public byte[] Decrypt(byte[] inData, bool fAOEP)
{
GlobalAllocSafeHandle pOutData = null;
byte[] buffer;
int pcbOutData = 0;
InfoCardTrace.ThrowInvalidArgumentConditional(null == inData, "indata");
using (HGlobalSafeHandle handle2 = HGlobalSafeHandle.Construct(inData.Length))
{
Marshal.Copy(inData, 0, handle2.DangerousGetHandle(), inData.Length);
int status = CardSpaceSelector.GetShim().m_csShimDecrypt(this.m_cryptoHandle.InternalHandle, fAOEP, inData.Length, handle2, out pcbOutData, out pOutData);
if (status != 0)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw InfoCardTrace.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = pcbOutData;
buffer = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), buffer, 0, pOutData.Length);
}
}
return(buffer);
}
public byte[] TransformFinalBlock(byte[] inputBuffer, int inputOffset, int inputCount)
{
GlobalAllocSafeHandle pOutData = null;
byte[] buffer;
int cbOutData = 0;
using (HGlobalSafeHandle handle2 = HGlobalSafeHandle.Construct(inputCount))
{
Marshal.Copy(inputBuffer, inputOffset, handle2.DangerousGetHandle(), inputCount);
int status = CardSpaceSelector.GetShim().m_csShimTransformFinalBlock(this.m_transCryptoHandle.InternalHandle, inputCount, handle2, out cbOutData, out pOutData);
if (status != 0)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw InfoCardTrace.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = cbOutData;
buffer = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), buffer, 0, pOutData.Length);
}
}
return(buffer);
}
public byte[] SignHash(byte[] hash, string hashAlgOid)
{
InfoCardTrace.ThrowInvalidArgumentConditional((hash == null) || (0 == hash.Length), "hash");
InfoCardTrace.ThrowInvalidArgumentConditional(string.IsNullOrEmpty(hashAlgOid), "hashAlgOid");
int pcbSig = 0;
GlobalAllocSafeHandle pSig = null;
using (HGlobalSafeHandle handle2 = HGlobalSafeHandle.Construct(hash.Length))
{
using (HGlobalSafeHandle handle3 = HGlobalSafeHandle.Construct(hashAlgOid))
{
Marshal.Copy(hash, 0, handle2.DangerousGetHandle(), hash.Length);
RuntimeHelpers.PrepareConstrainedRegions();
int status = CardSpaceSelector.GetShim().m_csShimSignHash(this.m_cryptoHandle.InternalHandle, hash.Length, handle2, handle3, out pcbSig, out pSig);
if (status != 0)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw InfoCardTrace.ThrowHelperError(new Win32Exception(status));
}
pSig.Length = pcbSig;
byte[] destination = DiagnosticUtility.Utility.AllocateByteArray(pSig.Length);
using (pSig)
{
Marshal.Copy(pSig.DangerousGetHandle(), destination, 0, pSig.Length);
}
return(destination);
}
}
}
public override byte[] GenerateDerivedKey(string algorithmUri, byte[] label, byte[] nonce, int derivedKeyLength, int offset)
{
if (!this.IsSupportedAlgorithm(algorithmUri))
{
throw InfoCardTrace.ThrowHelperError(new NotSupportedException(Microsoft.InfoCards.SR.GetString("ClientUnsupportedCryptoAlgorithm", new object[] { algorithmUri })));
}
byte[] destination = null;
using (HGlobalSafeHandle handle = HGlobalSafeHandle.Construct(label.Length))
{
using (HGlobalSafeHandle handle2 = HGlobalSafeHandle.Construct(nonce.Length))
{
GlobalAllocSafeHandle pDerivedKey = null;
int cbDerivedKey = 0;
Marshal.Copy(label, 0, handle.DangerousGetHandle(), label.Length);
Marshal.Copy(nonce, 0, handle2.DangerousGetHandle(), nonce.Length);
int error = CardSpaceSelector.GetShim().m_csShimGenerateDerivedKey(this.m_cryptoHandle.InternalHandle, label.Length, handle, nonce.Length, handle2, derivedKeyLength, offset, algorithmUri, out cbDerivedKey, out pDerivedKey);
if (error != 0)
{
throw InfoCardTrace.ThrowHelperError(new Win32Exception(error));
}
pDerivedKey.Length = cbDerivedKey;
destination = new byte[pDerivedKey.Length];
using (pDerivedKey)
{
Marshal.Copy(pDerivedKey.DangerousGetHandle(), destination, 0, pDerivedKey.Length);
}
return(destination);
}
}
}
//
// Summary:
// Special function for transforming the last block or partial block in the stream. The
// return value is an array containting the remaining transformed bytes.
// We return a new array here because the amount of information we send back at the end could
// be larger than a single block once padding is accounted for.
//
// Parameters:
// inputBuffer - The input for which to compute the transform.
// inputOffset - The offset into the byte array from which to begin using data.
// inputCount - The number of bytes in the byte array to use as data.
//
// Returns:
// The computed transform.
//
public byte[] TransformFinalBlock(byte[] inputBuffer, int inputOffset, int inputCount)
{
IDT.DebugAssert(null != inputBuffer && 0 != inputBuffer.Length, "null input buffer");
IDT.DebugAssert(0 != inputCount, "0 input count");
GlobalAllocSafeHandle pOutData = null;
int cbOutData = 0;
byte[] outData;
using (HGlobalSafeHandle pInData = HGlobalSafeHandle.Construct(inputCount))
{
Marshal.Copy(inputBuffer, inputOffset, pInData.DangerousGetHandle(), inputCount);
int status = CardSpaceSelector.GetShim().m_csShimTransformFinalBlock(m_transCryptoHandle.InternalHandle,
inputCount,
pInData,
out cbOutData,
out pOutData);
if (0 != status)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw IDT.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = cbOutData;
outData = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), outData, 0, pOutData.Length);
}
}
return(outData);
}
public byte[] Decrypt(byte[] inData, bool fAOEP)
{
GlobalAllocSafeHandle pOutData = null;
int cbOutData = 0;
byte[] outData;
IDT.ThrowInvalidArgumentConditional(null == inData, "indata");
using (HGlobalSafeHandle pInData = HGlobalSafeHandle.Construct(inData.Length))
{
Marshal.Copy(inData, 0, pInData.DangerousGetHandle(), inData.Length);
int status = CardSpaceSelector.GetShim().m_csShimDecrypt(m_cryptoHandle.InternalHandle,
fAOEP,
inData.Length,
pInData,
out cbOutData,
out pOutData);
if (0 != status)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw IDT.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = cbOutData;
outData = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), outData, 0, pOutData.Length);
}
}
return(outData);
}
//
// Summary:
// Implements the HashFinal method of the KeyedHashAlgorithm class by calling the InfoCard native client.
//
protected override byte[] HashFinal()
{
byte[] outData = null;
int cbOutData = 0;
IDT.DebugAssert(null != m_cachedBlock, "null cached block");
HGlobalSafeHandle pInData = null;
GlobalAllocSafeHandle pOutData = null;
try
{
if (null != m_cachedBlock)
{
if (0 != m_cachedBlock.Length)
{
pInData = HGlobalSafeHandle.Construct(m_cachedBlock.Length);
Marshal.Copy(m_cachedBlock, 0, pInData.DangerousGetHandle(), m_cachedBlock.Length);
}
int status = CardSpaceSelector.GetShim().m_csShimHashFinal(m_cryptoHandle.InternalHandle,
m_cachedBlock.Length,
null != pInData ? pInData : HGlobalSafeHandle.Construct(),
out cbOutData,
out pOutData);
if (0 != status)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw IDT.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = cbOutData;
outData = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), outData, 0, pOutData.Length);
}
}
}
finally
{
if (null != pInData)
{
pInData.Dispose();
}
Array.Clear(m_cachedBlock, 0, m_cachedBlock.Length);
m_cachedBlock = null;
}
return(outData);
}
// ISymmetricCrypto
public override byte[] GenerateDerivedKey(string algorithmUri,
byte[] label,
byte[] nonce,
int derivedKeyLength,
int offset)
{
IDT.DebugAssert(!String.IsNullOrEmpty(algorithmUri), "null alg uri");
IDT.DebugAssert(null != label && 0 != label.Length, "null label");
IDT.DebugAssert(null != nonce && 0 != nonce.Length, "null nonce");
if (!IsSupportedAlgorithm(algorithmUri))
{
throw IDT.ThrowHelperError(new NotSupportedException(SR.GetString(SR.ClientUnsupportedCryptoAlgorithm, algorithmUri)));
}
byte[] derivedKey = null;
using (HGlobalSafeHandle pLabel = HGlobalSafeHandle.Construct(label.Length))
{
using (HGlobalSafeHandle pNonce = HGlobalSafeHandle.Construct(nonce.Length))
{
GlobalAllocSafeHandle pDerivedKey = null;
int cbDerivedKey = 0;
Marshal.Copy(label, 0, pLabel.DangerousGetHandle(), label.Length);
Marshal.Copy(nonce, 0, pNonce.DangerousGetHandle(), nonce.Length);
int status = CardSpaceSelector.GetShim().m_csShimGenerateDerivedKey(m_cryptoHandle.InternalHandle,
label.Length,
pLabel,
nonce.Length,
pNonce,
derivedKeyLength,
offset,
algorithmUri,
out cbDerivedKey,
out pDerivedKey);
if (0 != status)
{
throw IDT.ThrowHelperError(new Win32Exception(status));
}
pDerivedKey.Length = cbDerivedKey;
derivedKey = new byte[pDerivedKey.Length];
using (pDerivedKey)
{
Marshal.Copy(pDerivedKey.DangerousGetHandle(), derivedKey, 0, pDerivedKey.Length);
}
}
}
return(derivedKey);
}
protected override byte[] HashFinal()
{
byte[] destination = null;
int cbOutData = 0;
HGlobalSafeHandle handle = null;
GlobalAllocSafeHandle pOutData = null;
try
{
if (this.m_cachedBlock == null)
{
return(destination);
}
if (this.m_cachedBlock.Length != 0)
{
handle = HGlobalSafeHandle.Construct(this.m_cachedBlock.Length);
Marshal.Copy(this.m_cachedBlock, 0, handle.DangerousGetHandle(), this.m_cachedBlock.Length);
}
int status = CardSpaceSelector.GetShim().m_csShimHashFinal(this.m_cryptoHandle.InternalHandle, this.m_cachedBlock.Length, (handle != null) ? handle : HGlobalSafeHandle.Construct(), out cbOutData, out pOutData);
if (status != 0)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw InfoCardTrace.ThrowHelperError(new Win32Exception(status));
}
pOutData.Length = cbOutData;
destination = DiagnosticUtility.Utility.AllocateByteArray(pOutData.Length);
using (pOutData)
{
Marshal.Copy(pOutData.DangerousGetHandle(), destination, 0, pOutData.Length);
}
}
finally
{
if (handle != null)
{
handle.Dispose();
}
Array.Clear(this.m_cachedBlock, 0, this.m_cachedBlock.Length);
this.m_cachedBlock = null;
}
return(destination);
}
public byte[] SignHash(byte[] hash, string hashAlgOid)
{
IDT.ThrowInvalidArgumentConditional(null == hash || 0 == hash.Length, "hash");
IDT.ThrowInvalidArgumentConditional(String.IsNullOrEmpty(hashAlgOid), "hashAlgOid");
int cbSig = 0;
GlobalAllocSafeHandle pSig = null;
byte[] sig;
using (HGlobalSafeHandle pHash = HGlobalSafeHandle.Construct(hash.Length))
{
using (HGlobalSafeHandle pHashAlgOid = HGlobalSafeHandle.Construct(hashAlgOid))
{
Marshal.Copy(hash, 0, pHash.DangerousGetHandle(), hash.Length);
RuntimeHelpers.PrepareConstrainedRegions();
int status = CardSpaceSelector.GetShim().m_csShimSignHash(m_cryptoHandle.InternalHandle,
hash.Length,
pHash,
pHashAlgOid,
out cbSig,
out pSig);
if (0 != status)
{
ExceptionHelper.ThrowIfCardSpaceException(status);
throw IDT.ThrowHelperError(new Win32Exception(status));
}
pSig.Length = cbSig;
sig = DiagnosticUtility.Utility.AllocateByteArray(pSig.Length);
using (pSig)
{
Marshal.Copy(pSig.DangerousGetHandle(), sig, 0, pSig.Length);
}
}
}
return(sig);
}
