Am Freitag, den 11.12.2020, 14:30 +0800 schrieb Meng Yu:
+/* size in bytes of the n prime */
+#define HPRE_ECC_NIST_P128_N_SIZE 16
Do we truly need P-128? Besides, I do not see that curve being defined in
contemporary cipher specs.
+#define HPRE_ECC_NIST_P192_N_SIZE 24
+#define HPRE_ECC_NIST_P224_N_SIZE 28
+#define HPRE_ECC_NIST_P256_N_SIZE 32
+#define HPRE_ECC_NIST_P320_N_SIZE 40
Do we truly need P-320? Besides, I do not see that curve being defined in
contemporary cipher specs.
Yes, in rfc 5903, only P-256, P-384 and P-521 is defined, but in
'rfc5639' and "SEC 2: Recommended Elliptic Curve Domain Parameters",
other curves like P-128, P-192, P-224, and P-320 curve parameters are
found, and they are used in 'openssl';
How about your idea?
Thanks,
+#define HPRE_ECC_NIST_P384_N_SIZE 48
+#define HPRE_ECC_NIST_P521_N_SIZE 66
+
+/* size in bytes */
+#define HPRE_ECC_HW256_KSZ_B 32
+#define HPRE_ECC_HW384_KSZ_B 48
+#define HPRE_ECC_HW576_KSZ_B 72
+
+#define HPRE_ECDH_MAX_SZ HPRE_ECC_HW576_KSZ_B]
Ciao
Stephan
.
