RSA Security 5 manual AIECBuildPubKeyAccelTable

AI_ECBuildPubKeyAccelTable

AI_ECBuildPubKeyAccelTable

Purpose:

This AI allows you to build an acceleration table for a public key and the base point to be used in various elliptic curve (EC) operations. The acceleration values come from a table that includes values built for the base point, which are the same as those from AI_ECBuildAcceleratorTable, and additional values built for the public key. This AI performs at greater speeds than AI_ECBuildAcceleratorTable for both ECDSA verify and ECDH Phase 2 operations.

Type of information this allows you to use:

elliptic curve parameters as defined in X9.62 to generate auxiliary data for the acceleration of elliptic curve operations with base point and public key. Elliptic curve parameters can be generated through the execution of AI_ECParamGen.

Format of info supplied to B_SetAlgorithmInfo:

pointer to a B_EC_PARAMS structure:

typedef struct {
B_INFO_TYPE parameterInfoType;		/* used to interpret EC parameters */
POINTER	parameterInfoValue	/* describes elliptic curve */

}B_EC_PARAMS;

where parameterInfoType must be AI_ECPubKey and parameterInfoValue must be an

A_EC_PUBLIC_KEY structure:

typedef struct {
ITEM	publicKey;	/* public component */
A_EC_PARAMS curveParams;		/* the underlying elliptic curve parameters */

}A_EC_PUBLIC_KEY;

Format of info returned by B_GetAlgorithmInfo:

B_GetAlgorithmInfo is not supported with this AI. If called, it will return an error.

6 2 R S A B S A F E C r y p t o - C L i b r a r y R e f e r e n c e M a n u a l