/*-----------------------------------------------------------------------
 * File: CSM_KEYPARSE.H
 *
 * Copyright (c) 1995-2000 Intel Corporation. All rights reserved.
 *-----------------------------------------------------------------------
 */


#ifndef __CSM_KEYPARSE_H__
#define __CSM_KEYPARSE_H__

/* Key part counts for RSA keys */
#define CSM_NUMBER_RSA_PUBLIC_KEY_PARTS     ( 2 )
#define CSM_NUMBER_RSA_PRIVATE_KEY_PARTS    ( 8 )

/* Indexes into the key parts array for RSA keys */
#define CSM_RSA_MODULUS             ( 0 )
#define CSM_RSA_PUBLIC_EXPONENT     ( 1 )
#define CSM_RSA_PRIVATE_EXPONENT    ( 2 )
#define CSM_RSA_PRIME1              ( 3 )
#define CSM_RSA_PRIME2              ( 4 )
#define CSM_RSA_EXPONENT1           ( 5 )
#define CSM_RSA_EXPONENT2           ( 6 )
#define CSM_RSA_COEFFICIENT         ( 7 )

/* Key part counts for DSA keys */
#define CSM_NUMBER_DSA_PUBLIC_KEY_PARTS     ( 4 )
#define CSM_NUMBER_DSA_PRIVATE_KEY_PARTS    ( 4 )

/* Indexes into the key parts array for DSA keys */
#define CSM_DSA_PRIME           ( 0 )
#define CSM_DSA_SUB_PRIME       ( 1 )
#define CSM_DSA_BASE            ( 2 )
#define CSM_DSA_PUBLIC_VALUE    ( 3 )
#define CSM_DSA_PRIVATE_VALUE   ( 3 )

/* Key part counts for KEA keys */
#define CSM_NUMBER_KEA_PUBLIC_KEY_PARTS     ( 4 )
#define CSM_NUMBER_KEA_PRIVATE_KEY_PARTS    ( 4 )

/* Indexes into the key parts array for KEA keys */
#define CSM_KEA_PRIME           ( 0 )
#define CSM_KEA_SUB_PRIME       ( 1 )
#define CSM_KEA_BASE            ( 2 )
#define CSM_KEA_PUBLIC_VALUE    ( 3 )
#define CSM_KEA_PRIVATE_VALUE   ( 3 )

/* Key part counts for DH keys */
#define CSM_NUMBER_DH_PUBLIC_KEY_PARTS      ( 1 )
#define CSM_NUMBER_DH_PRIVATE_KEY_PARTS     ( 3 )

/* Indexes into the key parts array for DH keys */
#define CSM_DH_PUBLIC_VALUE     ( 0 )
#define CSM_DH_PRIME            ( 0 )
#define CSM_DH_BASE             ( 1 )
#define CSM_DH_PRIVATE_VALUE    ( 2 )

/* Key part counts for ECDSA keys */
#define CSM_NUMBER_ECDSA_PUBLIC_KEY_PARTS   ( 2 )
#define CSM_NUMBER_ECDSA_PRIVATE_KEY_PARTS  ( 2 )

/* Indexes into the key parts array for ECDSA keys */
#define CSM_ECDSA_PARAMS        ( 0 )
#define CSM_ECDSA_POINT         ( 1 )
#define CSM_ECDSA_PRIVATE_VALUE ( 1 )

/* Maximum key parts for all algorithms */
#define CSM_MAX_PUBLIC_KEY_PARTS \
    ( max( CSM_NUMBER_RSA_PUBLIC_KEY_PARTS, \
       max( CSM_NUMBER_DSA_PUBLIC_KEY_PARTS, \
        max( CSM_NUMBER_ECDSA_PUBLIC_KEY_PARTS, \
         max( CSM_NUMBER_DH_PUBLIC_KEY_PARTS, \
              CSM_NUMBER_KEA_PUBLIC_KEY_PARTS ) ) ) ) )
                                    
#define CSM_MAX_PRIVATE_KEY_PARTS \
    ( max( CSM_NUMBER_RSA_PRIVATE_KEY_PARTS, \
       max( CSM_NUMBER_DSA_PRIVATE_KEY_PARTS, \
        max( CSM_NUMBER_ECDSA_PRIVATE_KEY_PARTS, \
         max( CSM_NUMBER_DH_PRIVATE_KEY_PARTS, \
              CSM_NUMBER_KEA_PRIVATE_KEY_PARTS ) ) ) ) )

#define CSM_MAX_KEY_PARTS \
    ( max( CSM_MAX_PUBLIC_KEY_PARTS, CSM_MAX_PRIVATE_KEY_PARTS ) )

CSSM_RETURN CSM_CreateKeyblob( CSSM_MODULE_HANDLE ModuleHandle,
                              CSSM_ALGORITHMS KeyAlgorithm,
                              uint32 KeyClass,
                              uint32 KeyFormat,
                              const CSSM_DATA *pKeyData,
                              uint32 uNumKeyData,
                              CSSM_DATA *pKeyBlob,
                              CSSM_BOOL *pbAllocated );

CSSM_RETURN CSM_ParseKeyblob( CSSM_ALGORITHMS KeyAlgorithm,
                             uint32 KeyClass,
                             uint32 KeyFormat,
                             CSSM_DATA *pKeyData,
                             uint32 *puNumKeyData,
                             const CSSM_DATA *pKeyBlob );

/* Utility functions used by DER encode/decode functions */
CSSM_RETURN _CSM_AdjustForMSB( const CSSM_DATA *pSrc,
                              CSSM_DATA *pDest );

uint32 _CSM_GetDERSequenceLength( const BER_PARSED_ITEM *pBerItems,
                                  sint32 nNumBerItems );


#endif /* ifndef __CSM_KEYPARSE_H__ */