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using Hazel.Crypto;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Text;
namespace Hazel.UnitTests.Crypto
{
[TestClass]
public class AesGcmTest
{
[TestMethod]
public void Example1()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] associatedData = Utils.HexToBytes("");
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] plaintext = Utils.HexToBytes("");
byte[] ciphertextBytes = new byte[plaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertextBytes, nonce, plaintext, associatedData);
CollectionAssert.AreEqual(Utils.HexToBytes("3247184B 3C4F69A4 4DBCD228 87BBB418"), ciphertextBytes);
}
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = Utils.HexToBytes("3247184B 3C4F69A4 4DBCD228 87BBB418");
byte[] plaintext = new byte[ciphertext.Length - Aes128Gcm.CiphertextOverhead];
bool result = aes.Open(plaintext, nonce, ciphertext, associatedData);
Assert.IsTrue(result);
CollectionAssert.AreEqual(Utils.HexToBytes(""), plaintext);
}
}
[TestMethod]
public void Example2()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] associatedData = Utils.HexToBytes("");
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] plaintext = Utils.HexToBytes(@"
D9313225 F88406E5 A55909C5 AFF5269A
86A7A953 1534F7DA 2E4C303D 8A318A72
1C3C0C95 95680953 2FCF0E24 49A6B525
B16AEDF5 AA0DE657 BA637B39 1AAFD255
");
byte[] ciphertextBytes = new byte[plaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertextBytes, nonce, plaintext, associatedData);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
42831EC2 21777424 4B7221B7 84D0D49C
E3AA212F 2C02A4E0 35C17E23 29ACA12E
21D514B2 5466931C 7D8F6A5A AC84AA05
1BA30B39 6A0AAC97 3D58E091 473F5985
4D5C2AF3 27CD64A6 2CF35ABD 2BA6FAB4
"), ciphertextBytes);
}
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = Utils.HexToBytes(@"
42831EC2 21777424 4B7221B7 84D0D49C
E3AA212F 2C02A4E0 35C17E23 29ACA12E
21D514B2 5466931C 7D8F6A5A AC84AA05
1BA30B39 6A0AAC97 3D58E091 473F5985
4D5C2AF3 27CD64A6 2CF35ABD 2BA6FAB4
");
byte[] plaintext = new byte[ciphertext.Length - Aes128Gcm.CiphertextOverhead];
bool result = aes.Open(plaintext, nonce, ciphertext, associatedData);
Assert.IsTrue(result);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
D9313225 F88406E5 A55909C5 AFF5269A
86A7A953 1534F7DA 2E4C303D 8A318A72
1C3C0C95 95680953 2FCF0E24 49A6B525
B16AEDF5 AA0DE657 BA637B39 1AAFD255
"), plaintext);
}
}
[TestMethod]
public void Example3()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] associatedData = Utils.HexToBytes(@"
3AD77BB4 0D7A3660 A89ECAF3 2466EF97
F5D3D585 03B9699D E785895A 96FDBAAF
43B1CD7F 598ECE23 881B00E3 ED030688
7B0C785E 27E8AD3F 82232071 04725DD4
");
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] plaintext = Utils.HexToBytes("");
byte[] ciphertextBytes = new byte[plaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertextBytes, nonce, plaintext, associatedData);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
5F91D771 23EF5EB9 99791384 9B8DC1E9
"), ciphertextBytes);
}
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = Utils.HexToBytes(@"
5F91D771 23EF5EB9 99791384 9B8DC1E9
");
byte[] plaintext = new byte[ciphertext.Length - Aes128Gcm.CiphertextOverhead];
bool result = aes.Open(plaintext, nonce, ciphertext, associatedData);
Assert.IsTrue(result);
CollectionAssert.AreEqual(Utils.HexToBytes(""), plaintext);
}
}
[TestMethod]
public void Example4()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] associatedData = Utils.HexToBytes(@"
3AD77BB4 0D7A3660 A89ECAF3 2466EF97
F5D3D585 03B9699D E785895A 96FDBAAF
43B1CD7F 598ECE23 881B00E3 ED030688
7B0C785E 27E8AD3F 82232071 04725DD4
");
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] plaintext = Utils.HexToBytes(@"
D9313225 F88406E5 A55909C5 AFF5269A
86A7A953 1534F7DA 2E4C303D 8A318A72
1C3C0C95 95680953 2FCF0E24 49A6B525
B16AEDF5 AA0DE657 BA637B39 1AAFD255
");
byte[] ciphertextBytes = new byte[plaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertextBytes, nonce, plaintext, associatedData);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
42831EC2 21777424 4B7221B7 84D0D49C
E3AA212F 2C02A4E0 35C17E23 29ACA12E
21D514B2 5466931C 7D8F6A5A AC84AA05
1BA30B39 6A0AAC97 3D58E091 473F5985
64C02329 04AF398A 5B67C10B 53A5024D
"), ciphertextBytes);
}
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = Utils.HexToBytes(@"
42831EC2 21777424 4B7221B7 84D0D49C
E3AA212F 2C02A4E0 35C17E23 29ACA12E
21D514B2 5466931C 7D8F6A5A AC84AA05
1BA30B39 6A0AAC97 3D58E091 473F5985
64C02329 04AF398A 5B67C10B 53A5024D
");
byte[] plaintext = new byte[ciphertext.Length - Aes128Gcm.CiphertextOverhead];
bool result = aes.Open(plaintext, nonce, ciphertext, associatedData);
Assert.IsTrue(result);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
D9313225 F88406E5 A55909C5 AFF5269A
86A7A953 1534F7DA 2E4C303D 8A318A72
1C3C0C95 95680953 2FCF0E24 49A6B525
B16AEDF5 AA0DE657 BA637B39 1AAFD255
"), plaintext);
}
}
[TestMethod]
public void TestReuseToDecrypt()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] associatedData = Utils.HexToBytes(@"
3AD77BB4 0D7A3660 A89ECAF3 2466EF97
F5D3D585 03B9699D E785895A 96FDBAAF
43B1CD7F 598ECE23 881B00E3 ED030688
7B0C785E 27E8AD3F 82232071 04725DD4
");
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] plaintext = Utils.HexToBytes("");
byte[] ciphertextBytes = new byte[plaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertextBytes, nonce, plaintext, associatedData);
CollectionAssert.AreEqual(Utils.HexToBytes(@"
5F91D771 23EF5EB9 99791384 9B8DC1E9
"), ciphertextBytes);
byte[] ciphertext = Utils.HexToBytes(@"
5F91D771 23EF5EB9 99791384 9B8DC1E9
");
plaintext = new byte[ciphertext.Length - Aes128Gcm.CiphertextOverhead];
bool result = aes.Open(plaintext, nonce, ciphertext, associatedData);
Assert.IsTrue(result);
CollectionAssert.AreEqual(Utils.HexToBytes(""), plaintext);
}
}
[TestMethod]
public void TestPlaintextSmallerThanBlock()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] originalPlaintext = Encoding.UTF8.GetBytes("Lorem ipsum");
Assert.IsTrue(originalPlaintext.Length < 16);
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = new byte[originalPlaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertext, nonce, originalPlaintext, ByteSpan.Empty);
byte[] plaintext = new byte[originalPlaintext.Length];
bool result = aes.Open(plaintext, nonce, ciphertext, ByteSpan.Empty);
Assert.IsTrue(result);
CollectionAssert.AreEqual(originalPlaintext, plaintext);
}
}
[TestMethod]
public void TestPlaintextLargerThanBlockMultiple()
{
byte[] key = Utils.HexToBytes("FEFFE992 8665731C 6D6A8F94 67308308");
byte[] nonce = Utils.HexToBytes("CAFEBABE FACEDBAD DECAF888");
byte[] originalPlaintext = Encoding.UTF8.GetBytes("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.");
Assert.IsTrue(originalPlaintext.Length > 16);
Assert.IsTrue((originalPlaintext.Length % 16) != 0);
using (Aes128Gcm aes = new Aes128Gcm(key))
{
byte[] ciphertext = new byte[originalPlaintext.Length + Aes128Gcm.CiphertextOverhead];
aes.Seal(ciphertext, nonce, originalPlaintext, ByteSpan.Empty);
byte[] plaintext = new byte[originalPlaintext.Length];
bool result = aes.Open(plaintext, nonce, ciphertext, ByteSpan.Empty);
Assert.IsTrue(result);
CollectionAssert.AreEqual(originalPlaintext, plaintext);
}
}
}
}
|
