public byte[] CryptDeriveKey(string algname, string alghashname, int keySize, byte[] rgbIV)
{
if (keySize < 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_InvalidKeySize"));
}
int num = X509Utils.NameOrOidToAlgId(alghashname, OidGroup.HashAlgorithm);
if (num == 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidAlgorithm"));
}
int num2 = X509Utils.NameOrOidToAlgId(algname, OidGroup.AllGroups);
if (num2 == 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidAlgorithm"));
}
if (rgbIV == null)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidIV"));
}
byte[] result = null;
Rfc2898DeriveBytes.DeriveKey(this.ProvHandle, num2, num, this.m_password, this.m_password.Length, keySize << 16, rgbIV, rgbIV.Length, JitHelpers.GetObjectHandleOnStack <byte[]>(ref result));
return(result);
}
public byte[] CryptDeriveKey(string algname, string alghashname, int keySize, byte[] rgbIV)
{
if (keySize < 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_InvalidKeySize"));
}
int algId1 = X509Utils.NameOrOidToAlgId(alghashname, OidGroup.HashAlgorithm);
if (algId1 == 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidAlgorithm"));
}
int algId2 = X509Utils.NameOrOidToAlgId(algname, OidGroup.AllGroups);
if (algId2 == 0)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidAlgorithm"));
}
if (rgbIV == null)
{
throw new CryptographicException(Environment.GetResourceString("Cryptography_PasswordDerivedBytes_InvalidIV"));
}
byte[] o = (byte[])null;
SafeProvHandle provHandle = this.ProvHandle;
int algid = algId2;
int algidHash = algId1;
byte[] password = this.m_password;
int length1 = this.m_password.Length;
int dwFlags = keySize << 16;
byte[] IV = rgbIV;
int length2 = IV.Length;
ObjectHandleOnStack objectHandleOnStack = JitHelpers.GetObjectHandleOnStack <byte[]>(ref o);
Rfc2898DeriveBytes.DeriveKey(provHandle, algid, algidHash, password, length1, dwFlags, IV, length2, objectHandleOnStack);
return(o);
}
