diff options
Diffstat (limited to 'release/src/router/cyassl/ctaocrypt/src/fp_sqr_comba_3.i')
-rw-r--r-- | release/src/router/cyassl/ctaocrypt/src/fp_sqr_comba_3.i | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/release/src/router/cyassl/ctaocrypt/src/fp_sqr_comba_3.i b/release/src/router/cyassl/ctaocrypt/src/fp_sqr_comba_3.i new file mode 100644 index 00000000..c776702b --- /dev/null +++ b/release/src/router/cyassl/ctaocrypt/src/fp_sqr_comba_3.i @@ -0,0 +1,45 @@ +#ifdef TFM_SQR3 +void fp_sqr_comba3(fp_int *A, fp_int *B) +{ + fp_digit *a, b[6], c0, c1, c2, sc0, sc1, sc2; + + a = A->dp; + COMBA_START; + + /* clear carries */ + CLEAR_CARRY; + + /* output 0 */ + SQRADD(a[0],a[0]); + COMBA_STORE(b[0]); + + /* output 1 */ + CARRY_FORWARD; + SQRADD2(a[0], a[1]); + COMBA_STORE(b[1]); + + /* output 2 */ + CARRY_FORWARD; + SQRADD2(a[0], a[2]); SQRADD(a[1], a[1]); + COMBA_STORE(b[2]); + + /* output 3 */ + CARRY_FORWARD; + SQRADD2(a[1], a[2]); + COMBA_STORE(b[3]); + + /* output 4 */ + CARRY_FORWARD; + SQRADD(a[2], a[2]); + COMBA_STORE(b[4]); + COMBA_STORE2(b[5]); + COMBA_FINI; + + B->used = 6; + B->sign = FP_ZPOS; + memcpy(B->dp, b, 6 * sizeof(fp_digit)); + fp_clamp(B); +} +#endif + + |