1 // This file was extracted from the TCG Published 2 // Trusted Platform Module Library 3 // Part 3: Commands 4 // Family "2.0" 5 // Level 00 Revision 01.16 6 // October 30, 2014 7 8 #include "InternalRoutines.h" 9 #include "EC_Ephemeral_fp.h" 10 #ifdef TPM_ALG_ECC 11 // 12 // 13 // Error Returns Meaning 14 // 15 // TPM_RC_NO_RESULT private key generation failed 16 // 17 TPM_RC 18 TPM2_EC_Ephemeral( 19 EC_Ephemeral_In *in, // IN: input parameter list 20 EC_Ephemeral_Out *out // OUT: output parameter list 21 ) 22 { 23 TPM2B_ECC_PARAMETER r; 24 25 // Get the random value that will be used in the point multiplications 26 // Note: this does not commit the count. 27 if(!CryptGenerateR(&r, 28 NULL, 29 in->curveID, 30 NULL)) 31 return TPM_RC_NO_RESULT; 32 33 CryptEccPointMultiply(&out->Q.t.point, in->curveID, &r, NULL); 34 35 // commit the count value 36 out->counter = CryptCommit(); 37 38 return TPM_RC_SUCCESS; 39 } 40 #endif 41
