backported CyaSSL/OpenSSL support for internal webserver instead of MatrixSSL

1 files changed, 36 insertions, 0 deletions

diff --git a/release/src/router/cyassl/ctaocrypt/src/fp_mul_comba_3.i b/release/src/router/cyassl/ctaocrypt/src/fp_mul_comba_3.i
new file mode 100644
index 00000000..7b1675d6
--- /dev/null
+++ b/release/src/router/cyassl/ctaocrypt/src/fp_mul_comba_3.i
@@ -0,0 +1,36 @@
+#ifdef TFM_MUL3
+void fp_mul_comba3(fp_int *A, fp_int *B, fp_int *C)
+{
+   fp_digit c0, c1, c2, at[6];
+
+   memcpy(at, A->dp, 3 * sizeof(fp_digit));
+   memcpy(at+3, B->dp, 3 * sizeof(fp_digit));
+   COMBA_START;
+
+   COMBA_CLEAR;
+   /* 0 */
+   MULADD(at[0], at[3]); 
+   COMBA_STORE(C->dp[0]);
+   /* 1 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[4]);    MULADD(at[1], at[3]); 
+   COMBA_STORE(C->dp[1]);
+   /* 2 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[5]);    MULADD(at[1], at[4]);    MULADD(at[2], at[3]); 
+   COMBA_STORE(C->dp[2]);
+   /* 3 */
+   COMBA_FORWARD;
+   MULADD(at[1], at[5]);    MULADD(at[2], at[4]); 
+   COMBA_STORE(C->dp[3]);
+   /* 4 */
+   COMBA_FORWARD;
+   MULADD(at[2], at[5]); 
+   COMBA_STORE(C->dp[4]);
+   COMBA_STORE2(C->dp[5]);
+   C->used = 6;
+   C->sign = A->sign ^ B->sign;
+   fp_clamp(C);
+   COMBA_FINI;
+}
+#endif