| // This file was extracted from the TCG Published |
| // Trusted Platform Module Library |
| // Part 3: Commands |
| // Family "2.0" |
| // Level 00 Revision 01.16 |
| // October 30, 2014 |
| |
| #include "InternalRoutines.h" |
| #include "EC_Ephemeral_fp.h" |
| #ifdef TPM_ALG_ECC |
| // |
| // |
| // Error Returns Meaning |
| // |
| // TPM_RC_NO_RESULT private key generation failed |
| // |
| TPM_RC |
| TPM2_EC_Ephemeral( |
| EC_Ephemeral_In *in, // IN: input parameter list |
| EC_Ephemeral_Out *out // OUT: output parameter list |
| ) |
| { |
| TPM2B_ECC_PARAMETER r; |
| |
| // Get the random value that will be used in the point multiplications |
| // Note: this does not commit the count. |
| if(!CryptGenerateR(&r, |
| NULL, |
| in->curveID, |
| NULL)) |
| return TPM_RC_NO_RESULT; |
| |
| CryptEccPointMultiply(&out->Q.t.point, in->curveID, &r, NULL); |
| |
| // commit the count value |
| out->counter = CryptCommit(); |
| |
| return TPM_RC_SUCCESS; |
| } |
| #endif |
