@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: TODO - a short description !!!!C# Signature: [DllImport("advapi32.dll", SetLastError=true, CharSet=CharSet.Auto)] static extern bool CryptEnumProviders( [MarshalAs(UnmanagedType.U4)] int dwIndex, [MarshalAs(UnmanagedType.U4)] ref int pdwReserved, [MarshalAs(UnmanagedType.U4)] int dwFlags, [MarshalAs(UnmanagedType.U4)] ref int pdwProvType, StringBuilder pszProvName, [MarshalAs(UnmanagedType.U4)] ref int pcbProvName); Another kind of declaration: [DllImport("advapi32.dll", EntryPoint = "CryptEnumProviders", SetLastError = true)] static extern bool CryptEnumProviders( uint dwIndex, IntPtr pdwReserved, uint dwFlags, ref uint pdwProvType, StringBuilder pszProvName, ref uint pcbProvName); !!!!VB Signature: !!!!User-Defined Types: None. !!!!Alternative Managed API: Do you know one? Please contribute it! !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: [DllImport("Advapi32.dll")] internal static extern bool CryptEnumProviders( int dwIndex, IntPtr pdwReserved, int dwFlags, ref int pdwProvType, StringBuilder pszProvName, ref int pcbProvName); public static Dictionary<string, int> ReadAllProviders() { Dictionary<string, int> installedCSPs = new Dictionary<string, int>(); int cbName; int dwType; int dwIndex; StringBuilder pszName; dwIndex = 0; dwType = 1; cbName = 0; while (CryptEnumProviders(dwIndex, IntPtr.Zero, 0, ref dwType, null, ref cbName)) { pszName = new StringBuilder(cbName); if (CryptEnumProviders(dwIndex++, IntPtr.Zero, 0, ref dwType, pszName, ref cbName)) { installedCSPs.Add(pszName.ToString(),dwType); } } return installedCSPs; } !!!!Sample PowerShell Code: function Get-CryptoServiceProvider { $TypeDefinition=@" using System.Runtime.InteropServices; using System.Security; namespace PKI { public static class CSP { [DllImport("advapi32", CharSet = CharSet.Unicode, SetLastError = true), SuppressUnmanagedCodeSecurityAttribute] public static extern bool CryptEnumProviders( uint dwIndex, uint pdwReserved, uint dwFlags, ref uint pdwProvType, System.Text.StringBuilder pszProvName, ref uint pcbProvName); [DllImport("advapi32", CharSet = CharSet.Unicode, SetLastError = true), SuppressUnmanagedCodeSecurityAttribute] public static extern bool CryptEnumProviderTypes( uint dwIndex, uint pdwReserved, uint dwFlags, ref uint pdwProvType, System.Text.StringBuilder pszTypeName, ref uint pcbTypeName); } } "@ Add-Type -TypeDefinition $TypeDefinition -PassThru $CSP=@() $ProvTypes = @{} #region default value definition for provider types [UInt32]$dwIndex = 0 [UInt32]$pdwProvType = 0 $pszTypeName = New-Object Text.StringBuilder [UInt32]$pcbTypeName = 0 #endregion # retrieve provider type enumeration to a hashtable while ([PKI.CSP]::CryptEnumProviderTypes($dwIndex,0,0,[ref]$pdwProvType,$null,[ref]$pcbTypeName)) { $pszTypeName.Length = $pcbTypeName if ([PKI.CSP]::CryptEnumProviderTypes($dwIndex++,0,0,[ref]$pdwProvType,$pszTypeName,[ref]$pcbTypeName)) { $Type = $pszTypeName.TosTring() $ProvTypes.Add($pdwProvType,$Type) } } #region default value definition for providers [UInt32]$dwIndex = 0 [UInt32]$pdwProvType = 0 $pszProvName = New-Object Text.Stringbuilder [UInt32]$pcbProvName = 0 #endregion # retrieve providers while ([PKI.CSP]::CryptEnumProviders($dwIndex,0,0,[ref]$pdwProvType,$null,[ref]$pcbProvName)) { $pszProvName.Length = $pcbProvName if ([PKI.CSP]::CryptEnumProviders($dwIndex++,0,0,[ref]$pdwProvType,$pszProvName,[ref]$pcbProvName)) { $objCSP=New-Object System.Object $objCSP | Add-Member -NotePropertyName "Name" -NotePropertyValue $pszProvName.ToString() $objCSP | Add-Member -NotePropertyName "TypeNum" -NotePropertyValue $pdwProvType $objCSP | Add-Member -NotePropertyName "TypeName" -NotePropertyValue $ProvTypes[$pdwProvType] $CSP+=$objCSP } } $CSP | Format-Table -AutoSize } Documentation: CryptEnumProviders@msdn on MSDN
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