// modified copy from sn
private static VerificationResult VerifyStrongName(AssemblyName an, string assemblyFile)
{
byte [] publicKey = StrongNameManager.GetMappedPublicKey(an.GetPublicKeyToken());
if ((publicKey == null) || (publicKey.Length < 12))
{
// no mapping
publicKey = an.GetPublicKey();
if ((publicKey == null) || (publicKey.Length < 12))
{
return(VerificationResult.WeakNamed);
}
}
// Note: MustVerify is based on the original token (by design). Public key
// remapping won't affect if the assembly is verified or not.
if (StrongNameManager.MustVerify(new System.Reflection.AssemblyName(an.FullName)))
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey, 12);
StrongName sn = new StrongName(rsa);
if (sn.Verify(assemblyFile))
{
return(VerificationResult.StrongNamed);
}
else
{
return(VerificationResult.DelaySigned);
}
}
else
{
return(VerificationResult.Skipped);
}
}
// We don't want a dependency on StrongNameManager in Mono.Security.dll
static public bool IsAssemblyStrongnamed(string assemblyName)
{
if (!initialized)
{
lock (lockObject)
{
if (!initialized)
{
#if NET_2_1
// Moonlight cannot depend on machine.config
#else
string config = Environment.GetMachineConfigPath();
StrongNameManager.LoadConfig(config);
#endif
initialized = true;
}
}
}
try
{
// this doesn't load the assembly (well it unloads it ;)
// http://weblogs.asp.net/nunitaddin/posts/9991.aspx
AssemblyName an = AssemblyName.GetAssemblyName(assemblyName);
if (an == null)
{
return(false);
}
byte[] publicKey = StrongNameManager.GetMappedPublicKey(an.GetPublicKeyToken());
if ((publicKey == null) || (publicKey.Length < 12))
{
// no mapping
publicKey = an.GetPublicKey();
if ((publicKey == null) || (publicKey.Length < 12))
{
return(false);
}
}
// Note: MustVerify is based on the original token (by design). Public key
// remapping won't affect if the assembly is verified or not.
if (!StrongNameManager.MustVerify(an))
{
return(true);
}
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey, 12);
StrongName sn = new StrongName(rsa);
bool result = sn.Verify(assemblyName);
return(result);
}
catch
{
// no exception allowed
return(false);
}
}
static int Verify(string assemblyName, bool forceVerification, bool quiet)
{
// this doesn't load the assembly (well it unloads it ;)
// http://weblogs.asp.net/nunitaddin/posts/9991.aspx
AssemblyName an = null;
try {
an = AssemblyName.GetAssemblyName(assemblyName);
}
catch {
}
if (an == null)
{
Console.WriteLine("Unable to load assembly: {0}", assemblyName);
return(2);
}
byte[] publicKey = StrongNameManager.GetMappedPublicKey(an.GetPublicKeyToken());
if ((publicKey == null) || (publicKey.Length < 12))
{
// no mapping
publicKey = an.GetPublicKey();
if ((publicKey == null) || (publicKey.Length < 12))
{
Console.WriteLine("{0} is not a strongly named assembly.", assemblyName);
return(2);
}
}
// Note: MustVerify is based on the original token (by design). Public key
// remapping won't affect if the assembly is verified or not.
if (forceVerification || StrongNameManager.MustVerify(an))
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey, 12);
StrongName sn = new StrongName(rsa);
if (sn.Verify(assemblyName))
{
if (!quiet)
{
Console.WriteLine("Assembly {0} is strongnamed.", assemblyName);
}
return(0);
}
else
{
Console.WriteLine("Assembly {0} is delay-signed but not strongnamed", assemblyName);
return(1);
}
}
else
{
Console.WriteLine("Assembly {0} is strongnamed (verification skipped).", assemblyName);
return(0);
}
}
// TODO
// we would get better performance if the runtime hashed the
// assembly - as we wouldn't have to load it from disk a
// second time. The runtime already have implementations of
// SHA1 (and even MD5 if required someday).
static public bool VerifySignature(byte[] publicKey, int algorithm, byte[] hash, byte[] signature)
{
try {
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey);
return(Verify(rsa, (AssemblyHashAlgorithm)algorithm, hash, signature));
}
catch {
// no exception allowed
return(false);
}
}
public static int Verify(string assemblyName, bool forceVerification = true)
{
// this doesn't load the assembly (well it unloads it ;)
// http://weblogs.asp.net/nunitaddin/posts/9991.aspx
AssemblyName an = null;
try
{
an = AssemblyName.GetAssemblyName(assemblyName);
}
catch
{
}
if (an == null)
{
MessageBox.Show($"Unable to load assembly: {assemblyName}");
return(2);
}
var publicKey = StrongNameManager.GetMappedPublicKey(an.GetPublicKeyToken());
if ((publicKey == null) || (publicKey.Length < 12))
{
// no mapping
publicKey = an.GetPublicKey();
if ((publicKey == null) || (publicKey.Length < 12))
{
return(2);
}
}
// Note: MustVerify is based on the original token (by design). Public key
// remapping won't affect if the assembly is verified or not.
if (forceVerification || StrongNameManager.MustVerify(an))
{
var rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey, 12);
var sn = new StrongName(rsa);
if (sn.Verify(assemblyName))
{
return(0);
}
else
{
MessageBox.Show($"Assembly {assemblyName} is delay-signed but not strongnamed.");
return(1);
}
}
else
{
MessageBox.Show($"Assembly {assemblyName} is strongnamed (verification skipped).");
return(0);
}
}
public static bool IsAssemblyStrongnamed(string assemblyName)
{
if (!StrongName.initialized)
{
object obj = StrongName.lockObject;
lock (obj)
{
if (!StrongName.initialized)
{
StrongName.initialized = true;
}
}
}
bool result;
try
{
AssemblyName assemblyName2 = AssemblyName.GetAssemblyName(assemblyName);
if (assemblyName2 == null)
{
result = false;
}
else
{
byte[] mappedPublicKey = StrongNameManager.GetMappedPublicKey(assemblyName2.GetPublicKeyToken());
if (mappedPublicKey == null || mappedPublicKey.Length < 12)
{
mappedPublicKey = assemblyName2.GetPublicKey();
if (mappedPublicKey == null || mappedPublicKey.Length < 12)
{
return(false);
}
}
if (!StrongNameManager.MustVerify(assemblyName2))
{
result = true;
}
else
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(mappedPublicKey, 12);
StrongName strongName = new StrongName(rsa);
bool flag = strongName.Verify(assemblyName);
result = flag;
}
}
}
catch
{
result = false;
}
return(result);
}
public static bool VerifySignature(byte[] publicKey, int algorithm, byte[] hash, byte[] signature)
{
bool result;
try
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(publicKey);
result = StrongName.Verify(rsa, (AssemblyHashAlgorithm)algorithm, hash, signature);
}
catch
{
result = false;
}
return(result);
}
public void FromCapiPublicKeyBlob_Invalid()
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(strongName, 0);
}
public void FromCapiPublicKeyBlob_InvalidOffset()
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(new byte [0], 0);
}
public void FromCapiPublicKeyBlob_Null()
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(null);
}
public void FromCapiPublicKeyBlob()
{
RSA rsa = CryptoConvert.FromCapiPublicKeyBlob(strongNamePublicKey, 12);
Assert.AreEqual(strongNamePublicKeyString, rsa.ToXmlString(false), "PublicKey");
}
