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/*			     Written by Ken Goldman				*/
/*		       IBM Thomas J. Watson Research Center			*/
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#ifndef _TPMECC_SIGNATURE_SCHNORR_FP_H_
#define _TPMECC_SIGNATURE_SCHNORR_FP_H_

#if ALG_ECC && ALG_ECSCHNORR
TPM_RC TpmEcc_SignEcSchnorr(
			    Crypt_Int*            bnR,      // OUT: 'r' component of the signature
			    Crypt_Int*            bnS,      // OUT: 's' component of the signature
			    const Crypt_EccCurve* E,        // IN: the curve used in signing
			    Crypt_Int*            bnD,      // IN: the signing key
			    const TPM2B_DIGEST*   digest,   // IN: the digest to sign
			    TPM_ALG_ID            hashAlg,  // IN: signing scheme (contains a hash)
			    RAND_STATE*           rand      // IN: non-NULL when testing
			    );

//*** TpmEcc_ValidateSignatureEcSchnorr()
// This function is used to validate an EC Schnorr signature.
//  Return Type: TPM_RC
//      TPM_RC_SIGNATURE        signature not valid
TPM_RC TpmEcc_ValidateSignatureEcSchnorr(
					 Crypt_Int*            bnR,      // IN: 'r' component of the signature
					 Crypt_Int*            bnS,      // IN: 's' component of the signature
					 TPM_ALG_ID            hashAlg,  // IN: hash algorithm of the signature
					 const Crypt_EccCurve* E,        // IN: the curve used in the signature
					 //     process
					 Crypt_Point*        ecQ,        // IN: the public point of the key
					 const TPM2B_DIGEST* digest      // IN: the digest that was signed
					 );

#endif  // ALG_ECC && ALG_ECSCHNORR
#endif  // _TPMECC_SIGNATURE_SCHNORR_FP_H_