new internal static bool CryptGetProvParam(
SafeCryptProvHandle hProv,
uint dwParam,
StringBuilder pbData,
ref uint dwDataLen,
uint dwFlags)
{
bool result = CAPIMethods.CryptGetProvParam(hProv, dwParam, pbData, ref dwDataLen, dwFlags);
#if DEBUG
if (!result)
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != 0 && errorCode != CAPI.ERROR_NO_MORE_ITEMS)
{
System.Diagnostics.Debug.WriteLine("Error " + errorCode);
}
}
#endif
return(result);
}
/// <summary>
/// Gets all key containers from Capi provider.
/// </summary>
/// <param name="providerName">Provider name</param>
/// <param name="type">Type</param>
/// <param name="getMachineKeys">Indicates whether to obtain machine keys</param>
/// <returns>Enumerator of key strings</returns>
internal static IEnumerable <string> GetContainersFromCapiProvider(string providerName, uint type, bool getMachineKeys)
{
SafeCryptProvHandle provider = SafeCryptProvHandle.InvalidHandle;
uint flags = getMachineKeys ? CAPI.CRYPT_VERIFYCONTEXT | CAPI.CRYPT_MACHINE_KEYSET : CAPI.CRYPT_VERIFYCONTEXT;
int errorCode = 0;
if (CAPI.CryptAcquireContext(ref provider,
null,
providerName,
type,
flags,
out errorCode))
{
using (provider)
{
uint dwMaxSize = 0;
if (CAPI.CryptGetProvParam(provider, CAPI.PP_ENUMCONTAINERS, null, ref dwMaxSize, CAPI.CRYPT_FIRST))
{
StringBuilder container = new StringBuilder(checked ((int)dwMaxSize));
if (CAPI.CryptGetProvParam(provider, CAPI.PP_ENUMCONTAINERS, container, ref dwMaxSize, CAPI.CRYPT_FIRST))
{
yield return(container.ToString());
bool success = true;
do
{
success = CAPI.CryptGetProvParam(provider, CAPI.PP_ENUMCONTAINERS, container, ref dwMaxSize, CAPI.CRYPT_NEXT);
if (success)
{
yield return(container.ToString());
dwMaxSize = (uint)container.Capacity;
}
} while (success);
}
}
}
}
}
internal static bool CryptAcquireContext(
ref SafeCryptProvHandle hCryptProv,
string pwszContainer,
string pwszProvider,
uint dwProvType,
uint dwFlags,
out int errorCode)
{
errorCode = 0;
#if !RUNTIME_TYPE_NETCORE
CspParameters parameters = new CspParameters();
parameters.ProviderName = pwszProvider;
parameters.KeyContainerName = pwszContainer;
parameters.ProviderType = (int)dwProvType;
parameters.KeyNumber = -1;
parameters.Flags = (CspProviderFlags)((dwFlags & CAPI.CRYPT_MACHINE_KEYSET) == CAPI.CRYPT_MACHINE_KEYSET ? CspProviderFlags.UseMachineKeyStore : 0);
KeyContainerPermission kp = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry entry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.Open);
kp.AccessEntries.Add(entry);
kp.Demand();
#endif
bool rc = CAPIMethods.CryptAcquireContext(ref hCryptProv,
pwszContainer,
pwszProvider,
dwProvType,
dwFlags);
if (!rc)
{
errorCode = Marshal.GetLastWin32Error();
}
return(rc);
}
internal protected extern static bool CryptAcquireContext(
[In, Out] ref SafeCryptProvHandle hCryptProv,
[In][MarshalAs(UnmanagedType.LPStr)] string pszContainer,
[In][MarshalAs(UnmanagedType.LPStr)] string pszProvider,
[In] uint dwProvType,
[In] uint dwFlags);
internal static extern bool CryptGetProvParam(
[In] SafeCryptProvHandle hProv,
[In] uint dwParam,
[MarshalAs(UnmanagedType.LPStr)] StringBuilder pbData,
ref uint dwDataLen,
[In] uint dwFlags);
