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sm2_bmi2_bugfix (#961)

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piggypiggy
2020-05-20 00:12:26 +08:00
committed by GitHub
parent c6bcd23be3
commit 211b34e7b9
1 changed files with 12 additions and 0 deletions
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12
crypto/ec/asm/ecp_sm2z256-x86_64.pl
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@@ -1267,6 +1267,9 @@ __ecp_sm2z256_sqr_montx:
shrx $a_ptr, $acc0, $t4 shrx $a_ptr, $acc0, $t4
mov .Lpoly+8*3(%rip), $t1 mov .Lpoly+8*3(%rip), $t1
# set of = 0
add \$0, $acc2
# reduction step 1 # reduction step 1
xor $t1, $t1 xor $t1, $t1
adox $acc0, $acc1 adox $acc0, $acc1
@@ -1281,6 +1284,9 @@ __ecp_sm2z256_sqr_montx:
shlx $a_ptr, $acc1, $t0 shlx $a_ptr, $acc1, $t0
shrx $a_ptr, $acc1, $t4 shrx $a_ptr, $acc1, $t4
# set of = 0
add \$0, $acc2
# reduction step 2 # reduction step 2
adox $acc1, $acc2 adox $acc1, $acc2
adox $t1, $acc3 adox $t1, $acc3
@@ -1294,6 +1300,9 @@ __ecp_sm2z256_sqr_montx:
shlx $a_ptr, $acc2, $t0 shlx $a_ptr, $acc2, $t0
shrx $a_ptr, $acc2, $t4 shrx $a_ptr, $acc2, $t4
# set of = 0
add \$0, $acc2
# reduction step 3 # reduction step 3
adox $acc2, $acc3 adox $acc2, $acc3
adox $t1, $acc0 adox $t1, $acc0
@@ -1307,6 +1316,9 @@ __ecp_sm2z256_sqr_montx:
shlx $a_ptr, $acc3, $t0 shlx $a_ptr, $acc3, $t0
shrx $a_ptr, $acc3, $t4 shrx $a_ptr, $acc3, $t4
# set of = 0
add \$0, $acc2
# reduction step 4 # reduction step 4
adox $acc3, $acc0 adox $acc3, $acc0
adox $t1, $acc1 adox $t1, $acc1