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/********************************************************************************/
/* */
/* */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: CryptEccSignature_fp.h 809 2016-11-16 18:31:54Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
/* 1. Copyright Licenses: */
/* */
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/* 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. */
/* */
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/* (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. */
/* */
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/* licenses, this list of conditions and the following disclaimers in the */
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/* 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 */
/* */
/********************************************************************************/
#ifndef CRYPTECCSIGNATURE_FP_H
#define CRYPTECCSIGNATURE_FP_H
TPM_RC
BnSignEcdsa(
bigNum bnR, // OUT: r component of the signature
bigNum bnS, // OUT: s component of the signature
bigCurve E, // IN: the curve used in the signature
// process
bigNum bnD, // IN: private signing key
const TPM2B_DIGEST *digest, // IN: the digest to sign
RAND_STATE *rand // IN: used in debug of signing
);
LIB_EXPORT TPM_RC
CryptEccSign(
TPMT_SIGNATURE *signature, // OUT: signature
OBJECT *signKey, // IN: ECC key to sign the hash
const TPM2B_DIGEST *digest, // IN: digest to sign
TPMT_ECC_SCHEME *scheme, // IN: signing scheme
RAND_STATE *rand
);
TPM_RC
BnValidateSignatureEcdsa(
bigNum bnR, // IN: r component of the signature
bigNum bnS, // IN: s component of the signature
bigCurve E, // IN: the curve used in the signature
// process
bn_point_t *ecQ, // IN: the public point of the key
const TPM2B_DIGEST *digest // IN: the digest that was signed
);
LIB_EXPORT TPM_RC
CryptEccValidateSignature(
TPMT_SIGNATURE *signature, // IN: signature to be verified
OBJECT *signKey, // IN: ECC key signed the hash
const TPM2B_DIGEST *digest // IN: digest that was signed
);
LIB_EXPORT TPM_RC
CryptEccCommitCompute(
TPMS_ECC_POINT *K, // OUT: [d]B or [r]Q
TPMS_ECC_POINT *L, // OUT: [r]B
TPMS_ECC_POINT *E, // OUT: [r]M
TPM_ECC_CURVE curveId, // IN: the curve for the computations
TPMS_ECC_POINT *M, // IN: M (optional)
TPMS_ECC_POINT *B, // IN: B (optional)
TPM2B_ECC_PARAMETER *d, // IN: d (optional)
TPM2B_ECC_PARAMETER *r // IN: the computed r value (required)
);
#endif
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