| Platform SDK: Logon Authentication | 
The SecPkgCred_SupportedAlgs structure provides an array of infomation on algorithms supported with a particular credential.
typedef struct _SecPkgCred_SupportedAlgs
{
    DWORD     cSupportedAlgs;
    ALG_ID *  palgSupportedAlgs;
} SecPkgCred_SupportedAlgs, *PSecPkgCred_SupportedAlgs;
  Windows NT/2000: Requires Windows NT 3.51 or later.
  Windows 95/98: Requires Windows 95 or later.
  Header: Declared in Schannel.h; include Schnlsp.h.