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fixed possible race condition and improved rng #1

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fixed possible race condition and improved rng #1

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2 changes: 2 additions & 0 deletions kyber_1024/kyber_1024_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import(

func Test_kyber1024(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber1024-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down Expand Up @@ -54,6 +55,7 @@ func Test_kyber1024(t *testing.T){

func Test_kyber1024_90s(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber1024_90s-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down
2 changes: 2 additions & 0 deletions kyber_512/kyber_512_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import(

func Test_kyber512(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber512-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down Expand Up @@ -54,6 +55,7 @@ func Test_kyber512(t *testing.T){

func Test_kyber512_90s(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber512_90s-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down
2 changes: 2 additions & 0 deletions kyber_768/kyber_768_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import(

func Test_kyber_768(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber768-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down Expand Up @@ -54,6 +55,7 @@ func Test_kyber_768(t *testing.T){

func Test_kyber_768_90s(t *testing.T){
var curpos,temp_len uint
kyber_ops.Set_test_rand()
data,err:=os.ReadFile("kyber768_90s-kat.rsp")
if err!=nil{
t.Fatal(err)
Expand Down
17 changes: 10 additions & 7 deletions kyber_ops/Common.go
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,11 @@ func Init_Seed(str string)(err error){
}

var rng rng_info
var test_rand bool=false

func Set_test_rand(){
test_rand=true
}

func init_rng(seed *[48]byte){
rng.iv=[16]byte{}
Expand All @@ -50,6 +55,10 @@ func init_rng(seed *[48]byte){
}

func Read_RNG(rand_data []byte){
if !test_rand{
rand.Read(rand_data)
return
}
cipher,_:=aes.NewCipher(rng.key[:])
length:=len(rand_data)
for cur:=0;cur<length;cur+=16{
Expand Down Expand Up @@ -79,12 +88,6 @@ func update_rng(addion *[48]byte){
}
}

func init(){
var bytes48 [48]byte
rand.Read(bytes48[:])
init_rng(&bytes48)
}

func CBD2(B *[128]byte,f *[256]int16){
const b101=0x55555555
var(
Expand Down Expand Up @@ -318,7 +321,7 @@ func CSUBQ_vec[v vec](f v){
}

func aes_count(iv *[16]byte){
for i:=15;i>0;i--{
for i:=15;i>=0;i--{
iv[i]++
if iv[i]>0{
break
Expand Down