private bool DeletePasswordImpl(string credentialId)
{
// Find password, then Delete, then cleanup
using (KeyChainItemHandle handle = LookupKeyChainItem(credentialId))
{
if (handle == null)
{
return(false);
}
Interop.Security.OSStatus status = Interop.Security.SecKeychainItemDelete(handle);
return(status == Interop.Security.OSStatus.ErrSecSuccess);
}
}
private bool AddGenericPassword(Credential credential)
{
IntPtr passwordPtr = Marshal.StringToCoTaskMemUni(credential.Password);
Interop.Security.OSStatus status = Interop.Security.SecKeychainAddGenericPassword(
IntPtr.Zero,
InteropUtils.GetLengthInBytes(credential.CredentialId),
credential.CredentialId,
0,
null,
InteropUtils.GetLengthInBytes(credential.Password),
passwordPtr,
IntPtr.Zero);
return(status == Interop.Security.OSStatus.ErrSecSuccess);
}
private KeyChainItemHandle LookupKeyChainItem(string credentialId)
{
UInt32 passwordLength;
IntPtr passwordPtr;
IntPtr item;
Interop.Security.OSStatus status = Interop.Security.SecKeychainFindGenericPassword(
IntPtr.Zero,
InteropUtils.GetLengthInBytes(credentialId),
credentialId,
0,
null,
out passwordLength,
out passwordPtr,
out item);
if (status == Interop.Security.OSStatus.ErrSecSuccess)
{
return(new KeyChainItemHandle(item, passwordPtr, passwordLength));
}
return(null);
}
