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authormarha <marha@users.sourceforge.net>2012-01-27 20:34:07 +0100
committermarha <marha@users.sourceforge.net>2012-01-27 20:34:07 +0100
commit829194c926fa1e3bd45e4fe740e0bc42efe6ace6 (patch)
tree6b4b6de1185b25f8e6071b3204fcb69762bdc0ac /openssl/crypto/bn
parent40bdd8b27f5c730b8d0c9a189e89fb51a5400611 (diff)
parentc6a1477b0092762299491d79b3a8cb094c6456da (diff)
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Merge remote-tracking branch 'origin/released'
Conflicts: openssl/Makefile
Diffstat (limited to 'openssl/crypto/bn')
-rw-r--r--openssl/crypto/bn/asm/ppc.pl2
-rw-r--r--openssl/crypto/bn/asm/x86-mont.pl4
-rw-r--r--openssl/crypto/bn/bn_blind.c37
3 files changed, 27 insertions, 16 deletions
diff --git a/openssl/crypto/bn/asm/ppc.pl b/openssl/crypto/bn/asm/ppc.pl
index 37c65d351..f4093177e 100644
--- a/openssl/crypto/bn/asm/ppc.pl
+++ b/openssl/crypto/bn/asm/ppc.pl
@@ -949,7 +949,7 @@ $data=<<EOF;
addze r11,r0
#mul_add_c(a[3],b[2],c3,c1,c2);
$LD r6,`3*$BNSZ`(r4)
- $LD r7,`2*$BNSZ`(r4)
+ $LD r7,`2*$BNSZ`(r5)
$UMULL r8,r6,r7
$UMULH r9,r6,r7
addc r12,r8,r12
diff --git a/openssl/crypto/bn/asm/x86-mont.pl b/openssl/crypto/bn/asm/x86-mont.pl
index 5cd3cd2ed..e8f6b0508 100644
--- a/openssl/crypto/bn/asm/x86-mont.pl
+++ b/openssl/crypto/bn/asm/x86-mont.pl
@@ -527,8 +527,10 @@ $sbit=$num;
&jle (&label("sqradd"));
&mov ($carry,"edx");
- &lea ("edx",&DWP(0,$sbit,"edx",2));
+ &add ("edx","edx");
&shr ($carry,31);
+ &add ("edx",$sbit);
+ &adc ($carry,0);
&set_label("sqrlast");
&mov ($word,$_n0);
&mov ($inp,$_np);
diff --git a/openssl/crypto/bn/bn_blind.c b/openssl/crypto/bn/bn_blind.c
index e060592fd..9ed8bc2b4 100644
--- a/openssl/crypto/bn/bn_blind.c
+++ b/openssl/crypto/bn/bn_blind.c
@@ -126,7 +126,7 @@ struct bn_blinding_st
* used only by crypto/rsa/rsa_eay.c, rsa_lib.c */
#endif
CRYPTO_THREADID tid;
- unsigned int counter;
+ int counter;
unsigned long flags;
BN_MONT_CTX *m_ctx;
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
@@ -160,7 +160,10 @@ BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod)
if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
- ret->counter = BN_BLINDING_COUNTER;
+ /* Set the counter to the special value -1
+ * to indicate that this is never-used fresh blinding
+ * that does not need updating before first use. */
+ ret->counter = -1;
CRYPTO_THREADID_current(&ret->tid);
return(ret);
err:
@@ -190,7 +193,10 @@ int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
goto err;
}
- if (--(b->counter) == 0 && b->e != NULL &&
+ if (b->counter == -1)
+ b->counter = 0;
+
+ if (++b->counter == BN_BLINDING_COUNTER && b->e != NULL &&
!(b->flags & BN_BLINDING_NO_RECREATE))
{
/* re-create blinding parameters */
@@ -205,8 +211,8 @@ int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
ret=1;
err:
- if (b->counter == 0)
- b->counter = BN_BLINDING_COUNTER;
+ if (b->counter == BN_BLINDING_COUNTER)
+ b->counter = 0;
return(ret);
}
@@ -227,6 +233,12 @@ int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
return(0);
}
+ if (b->counter == -1)
+ /* Fresh blinding, doesn't need updating. */
+ b->counter = 0;
+ else if (!BN_BLINDING_update(b,ctx))
+ return(0);
+
if (r != NULL)
{
if (!BN_copy(r, b->Ai)) ret=0;
@@ -247,22 +259,19 @@ int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *ct
int ret;
bn_check_top(n);
- if ((b->A == NULL) || (b->Ai == NULL))
- {
- BNerr(BN_F_BN_BLINDING_INVERT_EX,BN_R_NOT_INITIALIZED);
- return(0);
- }
if (r != NULL)
ret = BN_mod_mul(n, n, r, b->mod, ctx);
else
- ret = BN_mod_mul(n, n, b->Ai, b->mod, ctx);
-
- if (ret >= 0)
{
- if (!BN_BLINDING_update(b,ctx))
+ if (b->Ai == NULL)
+ {
+ BNerr(BN_F_BN_BLINDING_INVERT_EX,BN_R_NOT_INITIALIZED);
return(0);
+ }
+ ret = BN_mod_mul(n, n, b->Ai, b->mod, ctx);
}
+
bn_check_top(n);
return(ret);
}