");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
byte[] kekId = new byte[] { 1, 2, 3, 4, 5 };
// FIXME Will this work for macs?
string keyAlgorithm = ParameterUtilities.GetCanonicalAlgorithmName(algOid.Id);
adGen.AddKekRecipient(keyAlgorithm, kek, kekId);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
CmsAuthenticatedDataGenerator.DesEde3Cbc);
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(CmsAuthenticatedDataGenerator.DesEde3Cbc, ad.MacAlgOid);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (RecipientInformation recipient in c)
{
Assert.AreEqual(recipient.KeyEncryptionAlgOid, algOid.Id);
byte[] recData = recipient.GetContent(kek);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
private void TryKekAlgorithm(
KeyParameter kek,
DerObjectIdentifier algOid)
{
byte[] data = Encoding.ASCII.GetBytes("WallaWallaWashington");
CmsEnvelopedDataGenerator edGen = new CmsEnvelopedDataGenerator();
byte[] kekId = new byte[] { 1, 2, 3, 4, 5 };
string keyAlgorithm = ParameterUtilities.GetCanonicalAlgorithmName(algOid.Id);
edGen.AddKekRecipient(keyAlgorithm, kek, kekId);
CmsEnvelopedData ed = edGen.Generate(
new CmsProcessableByteArray(data),
CmsEnvelopedDataGenerator.DesEde3Cbc);
RecipientInformationStore recipients = ed.GetRecipientInfos();
Assert.AreEqual(ed.EncryptionAlgOid, CmsEnvelopedDataGenerator.DesEde3Cbc);
ArrayList c = new ArrayList(recipients.GetRecipients());
Assert.IsTrue(c.Count > 0);
foreach (RecipientInformation recipient in c)
{
Assert.AreEqual(algOid.Id, recipient.KeyEncryptionAlgOid);
byte[] recData = recipient.GetContent(kek);
Assert.IsTrue(Arrays.AreEqual(data, recData));
}
}