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home:yukoff:openSUSE:Leap:42.1:Backports
compat-openssl098.4444
openssl-CVE-2014-3570.patch
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File openssl-CVE-2014-3570.patch of Package compat-openssl098.4444
commit 4b4c0a19211bf73d81de52de697a1a9dc60aed82 Author: Andy Polyakov <appro@openssl.org> Date: Mon Jan 5 14:52:56 2015 +0100 Fix for CVE-2014-3570. Reviewed-by: Emilia Kasper <emilia@openssl.org> (cherry picked from commit e793809ba50c1e90ab592fb640a856168e50f3de) diff --git a/crypto/bn/asm/mips3.s b/crypto/bn/asm/mips3.s index dca4105..8ced51b 100644 --- a/crypto/bn/asm/mips3.s +++ b/crypto/bn/asm/mips3.s @@ -1584,17 +1584,17 @@ LEAF(bn_sqr_comba8) dmultu a_2,a_0 /* mul_add_c2(a[2],b[0],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_1,a_1 /* mul_add_c(a[1],b[1],c3,c1,c2); */ mflo t_1 mfhi t_2 @@ -1609,63 +1609,63 @@ LEAF(bn_sqr_comba8) dmultu a_0,a_3 /* mul_add_c2(a[0],b[3],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt c_3,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu c_3,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 - daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_1,a_2 /* mul_add_c2(a[1],b[2],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 sd c_1,24(a0) dmultu a_4,a_0 /* mul_add_c2(a[4],b[0],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt c_1,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu c_1,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 - daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_3,a_1 /* mul_add_c2(a[3],b[1],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_1,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu AT,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_2,a_2 /* mul_add_c(a[2],b[2],c2,c3,c1); */ mflo t_1 mfhi t_2 @@ -1680,93 +1680,93 @@ LEAF(bn_sqr_comba8) dmultu a_0,a_5 /* mul_add_c2(a[0],b[5],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_1,a_4 /* mul_add_c2(a[1],b[4],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_2,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu AT,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_2,a_3 /* mul_add_c2(a[2],b[3],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_2,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu AT,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 sd c_3,40(a0) dmultu a_6,a_0 /* mul_add_c2(a[6],b[0],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt c_3,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu c_3,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 - daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_5,a_1 /* mul_add_c2(a[5],b[1],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_4,a_2 /* mul_add_c2(a[4],b[2],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_3,a_3 /* mul_add_c(a[3],b[3],c1,c2,c3); */ mflo t_1 mfhi t_2 @@ -1781,108 +1781,108 @@ LEAF(bn_sqr_comba8) dmultu a_0,a_7 /* mul_add_c2(a[0],b[7],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt c_1,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu c_1,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 - daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_1,a_6 /* mul_add_c2(a[1],b[6],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_1,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu AT,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_2,a_5 /* mul_add_c2(a[2],b[5],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_1,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu AT,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_3,a_4 /* mul_add_c2(a[3],b[4],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_1,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu AT,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 sd c_2,56(a0) dmultu a_7,a_1 /* mul_add_c2(a[7],b[1],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_6,a_2 /* mul_add_c2(a[6],b[2],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_2,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu AT,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_5,a_3 /* mul_add_c2(a[5],b[3],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_2,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu AT,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_4,a_4 /* mul_add_c(a[4],b[4],c3,c1,c2); */ mflo t_1 mfhi t_2 @@ -1897,78 +1897,78 @@ LEAF(bn_sqr_comba8) dmultu a_2,a_7 /* mul_add_c2(a[2],b[7],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt c_3,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu c_3,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 - daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_3,a_6 /* mul_add_c2(a[3],b[6],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_4,a_5 /* mul_add_c2(a[4],b[5],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 sd c_1,72(a0) dmultu a_7,a_3 /* mul_add_c2(a[7],b[3],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt c_1,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu c_1,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 - daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_6,a_4 /* mul_add_c2(a[6],b[4],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_1,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu AT,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_5,a_5 /* mul_add_c(a[5],b[5],c2,c3,c1); */ mflo t_1 mfhi t_2 @@ -1983,48 +1983,48 @@ LEAF(bn_sqr_comba8) dmultu a_4,a_7 /* mul_add_c2(a[4],b[7],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_5,a_6 /* mul_add_c2(a[5],b[6],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_2,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu AT,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 sd c_3,88(a0) dmultu a_7,a_5 /* mul_add_c2(a[7],b[5],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt c_3,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu c_3,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 - daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_6,a_6 /* mul_add_c(a[6],b[6],c1,c2,c3); */ mflo t_1 mfhi t_2 @@ -2039,17 +2039,17 @@ LEAF(bn_sqr_comba8) dmultu a_6,a_7 /* mul_add_c2(a[6],b[7],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt c_1,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu c_1,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 - daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 sd c_2,104(a0) dmultu a_7,a_7 /* mul_add_c(a[7],b[7],c3,c1,c2); */ @@ -2070,9 +2070,9 @@ LEAF(bn_sqr_comba4) .set reorder ld a_0,0(a1) ld a_1,8(a1) + dmultu a_0,a_0 /* mul_add_c(a[0],b[0],c1,c2,c3); */ ld a_2,16(a1) ld a_3,24(a1) - dmultu a_0,a_0 /* mul_add_c(a[0],b[0],c1,c2,c3); */ mflo c_1 mfhi c_2 sd c_1,0(a0) @@ -2093,17 +2093,17 @@ LEAF(bn_sqr_comba4) dmultu a_2,a_0 /* mul_add_c2(a[2],b[0],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 dmultu a_1,a_1 /* mul_add_c(a[1],b[1],c3,c1,c2); */ mflo t_1 mfhi t_2 @@ -2118,48 +2118,48 @@ LEAF(bn_sqr_comba4) dmultu a_0,a_3 /* mul_add_c2(a[0],b[3],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt c_3,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu c_3,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 - daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 dmultu a_1,a_2 /* mul_add_c(a2[1],b[2],c1,c2,c3); */ mflo t_1 mfhi t_2 - slt AT,t_2,zero - daddu c_3,AT - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_1,t_1 sltu AT,c_1,t_1 - daddu t_2,AT + daddu c_1,t_1 + daddu AT,t_2 + sltu t_1,c_1,t_1 + daddu c_2,AT + daddu t_2,t_1 + sltu AT,c_2,AT daddu c_2,t_2 - sltu AT,c_2,t_2 daddu c_3,AT + sltu t_2,c_2,t_2 + daddu c_3,t_2 sd c_1,24(a0) dmultu a_3,a_1 /* mul_add_c2(a[3],b[1],c2,c3,c1); */ mflo t_1 mfhi t_2 - slt c_1,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_2,t_1 sltu AT,c_2,t_1 - daddu t_2,AT + daddu c_2,t_1 + daddu AT,t_2 + sltu t_1,c_2,t_1 + daddu c_3,AT + daddu t_2,t_1 + sltu c_1,c_3,AT daddu c_3,t_2 - sltu AT,c_3,t_2 - daddu c_1,AT + sltu t_2,c_3,t_2 + daddu c_1,t_2 dmultu a_2,a_2 /* mul_add_c(a[2],b[2],c2,c3,c1); */ mflo t_1 mfhi t_2 @@ -2174,17 +2174,17 @@ LEAF(bn_sqr_comba4) dmultu a_2,a_3 /* mul_add_c2(a[2],b[3],c3,c1,c2); */ mflo t_1 mfhi t_2 - slt c_2,t_2,zero - dsll t_2,1 - slt a2,t_1,zero - daddu t_2,a2 - dsll t_1,1 daddu c_3,t_1 sltu AT,c_3,t_1 - daddu t_2,AT + daddu c_3,t_1 + daddu AT,t_2 + sltu t_1,c_3,t_1 + daddu c_1,AT + daddu t_2,t_1 + sltu c_2,c_1,AT daddu c_1,t_2 - sltu AT,c_1,t_2 - daddu c_2,AT + sltu t_2,c_1,t_2 + daddu c_2,t_2 sd c_3,40(a0) dmultu a_3,a_3 /* mul_add_c(a[3],b[3],c1,c2,c3); */ diff --git a/crypto/bn/asm/x86_64-gcc.c b/crypto/bn/asm/x86_64-gcc.c index 2d80f19..eba8304 100644 --- a/crypto/bn/asm/x86_64-gcc.c +++ b/crypto/bn/asm/x86_64-gcc.c @@ -269,6 +269,10 @@ BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) /* sqr_add_c(a,i,c0,c1,c2) -- c+=a[i]^2 for three word number c=(c2,c1,c0) */ /* sqr_add_c2(a,i,c0,c1,c2) -- c+=2*a[i]*a[j] for three word number c=(c2,c1,c0) */ +/* + * Keep in mind that carrying into high part of multiplication result + * can not overflow, because it cannot be all-ones. + */ #if 0 /* original macros are kept for reference purposes */ #define mul_add_c(a,b,c0,c1,c2) { \ @@ -283,10 +287,10 @@ BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) BN_ULONG ta=(a),tb=(b),t0; \ t1 = BN_UMULT_HIGH(ta,tb); \ t0 = ta * tb; \ - t2 = t1+t1; c2 += (t2<t1)?1:0; \ - t1 = t0+t0; t2 += (t1<t0)?1:0; \ - c0 += t1; t2 += (c0<t1)?1:0; \ + c0 += t0; t2 = t1+((c0<t0)?1:0);\ c1 += t2; c2 += (c1<t2)?1:0; \ + c0 += t0; t1 += (c0<t0)?1:0; \ + c1 += t1; c2 += (c1<t1)?1:0; \ } #else #define mul_add_c(a,b,c0,c1,c2) do { \ @@ -324,22 +328,14 @@ BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) : "=a"(t1),"=d"(t2) \ : "a"(a),"m"(b) \ : "cc"); \ - asm ("addq %0,%0; adcq %2,%1" \ - : "+d"(t2),"+r"(c2) \ - : "g"(0) \ - : "cc"); \ - asm ("addq %0,%0; adcq %2,%1" \ - : "+a"(t1),"+d"(t2) \ - : "g"(0) \ - : "cc"); \ - asm ("addq %2,%0; adcq %3,%1" \ - : "+r"(c0),"+d"(t2) \ - : "a"(t1),"g"(0) \ - : "cc"); \ - asm ("addq %2,%0; adcq %3,%1" \ - : "+r"(c1),"+r"(c2) \ - : "d"(t2),"g"(0) \ - : "cc"); \ + asm ("addq %3,%0; adcq %4,%1; adcq %5,%2" \ + : "+r"(c0),"+r"(c1),"+r"(c2) \ + : "r"(t1),"r"(t2),"g"(0) \ + : "cc"); \ + asm ("addq %3,%0; adcq %4,%1; adcq %5,%2" \ + : "+r"(c0),"+r"(c1),"+r"(c2) \ + : "r"(t1),"r"(t2),"g"(0) \ + : "cc"); \ } while (0) #endif diff --git a/crypto/bn/bn_asm.c b/crypto/bn/bn_asm.c index 99bc2de..b95b003 100644 --- a/crypto/bn/bn_asm.c +++ b/crypto/bn/bn_asm.c @@ -431,6 +431,10 @@ BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) /* sqr_add_c(a,i,c0,c1,c2) -- c+=a[i]^2 for three word number c=(c2,c1,c0) */ /* sqr_add_c2(a,i,c0,c1,c2) -- c+=2*a[i]*a[j] for three word number c=(c2,c1,c0) */ +/* + * Keep in mind that carrying into high part of multiplication result + * can not overflow, because it cannot be all-ones. + */ #ifdef BN_LLONG #define mul_add_c(a,b,c0,c1,c2) \ t=(BN_ULLONG)a*b; \ @@ -471,10 +475,10 @@ BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) #define mul_add_c2(a,b,c0,c1,c2) { \ BN_ULONG ta=(a),tb=(b),t0; \ BN_UMULT_LOHI(t0,t1,ta,tb); \ - t2 = t1+t1; c2 += (t2<t1)?1:0; \ - t1 = t0+t0; t2 += (t1<t0)?1:0; \ - c0 += t1; t2 += (c0<t1)?1:0; \ + c0 += t0; t2 = t1+((c0<t0)?1:0);\ c1 += t2; c2 += (c1<t2)?1:0; \ + c0 += t0; t1 += (c0<t0)?1:0; \ + c1 += t1; c2 += (c1<t1)?1:0; \ } #define sqr_add_c(a,i,c0,c1,c2) { \ @@ -501,10 +505,10 @@ BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) BN_ULONG ta=(a),tb=(b),t0; \ t1 = BN_UMULT_HIGH(ta,tb); \ t0 = ta * tb; \ - t2 = t1+t1; c2 += (t2<t1)?1:0; \ - t1 = t0+t0; t2 += (t1<t0)?1:0; \ - c0 += t1; t2 += (c0<t1)?1:0; \ + c0 += t0; t2 = t1+((c0<t0)?1:0);\ c1 += t2; c2 += (c1<t2)?1:0; \ + c0 += t0; t1 += (c0<t0)?1:0; \ + c1 += t1; c2 += (c1<t1)?1:0; \ } #define sqr_add_c(a,i,c0,c1,c2) { \ diff --git a/crypto/bn/bntest.c b/crypto/bn/bntest.c index d41daac..9138c2f 100644 --- a/crypto/bn/bntest.c +++ b/crypto/bn/bntest.c @@ -676,44 +676,98 @@ int test_mul(BIO *bp) int test_sqr(BIO *bp, BN_CTX *ctx) { - BIGNUM a,c,d,e; - int i; + BIGNUM *a,*c,*d,*e; + int i, ret = 0; - BN_init(&a); - BN_init(&c); - BN_init(&d); - BN_init(&e); + a = BN_new(); + c = BN_new(); + d = BN_new(); + e = BN_new(); + if (a == NULL || c == NULL || d == NULL || e == NULL) + { + goto err; + } for (i=0; i<num0; i++) { - BN_bntest_rand(&a,40+i*10,0,0); - a.neg=rand_neg(); - BN_sqr(&c,&a,ctx); + BN_bntest_rand(a,40+i*10,0,0); + a->neg=rand_neg(); + BN_sqr(c,a,ctx); if (bp != NULL) { if (!results) { - BN_print(bp,&a); + BN_print(bp,a); BIO_puts(bp," * "); - BN_print(bp,&a); + BN_print(bp,a); BIO_puts(bp," - "); } - BN_print(bp,&c); + BN_print(bp,c); BIO_puts(bp,"\n"); } - BN_div(&d,&e,&c,&a,ctx); - BN_sub(&d,&d,&a); - if(!BN_is_zero(&d) || !BN_is_zero(&e)) - { - fprintf(stderr,"Square test failed!\n"); - return 0; - } + BN_div(d,e,c,a,ctx); + BN_sub(d,d,a); + if(!BN_is_zero(d) || !BN_is_zero(e)) + { + fprintf(stderr,"Square test failed!\n"); + goto err; + } } - BN_free(&a); - BN_free(&c); - BN_free(&d); - BN_free(&e); - return(1); + + /* Regression test for a BN_sqr overflow bug. */ + BN_hex2bn(&a, + "80000000000000008000000000000001FFFFFFFFFFFFFFFE0000000000000000"); + BN_sqr(c, a, ctx); + if (bp != NULL) + { + if (!results) + { + BN_print(bp,a); + BIO_puts(bp," * "); + BN_print(bp,a); + BIO_puts(bp," - "); + } + BN_print(bp,c); + BIO_puts(bp,"\n"); + } + BN_mul(d, a, a, ctx); + if (BN_cmp(c, d)) + { + fprintf(stderr, "Square test failed: BN_sqr and BN_mul produce " + "different results!\n"); + goto err; + } + + /* Regression test for a BN_sqr overflow bug. */ + BN_hex2bn(&a, + "80000000000000000000000080000001FFFFFFFE000000000000000000000000"); + BN_sqr(c, a, ctx); + if (bp != NULL) + { + if (!results) + { + BN_print(bp,a); + BIO_puts(bp," * "); + BN_print(bp,a); + BIO_puts(bp," - "); + } + BN_print(bp,c); + BIO_puts(bp,"\n"); + } + BN_mul(d, a, a, ctx); + if (BN_cmp(c, d)) + { + fprintf(stderr, "Square test failed: BN_sqr and BN_mul produce " + "different results!\n"); + goto err; + } + ret = 1; +err: + if (a != NULL) BN_free(a); + if (c != NULL) BN_free(c); + if (d != NULL) BN_free(d); + if (e != NULL) BN_free(e); + return ret; } int test_mont(BIO *bp, BN_CTX *ctx)
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