| static private Verify ( RSA rsa, AssemblyHashAlgorithm algorithm, byte hash, byte signature ) : bool | ||
| rsa | RSA | |
| algorithm | AssemblyHashAlgorithm | |
| hash | byte | |
| signature | byte | |
| return | bool | |
// 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);
}
}
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 bool Verify(Stream stream)
{
StrongName.StrongNameSignature strongNameSignature = this.StrongHash(stream, StrongName.StrongNameOptions.Signature);
if (strongNameSignature.Hash == null)
{
return(false);
}
bool result;
try
{
AssemblyHashAlgorithm algorithm = AssemblyHashAlgorithm.SHA1;
if (this.tokenAlgorithm == "MD5")
{
algorithm = AssemblyHashAlgorithm.MD5;
}
result = StrongName.Verify(this.rsa, algorithm, strongNameSignature.Hash, strongNameSignature.Signature);
}
catch (CryptographicException)
{
result = false;
}
return(result);
}
private static Assembly LoadAndVerifyAssemblyInternal(byte[] assemblyData)
{
Assembly assembly = Assembly.Load(assemblyData);
byte[] publicKey = assembly.GetName().GetPublicKey();
if (publicKey == null || publicKey.Length == 0)
{
return null;
}
RSACryptoServiceProvider rSACryptoServiceProvider = new RSACryptoServiceProvider();
rSACryptoServiceProvider.ImportCspBlob(publicKey);
StrongName strongName = new StrongName(rSACryptoServiceProvider);
Assembly result;
using (MemoryStream memoryStream = new MemoryStream(assemblyData))
{
if (strongName.Verify(memoryStream))
{
Security._verifiedAssemblies.Add(assembly);
result = assembly;
}
else
{
result = null;
}
}
return result;
}
// 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 (an)) {
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) {
string config = Environment.GetMachineConfigPath ();
StrongNameManager.LoadConfig (config);
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;
}
}
