public void KeyContainer()
{
if (!NativeMethodsShared.IsWindows)
{
return; // "Key container is not supported, except under Windows"
}
var t = new ResolveComReference.TlbImp();
t.TypeLibName = "FakeTlb.tlb";
string badParameterValue = "badKeyContainer";
string goodParameterValue = "myKeyContainer";
try
{
t.ToolPath = Path.GetTempPath();
Assert.Null(t.KeyContainer); // "KeyContainer should be null by default");
CommandLine.ValidateNoParameterStartsWith(
t,
@"/keycontainer:",
false /* no response file */);
t.KeyContainer = badParameterValue;
Assert.Equal(badParameterValue, t.KeyContainer); // "New KeyContainer value should be set"
CommandLine.ValidateHasParameter(t, @"/keycontainer:" + badParameterValue, false /* no response file */);
Utilities.ExecuteTaskAndVerifyLogContainsErrorFromResource(t, "AxTlbBaseTask.StrongNameUtils.NoKeyPairInContainer", t.KeyContainer);
// ensure the key does not exist in the CSP
StrongNameHelpers.StrongNameKeyDelete(goodParameterValue);
IntPtr publicKeyBlob = IntPtr.Zero;
int publicKeyBlobSize = 0;
// add key to CSP
if (StrongNameHelpers.StrongNameKeyGen(goodParameterValue, 1 /* leave key registered */, out publicKeyBlob, out publicKeyBlobSize) && publicKeyBlob != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(publicKeyBlob);
t.KeyContainer = goodParameterValue;
Assert.Equal(goodParameterValue, t.KeyContainer); // "New KeyContainer value should be set"
CommandLine.ValidateHasParameter(t, @"/keycontainer:" + goodParameterValue, false /* no response file */);
Utilities.ExecuteTaskAndVerifyLogDoesNotContainErrorFromResource(t, "AxTlbBaseTask.StrongNameUtils.NoKeyPairInContainer", t.KeyContainer);
}
else
{
Assert.True(false, "Key container could not be created (perhaps you are not running as admin).");
}
}
finally
{
// remove key from CSP
StrongNameHelpers.StrongNameKeyDelete(goodParameterValue);
// get rid of the generated temp file
if (goodParameterValue != null)
{
File.Delete(goodParameterValue);
}
}
}
private unsafe byte[] ComputePublicKey()
{
byte[] dest = (byte[])null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
IntPtr ppbPublicKeyBlob = IntPtr.Zero;
int pcbPublicKeyBlob = 0;
try
{
if (!(!this._keyPairExported ? StrongNameHelpers.StrongNameGetPublicKey(this._keyPairContainer, (byte[])null, 0, out ppbPublicKeyBlob, out pcbPublicKeyBlob) : StrongNameHelpers.StrongNameGetPublicKey((string)null, this._keyPairArray, this._keyPairArray.Length, out ppbPublicKeyBlob, out pcbPublicKeyBlob)))
{
throw new ArgumentException(Environment.GetResourceString("Argument_StrongNameGetPublicKey"));
}
dest = new byte[pcbPublicKeyBlob];
Buffer.Memcpy(dest, 0, (byte *)ppbPublicKeyBlob.ToPointer(), 0, pcbPublicKeyBlob);
}
finally
{
if (ppbPublicKeyBlob != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(ppbPublicKeyBlob);
}
}
}
return(dest);
}
internal static bool GenerateStrongNameFile(string filename)
{
// variables that hold the unmanaged key
IntPtr keyBlob = IntPtr.Zero;
int generatedSize = 0;
// create the key
bool createdKey = StrongNameHelpers.StrongNameKeyGen(null,
0 /*No flags. 1 is to save the key in the key container */,
out keyBlob, out generatedSize);
// if there was a problem, translate it and report it
if (!createdKey || keyBlob == IntPtr.Zero)
{
throw Marshal.GetExceptionForHR(StrongNameHelpers.StrongNameErrorInfo());
}
try {
Debug.Assert(keyBlob != IntPtr.Zero);
// make sure the key size makes sense
Debug.Assert(generatedSize > 0 && generatedSize <= Int32.MaxValue);
if (generatedSize <= 0 || generatedSize > Int32.MaxValue)
{
throw new InvalidOperationException(SR.GetString(SR.Browser_InvalidStrongNameKey));
}
// get the key into managed memory
byte[] key = new byte[generatedSize];
Marshal.Copy(keyBlob, key, 0, (int)generatedSize);
// write the key to the specified file
using (FileStream snkStream = new FileStream(filename, FileMode.Create, FileAccess.Write)) {
using (BinaryWriter snkWriter = new BinaryWriter(snkStream)) {
snkWriter.Write(key);
}
}
}
finally {
// release the unmanaged memory the key resides in
if (keyBlob != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(keyBlob);
}
}
return(true);
}
[System.Security.SecurityCritical] // auto-generated
private unsafe byte[] ComputePublicKey()
{
byte[] publicKey = null;
// Make sure pbPublicKey is not leaked with async exceptions
RuntimeHelpers.PrepareConstrainedRegions();
try {
}
finally
{
IntPtr pbPublicKey = IntPtr.Zero;
int cbPublicKey = 0;
try
{
bool result;
if (_keyPairExported)
{
result = StrongNameHelpers.StrongNameGetPublicKey(null, _keyPairArray, _keyPairArray.Length,
out pbPublicKey, out cbPublicKey);
}
else
{
result = StrongNameHelpers.StrongNameGetPublicKey(_keyPairContainer, null, 0,
out pbPublicKey, out cbPublicKey);
}
if (!result)
{
throw new ArgumentException(Environment.GetResourceString("Argument_StrongNameGetPublicKey"));
}
publicKey = new byte[cbPublicKey];
Buffer.Memcpy(publicKey, 0, (byte *)(pbPublicKey.ToPointer()), 0, cbPublicKey);
}
finally
{
if (pbPublicKey != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(pbPublicKey);
}
}
}
return(publicKey);
}
private unsafe byte[] ComputePublicKey()
{
byte[] dest = null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
IntPtr zero = IntPtr.Zero;
int pcbPublicKeyBlob = 0;
try
{
bool flag;
if (this._keyPairExported)
{
flag = StrongNameHelpers.StrongNameGetPublicKey(null, this._keyPairArray, this._keyPairArray.Length, out zero, out pcbPublicKeyBlob);
}
else
{
flag = StrongNameHelpers.StrongNameGetPublicKey(this._keyPairContainer, (byte[])null, 0, out zero, out pcbPublicKeyBlob);
}
if (!flag)
{
throw new ArgumentException(Environment.GetResourceString("Argument_StrongNameGetPublicKey"));
}
dest = new byte[pcbPublicKeyBlob];
Buffer.memcpy((byte *)zero.ToPointer(), 0, dest, 0, pcbPublicKeyBlob);
}
finally
{
if (zero != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(zero);
}
}
}
return(dest);
}
private bool ResolveAssemblyKey()
{
bool pfxSuccess = true;
if (!string.IsNullOrEmpty(KeyFile))
{
string keyFileExtension = String.Empty;
try
{
keyFileExtension = Path.GetExtension(KeyFile);
}
catch (ArgumentException ex)
{
Log.LogErrorWithCodeFromResources("ResolveKeySource.InvalidKeyName", KeyFile, ex.Message);
pfxSuccess = false;
}
if (pfxSuccess)
{
if (0 != String.Compare(keyFileExtension, pfxFileExtension, StringComparison.OrdinalIgnoreCase))
{
ResolvedKeyFile = KeyFile;
}
else
{
#if FEATURE_PFX_SIGNING
pfxSuccess = false;
// it is .pfx file. It is being imported into key container with name = "VS_KEY_<MD5 check sum of the encrypted file>"
FileStream fs = null;
try
{
string currentUserName = Environment.UserDomainName + "\\" + Environment.UserName;
// we use the curent user name to randomize the associated container name, i.e different user on the same machine will export to different keys
// this is because SNAPI by default will create keys in "per-machine" crypto store (visible for all the user) but will set the permission such only
// creator will be able to use it. This will make imposible for other user both to sign or export the key again (since they also can not delete that key).
// Now different users will use different container name. We use ToLower(invariant) because this is what the native equivalent of this function (Create new key, or VC++ import-er).
// use as well and we want to keep the hash (and key container name the same) otherwise user could be prompt for a password twice.
byte[] userNameBytes = System.Text.Encoding.Unicode.GetBytes(currentUserName.ToLower(CultureInfo.InvariantCulture));
fs = File.OpenRead(KeyFile);
int fileLength = (int)fs.Length;
var keyBytes = new byte[fileLength];
fs.Read(keyBytes, 0, fileLength);
UInt64 hash = HashFromBlob(keyBytes);
hash ^= HashFromBlob(userNameBytes); // modify it with the username hash, so each user would get different hash for the same key
string hashedContainerName = pfxFileContainerPrefix + hash.ToString("X016", CultureInfo.InvariantCulture);
if (StrongNameHelpers.StrongNameGetPublicKey(hashedContainerName, IntPtr.Zero, 0, out IntPtr publicKeyBlob, out _) && publicKeyBlob != IntPtr.Zero)
{
StrongNameHelpers.StrongNameFreeBuffer(publicKeyBlob);
pfxSuccess = true;
}
else
{
Log.LogErrorWithCodeFromResources("ResolveKeySource.KeyFileForSignAssemblyNotImported", KeyFile, hashedContainerName);
Log.LogErrorWithCodeFromResources("ResolveKeySource.KeyImportError", KeyFile);
}
if (pfxSuccess)
{
ResolvedKeyContainer = hashedContainerName;
}
}