TPMCmd/tpm/include/prototypes/TpmToOsslMath_fp.h

/* Microsoft Reference Implementation for TPM 2.0
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/*(Auto)
    Automatically Generated by TpmPrototypes version 2.2 February 10, 2016 
    Date: Mar 23, 2017 Time: 03:31:51 PM  
*/

#ifndef    _TPMTOOSSLMATH_FP_H_
#define    _TPMTOOSSLMATH_FP_H_

#if MATH_LIB == OSSL
//*** OsslToTpmBn()
// This function converts an OpenSSL BIGNUM to a TPM bignum. In this implementation
// it is assumed that OpenSSL used the same format for a big number as does the
// TPM -- an array of native-endian words in little-endian order.
//
// If the array allocated for the OpenSSL BIGNUM is not the space within the TPM
// bignum, then the data is copied. Otherwise, just the size field of the BIGNUM
// is copied.
void
OsslToTpmBn(
    bigNum          bn,
    BIGNUM          *osslBn
    );

//*** BigInitialized()
// This function initializes an OSSL BIGNUM from a TPM bignum.
BIGNUM *
BigInitialized(
    BIGNUM             *toInit,
    bigConst            initializer
    );

#ifdef LIBRARY_COMPATIBILITY_CHECK
void
MathLibraryCompatibilityCheck(
    void
    );
#endif

//*** BnModMult()
// Does multiply and divide returning the remainder of the divide.
LIB_EXPORT BOOL
BnModMult(
    bigNum              result,
    bigConst            op1,
    bigConst            op2,
    bigConst            modulus
    );

//*** BnMult()
// Multiplies two numbers
LIB_EXPORT BOOL
BnMult(
    bigNum               result,
    bigConst             multiplicand,
    bigConst             multiplier
    );

//*** BnDiv()
// This function divides two bigNum values. The function returns FALSE if
// there is an error in the operation.
LIB_EXPORT BOOL
BnDiv(
    bigNum               quotient,
    bigNum               remainder,
    bigConst             dividend,
    bigConst             divisor
    );

#ifdef TPM_ALG_RSA
//*** BnGcd()
// Get the greatest common divisor of two numbers
LIB_EXPORT BOOL
BnGcd(
    bigNum      gcd,            // OUT: the common divisor
    bigConst    number1,        // IN:
    bigConst    number2         // IN:
    );

//***BnModExp()
// Do modular exponentiation using bigNum values. The conversion from a bignum_t to
// a bigNum is trivial as they are based on the same structure
LIB_EXPORT BOOL
BnModExp(
    bigNum               result,         // OUT: the result
    bigConst             number,         // IN: number to exponentiate
    bigConst             exponent,       // IN:
    bigConst             modulus         // IN:
    );

//*** BnModInverse()
// Modular multiplicative inverse
LIB_EXPORT BOOL
BnModInverse(
    bigNum               result,
    bigConst             number,
    bigConst             modulus
    );
#endif // TPM_ALG_RSA

#ifdef TPM_ALG_ECC
//*** BnCurveInitialize()
// This function initializes the OpenSSL group definition
//
// It is a fatal error if 'groupContext' is not provided.
// return type: bigCurve *
//      NULL        the TPM_ECC_CURVE is not valid
//      non-NULL    points to a structure in 'groupContext'
bigCurve
BnCurveInitialize(
    bigCurve          E,           // IN: curve structure to initialize
    TPM_ECC_CURVE     curveId      // IN: curve identifier
    );

//*** BnEccModMult()
// This function does a point multiply of the form R = [d]S
// return type: BOOL
//  FALSE       failure in operation; treat as result being point at infinity
LIB_EXPORT BOOL
BnEccModMult(
    bigPoint             R,         // OUT: computed point
    pointConst           S,         // IN: point to multiply by 'd' (optional)
    bigConst             d,         // IN: scalar for [d]S
    bigCurve             E
    );

//*** BnEccModMult2()
// This function does a point multiply of the form R = [d]G + [u]Q
// return type: BOOL
//  FALSE       failure in operation; treat as result being point at infinity
LIB_EXPORT BOOL
BnEccModMult2(
    bigPoint             R,         // OUT: computed point
    pointConst           S,         // IN: optional point
    bigConst             d,         // IN: scalar for [d]S or [d]G
    pointConst           Q,         // IN: second point
    bigConst             u,         // IN: second scalar
    bigCurve             E          // IN: curve
    );

//** BnEccAdd()
// This function does addition of two points.
// return type: BOOL
//  FALSE       failure in operation; treat as result being point at infinity
LIB_EXPORT BOOL
BnEccAdd(
    bigPoint             R,         // OUT: computed point
    pointConst           S,         // IN: point to multiply by 'd'
    pointConst           Q,         // IN: second point
    bigCurve             E          // IN: curve
    );
#endif // TPM_ALG_ECC
#endif // MATHLIB OSSL


#endif  // _TPMTOOSSLMATH_FP_H_