public async Task Should_Decrypt_Front_Side_File()
{
PassportData passportData = GetPassportData();
IDecrypter decrypter = new Decrypter();
Credentials credentials =
decrypter.DecryptCredentials(passportData.Credentials, EncryptionKey.RsaPrivateKey);
byte[] encryptedContent = await System.IO.File.ReadAllBytesAsync("Files/driver_license-front_side.jpg.enc");
byte[] content = decrypter.DecryptFile(
encryptedContent,
credentials.SecureData.DriverLicense.FrontSide
);
Assert.NotEmpty(content);
await System.IO.File.WriteAllBytesAsync("Files/driver_license-front_side.jpg", content);
using (System.IO.MemoryStream
encryptedFileStream = new System.IO.MemoryStream(encryptedContent),
decryptedFileStream = new System.IO.MemoryStream()
)
{
await decrypter.DecryptFileAsync(
encryptedFileStream,
credentials.SecureData.DriverLicense.FrontSide,
decryptedFileStream
);
Assert.Equal(content, decryptedFileStream.ToArray());
}
}
public async Task Should_Decrypt_Identity_Card_Element_Selfie()
{
Update update = _classFixture.Entity;
PassportData passportData = update.Message.PassportData;
RSA key = EncryptionKey.ReadAsRsa();
EncryptedPassportElement idCardEl = Assert.Single(passportData.Data, el => el.Type == "identity_card");
IDecrypter decrypter = new Decrypter();
Credentials credentials = decrypter.DecryptCredentials(passportData.Credentials, key);
byte[] encryptedContent;
using (System.IO.MemoryStream stream = new System.IO.MemoryStream(idCardEl.Selfie.FileSize))
{
await BotClient.GetInfoAndDownloadFileAsync(
idCardEl.Selfie.FileId,
stream
);
encryptedContent = stream.ToArray();
}
byte[] content = decrypter.DecryptFile(
encryptedContent,
credentials.SecureData.IdentityCard.Selfie
);
Assert.NotEmpty(content);
}
public void Should_Throw_If_Null_Secret()
{
IDecrypter decrypter = new Decrypter();
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(new byte[0], new FileCredentials())
);
Assert.Matches(@"^Value cannot be null\.\s+Parameter name: Secret$", exception.Message);
Assert.IsType <ArgumentNullException>(exception);
}
public void Should_Throw_If_Null_EncryptedContent()
{
IDecrypter decrypter = new Decrypter();
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(null, null)
);
Assert.Matches(@"^Value cannot be null\.\s+Parameter name: encryptedContent$", exception.Message);
Assert.IsType <ArgumentNullException>(exception);
}
public void Should_Throw_If_Invalid_Hash(string fileHash)
{
FileCredentials fileCredentials = new FileCredentials {
Secret = "", FileHash = fileHash
};
IDecrypter decrypter = new Decrypter();
Assert.ThrowsAny <FormatException>(() =>
decrypter.DecryptFile(new byte[16], fileCredentials)
);
}
public void Should_Throw_If_Invalid_Secret(string secret)
{
FileCredentials fileCredentials = new FileCredentials {
Secret = secret, FileHash = ""
};
IDecrypter decrypter = new Decrypter();
Assert.Throws <FormatException>(() =>
decrypter.DecryptFile(new byte[16], fileCredentials)
);
}
public void Should_Throw_If_Invalid_Hash_Length(string fileHash)
{
FileCredentials fileCredentials = new FileCredentials {
Secret = "", FileHash = fileHash
};
IDecrypter decrypter = new Decrypter();
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(new byte[16], fileCredentials)
);
Assert.Matches(@"^Hash length is not 32: \d+\.$", exception.Message);
Assert.IsType <PassportDataDecryptionException>(exception);
}
public void Should_Throw_If_Invalid_Data_Bytes_Length()
{
IDecrypter decrypter = new Decrypter();
FileCredentials fileCredentials = new FileCredentials {
Secret = "", FileHash = ""
};
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(new byte[16 + 1], fileCredentials)
);
Assert.Equal("Data length is not divisible by 16: 17.", exception.Message);
Assert.IsType <PassportDataDecryptionException>(exception);
}
public void Should_Throw_If_Empty_Data_Bytes_Length()
{
IDecrypter decrypter = new Decrypter();
FileCredentials fileCredentials = new FileCredentials {
Secret = "", FileHash = ""
};
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(new byte[0], fileCredentials)
);
Assert.Matches(@"^Data array is empty\.\s+Parameter name: encryptedContent$", exception.Message);
Assert.IsType <ArgumentException>(exception);
}
public async Task Should_Decrypt_Translation_File()
{
Update update = _classFixture.Entity;
PassportData passportData = update.Message.PassportData;
RSA key = EncryptionKey.ReadAsRsa();
EncryptedPassportElement element = passportData.Data.Single();
IDecrypter decrypter = new Decrypter();
Credentials credentials = decrypter.DecryptCredentials(passportData.Credentials, key);
for (int i = 0; i < element.Translation.Length; i++)
{
PassportFile passportFile = element.Translation[i];
FileCredentials fileCredentials = credentials.SecureData.DriverLicense.Translation[i];
byte[] encryptedContent;
{
File encryptedFileInfo = await BotClient.GetFileAsync(passportFile.FileId);
Assert.NotEmpty(encryptedFileInfo.FilePath);
Assert.NotEmpty(encryptedFileInfo.FileId);
Assert.InRange(encryptedFileInfo.FileSize, 1_000, 50_000_000);
using (System.IO.MemoryStream stream = new System.IO.MemoryStream(encryptedFileInfo.FileSize))
{
await BotClient.DownloadFileAsync(encryptedFileInfo.FilePath, stream);
encryptedContent = stream.ToArray();
}
}
byte[] translationContent = decrypter.DecryptFile(
encryptedContent,
fileCredentials
);
Assert.NotEmpty(translationContent);
string decryptedFilePath = System.IO.Path.GetTempFileName();
await System.IO.File.WriteAllBytesAsync(decryptedFilePath, translationContent);
_output.WriteLine("Translation JPEG file is written to \"{0}\".", decryptedFilePath);
}
}
public async Task Should_Decrypt_Utility_Bill_Element_Translation()
{
PassportData passportData = GetPassportData();
EncryptedPassportElement billElement = Assert.Single(passportData.Data, el => el.Type == "utility_bill");
Assert.NotNull(billElement.Translation);
PassportFile translationFile = Assert.Single(billElement.Translation);
Assert.Equal("DgADAQADOwADGV9BRP4b7RLGAtUKAg", translationFile.FileId);
Assert.InRange(translationFile.FileDate, new DateTime(2018, 8, 30), new DateTime(2018, 8, 31));
Assert.Equal(0, translationFile.FileSize);
IDecrypter decrypter = new Decrypter();
Credentials credentials =
decrypter.DecryptCredentials(passportData.Credentials, EncryptionKey.RsaPrivateKey);
FileCredentials translationFileCredentials = Assert.Single(credentials.SecureData.UtilityBill.Translation);
byte[] encryptedContent = await System.IO.File.ReadAllBytesAsync("Files/utility_bill-translation.jpg.enc");
byte[] content = decrypter.DecryptFile(
encryptedContent,
translationFileCredentials
);
Assert.NotEmpty(content);
await System.IO.File.WriteAllBytesAsync("Files/utility_bill-translation.jpg", content);
using (System.IO.MemoryStream
encryptedFileStream = new System.IO.MemoryStream(encryptedContent),
decryptedFileStream = new System.IO.MemoryStream()
)
{
await decrypter.DecryptFileAsync(
encryptedFileStream,
translationFileCredentials,
decryptedFileStream
);
Assert.Equal(content, decryptedFileStream.ToArray());
}
}
public async Task Should_Decrypt_Selfie_File()
{
Update update = _classFixture.Entity;
PassportData passportData = update.Message.PassportData;
RSA key = EncryptionKey.ReadAsRsa();
EncryptedPassportElement element = passportData.Data.Single();
IDecrypter decrypter = new Decrypter();
Credentials credentials = decrypter.DecryptCredentials(passportData.Credentials, key);
byte[] encryptedContent;
{
File encryptedFileInfo = await BotClient.GetFileAsync(element.Selfie.FileId);
Assert.NotEmpty(encryptedFileInfo.FilePath);
Assert.NotEmpty(encryptedFileInfo.FileId);
Assert.InRange(encryptedFileInfo.FileSize, 1_000, 50_000_000);
using (System.IO.MemoryStream stream = new System.IO.MemoryStream(encryptedFileInfo.FileSize))
{
await BotClient.DownloadFileAsync(encryptedFileInfo.FilePath, stream);
encryptedContent = stream.ToArray();
}
}
byte[] selfieContent = decrypter.DecryptFile(
encryptedContent,
credentials.SecureData.DriverLicense.Selfie
);
Assert.NotEmpty(selfieContent);
using (System.IO.Stream stream = new System.IO.MemoryStream(selfieContent))
{
await BotClient.SendPhotoAsync(
_fixture.SupergroupChat,
stream,
"selfie with driver license",
replyToMessageId : update.Message.MessageId
);
}
}
public async Task Should_Decrypt_From_Bytes()
{
FileCredentials fileCredentials = new FileCredentials
{
FileHash = "v3q47iscI6TS94CMo7HGQUOxw28LIf82NJBkImzP57c=",
Secret = "vF7nut7clg/H/pEaTJigo4mQJ0s8B+HGCWKTWtOTIdo=",
};
IDecrypter decrypter = new Decrypter();
byte[] encContent = await File.ReadAllBytesAsync("Files/bytes_dec1.driver_license-selfie.jpg.enc");
byte[] content = decrypter.DecryptFile(
encContent,
fileCredentials
);
Assert.NotEmpty(content);
Assert.InRange(content.Length, encContent.Length - 256, encContent.Length - 33);
}
public async Task Should_Decrypt_Identity_Card_Element_Reverse_Side()
{
PassportData passportData = GetPassportData();
EncryptedPassportElement idCardEl = Assert.Single(passportData.Data, el => el.Type == "identity_card");
Assert.NotNull(idCardEl.ReverseSide);
Assert.Equal("DgADAQADKAADNfRARK9jbzh5AAFqvAI", idCardEl.ReverseSide.FileId);
Assert.InRange(idCardEl.ReverseSide.FileDate, new DateTime(2018, 8, 30), new DateTime(2018, 8, 31));
Assert.Equal(0, idCardEl.ReverseSide.FileSize);
IDecrypter decrypter = new Decrypter();
Credentials credentials =
decrypter.DecryptCredentials(passportData.Credentials, EncryptionKey.RsaPrivateKey);
byte[] encryptedContent =
await System.IO.File.ReadAllBytesAsync("Files/identity_card-reverse_side.jpg.enc");
byte[] content = decrypter.DecryptFile(
encryptedContent,
credentials.SecureData.IdentityCard.ReverseSide
);
Assert.NotEmpty(content);
await System.IO.File.WriteAllBytesAsync("Files/identity_card-reverse_side.jpg", encryptedContent);
using (System.IO.MemoryStream
encryptedFileStream = new System.IO.MemoryStream(encryptedContent),
decryptedFileStream = new System.IO.MemoryStream()
)
{
await decrypter.DecryptFileAsync(
encryptedFileStream,
credentials.SecureData.IdentityCard.ReverseSide,
decryptedFileStream
);
Assert.Equal(content, decryptedFileStream.ToArray());
}
}
public async Task Should_Throw_Decrypting_Bytes_With_Wrong_FileCredentials()
{
FileCredentials wrongFileCredentials = new FileCredentials
{
FileHash = "THTjgv2FU7kff/29Vty/IcqKPmOGkL7F35fAzmkfZdI=",
Secret = "a+jxJoKPEaz77VCjRvDVcYHfIO3+h+oI+ruZh+KkYa0=",
};
IDecrypter decrypter = new Decrypter();
byte[] encContent = await File.ReadAllBytesAsync("Files/bytes_dec3.driver_license-selfie.jpg.enc");
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(
encContent,
wrongFileCredentials
)
);
Assert.Matches(@"^Data hash mismatch at position \d+\.$", exception.Message);
Assert.IsType <PassportDataDecryptionException>(exception);
}
public void Should_Throw_Decrypting_Unencrypted_File_Valid_Length()
{
FileCredentials fileCredentials = new FileCredentials
{
FileHash = "v3q47iscI6TS94CMo7HGQUOxw28LIf82NJBkImzP57c=",
Secret = "vF7nut7clg/H/pEaTJigo4mQJ0s8B+HGCWKTWtOTIdo=",
};
IDecrypter decrypter = new Decrypter();
byte[] encContent = new byte[2048]; // data length is divisible by 16
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(
encContent,
fileCredentials
)
);
Assert.Matches(@"^Data hash mismatch at position \d+\.$", exception.Message);
Assert.IsType <PassportDataDecryptionException>(exception);
}
public async Task Should_Throw_Decrypting_Unencrypted_File_Invalid_Length()
{
FileCredentials fileCredentials = new FileCredentials
{
FileHash = "v3q47iscI6TS94CMo7HGQUOxw28LIf82NJBkImzP57c=",
Secret = "vF7nut7clg/H/pEaTJigo4mQJ0s8B+HGCWKTWtOTIdo=",
};
IDecrypter decrypter = new Decrypter();
byte[] encContent = await File.ReadAllBytesAsync("Files/bytes_dec2.driver_license-selfie.jpg");
Exception exception = Assert.ThrowsAny <Exception>(() =>
decrypter.DecryptFile(
encContent,
fileCredentials
)
);
Assert.Matches(@"^Data length is not divisible by 16: \d+\.$", exception.Message);
Assert.IsType <PassportDataDecryptionException>(exception);
}