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/********************************************************************************/
/* */
/* Math functions performed with canonical integers in byte buffers */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: MathOnByteBuffers_fp.h 1519 2019-11-15 20:43:51Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
/* 1. Copyright Licenses: */
/* */
/* - Trusted Computing Group (TCG) grants to the user of the source code in */
/* this specification (the "Source Code") a worldwide, irrevocable, */
/* nonexclusive, royalty free, copyright license to reproduce, create */
/* derivative works, distribute, display and perform the Source Code and */
/* derivative works thereof, and to grant others the rights granted herein. */
/* */
/* - The TCG grants to the user of the other parts of the specification */
/* (other than the Source Code) the rights to reproduce, distribute, */
/* display, and perform the specification solely for the purpose of */
/* developing products based on such documents. */
/* */
/* 2. Source Code Distribution Conditions: */
/* */
/* - Redistributions of Source Code must retain the above copyright licenses, */
/* this list of conditions and the following disclaimers. */
/* */
/* - Redistributions in binary form must reproduce the above copyright */
/* licenses, this list of conditions and the following disclaimers in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* 3. Disclaimers: */
/* */
/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */
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/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */
/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */
/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */
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/* (c) Copyright IBM Corp. and others, 2016 - 2019 */
/* */
/********************************************************************************/
#ifndef MATHONBYTEBUFFERS_FP_H
#define MATHONBYTEBUFFERS_FP_H
LIB_EXPORT int
UnsignedCompareB(
UINT32 aSize, // IN: size of a
const BYTE *a, // IN: a
UINT32 bSize, // IN: size of b
const BYTE *b // IN: b
);
int
SignedCompareB(
const UINT32 aSize, // IN: size of a
const BYTE *a, // IN: a buffer
const UINT32 bSize, // IN: size of b
const BYTE *b // IN: b buffer
);
TPM_RC
ModExpB(
UINT32 cSize, // IN: the size of the output buffer. It will
// need to be the same size as the modulus
BYTE *c, // OUT: the buffer to receive the results
// (c->size must be set to the maximum size
// for the returned value)
const UINT32 mSize,
const BYTE *m, // IN: number to exponentiate
const UINT32 eSize,
const BYTE *e, // IN: power
const UINT32 nSize,
const BYTE *n // IN: modulus
);
LIB_EXPORT TPM_RC
DivideB(
const TPM2B *n, // IN: numerator
const TPM2B *d, // IN: denominator
TPM2B *q, // OUT: quotient
TPM2B *r // OUT: remainder
);
UINT16
AdjustNumberB(
TPM2B *num,
UINT16 requestedSize
);
TPM2B *
ShiftLeft(
TPM2B *value // IN/OUT: value to shift and shifted value out
);
#endif
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