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SUSE:SLE-12-SP5:GA
openssl.20898
openssl-1_1-CVE-2019-1551.patch
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File openssl-1_1-CVE-2019-1551.patch of Package openssl.20898
From f1c5eea8a817075d31e43f5876993c6710238c98 Mon Sep 17 00:00:00 2001 From: Andy Polyakov <appro@openssl.org> Date: Wed, 4 Dec 2019 12:48:21 +0100 Subject: [PATCH] Fix an overflow bug in rsaz_512_sqr There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. CVE-2019-1551 Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de> (Merged from https://github.com/openssl/openssl/pull/10576) --- crypto/bn/asm/rsaz-x86_64.pl | 399 ++++++++++++++++++----------------- 1 file changed, 206 insertions(+), 193 deletions(-) Index: openssl-1.0.2t/crypto/bn/asm/rsaz-x86_64.pl =================================================================== --- openssl-1.0.2t.orig/crypto/bn/asm/rsaz-x86_64.pl +++ openssl-1.0.2t/crypto/bn/asm/rsaz-x86_64.pl @@ -140,7 +140,7 @@ rsaz_512_sqr: # 25-29% faster than rs subq \$128+24, %rsp .Lsqr_body: - movq $mod, %rbp # common argument + movq $mod, %xmm1 # common off-load movq ($inp), %rdx movq 8($inp), %rax movq $n0, 128(%rsp) @@ -158,7 +158,8 @@ $code.=<<___; .Loop_sqr: movl $times,128+8(%rsp) #first iteration - movq %rdx, %rbx + movq %rdx, %rbx # 0($inp) + mov %rax, %rbp # 8($inp) mulq %rdx movq %rax, %r8 movq 16($inp), %rax @@ -197,31 +198,29 @@ $code.=<<___; mulq %rbx addq %rax, %r14 movq %rbx, %rax - movq %rdx, %r15 - adcq \$0, %r15 + adcq \$0, %rdx - addq %r8, %r8 #shlq \$1, %r8 - movq %r9, %rcx - adcq %r9, %r9 #shld \$1, %r8, %r9 + xorq %rcx,%rcx # rcx:r8 = r8 << 1 + addq %r8, %r8 + movq %rdx, %r15 + adcq \$0, %rcx mulq %rax - movq %rax, (%rsp) - addq %rdx, %r8 - adcq \$0, %r9 + addq %r8, %rdx + adcq \$0, %rcx - movq %r8, 8(%rsp) - shrq \$63, %rcx + movq %rax, (%rsp) + movq %rdx, 8(%rsp) #second iteration - movq 8($inp), %r8 movq 16($inp), %rax - mulq %r8 + mulq %rbp addq %rax, %r10 movq 24($inp), %rax movq %rdx, %rbx adcq \$0, %rbx - mulq %r8 + mulq %rbp addq %rax, %r11 movq 32($inp), %rax adcq \$0, %rdx @@ -229,7 +228,7 @@ $code.=<<___; movq %rdx, %rbx adcq \$0, %rbx - mulq %r8 + mulq %rbp addq %rax, %r12 movq 40($inp), %rax adcq \$0, %rdx @@ -237,7 +236,7 @@ $code.=<<___; movq %rdx, %rbx adcq \$0, %rbx - mulq %r8 + mulq %rbp addq %rax, %r13 movq 48($inp), %rax adcq \$0, %rdx @@ -245,7 +244,7 @@ $code.=<<___; movq %rdx, %rbx adcq \$0, %rbx - mulq %r8 + mulq %rbp addq %rax, %r14 movq 56($inp), %rax adcq \$0, %rdx @@ -253,39 +252,39 @@ $code.=<<___; movq %rdx, %rbx adcq \$0, %rbx - mulq %r8 + mulq %rbp addq %rax, %r15 - movq %r8, %rax + movq %rbp, %rax adcq \$0, %rdx addq %rbx, %r15 - movq %rdx, %r8 - movq %r10, %rdx - adcq \$0, %r8 - - add %rdx, %rdx - lea (%rcx,%r10,2), %r10 #shld \$1, %rcx, %r10 - movq %r11, %rbx - adcq %r11, %r11 #shld \$1, %r10, %r11 + adcq \$0, %rdx + + xorq %rbx, %rbx # rbx:r10:r9 = r10:r9 << 1 + addq %r9, %r9 + movq %rdx, %r8 + adcq %r10, %r10 + adcq \$0, %rbx mulq %rax + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rcx, %rax + movq 16($inp), %rbp addq %rax, %r9 + movq 24($inp), %rax adcq %rdx, %r10 - adcq \$0, %r11 + adcq \$0, %rbx movq %r9, 16(%rsp) movq %r10, 24(%rsp) - shrq \$63, %rbx - + #third iteration - movq 16($inp), %r9 - movq 24($inp), %rax - mulq %r9 + mulq %rbp addq %rax, %r12 movq 32($inp), %rax movq %rdx, %rcx adcq \$0, %rcx - mulq %r9 + mulq %rbp addq %rax, %r13 movq 40($inp), %rax adcq \$0, %rdx @@ -293,7 +292,7 @@ $code.=<<___; movq %rdx, %rcx adcq \$0, %rcx - mulq %r9 + mulq %rbp addq %rax, %r14 movq 48($inp), %rax adcq \$0, %rdx @@ -301,9 +300,7 @@ $code.=<<___; movq %rdx, %rcx adcq \$0, %rcx - mulq %r9 - movq %r12, %r10 - lea (%rbx,%r12,2), %r12 #shld \$1, %rbx, %r12 + mulq %rbp addq %rax, %r15 movq 56($inp), %rax adcq \$0, %rdx @@ -311,36 +308,40 @@ $code.=<<___; movq %rdx, %rcx adcq \$0, %rcx - mulq %r9 - shrq \$63, %r10 + mulq %rbp addq %rax, %r8 - movq %r9, %rax + movq %rbp, %rax adcq \$0, %rdx addq %rcx, %r8 - movq %rdx, %r9 - adcq \$0, %r9 + adcq \$0, %rdx - movq %r13, %rcx - leaq (%r10,%r13,2), %r13 #shld \$1, %r12, %r13 + xorq %rcx, %rcx # rcx:r12:r11 = r12:r11 << 1 + addq %r11, %r11 + movq %rdx, %r9 + adcq %r12, %r12 + adcq \$0, %rcx mulq %rax + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rbx, %rax + movq 24($inp), %r10 addq %rax, %r11 + movq 32($inp), %rax adcq %rdx, %r12 - adcq \$0, %r13 + adcq \$0, %rcx movq %r11, 32(%rsp) movq %r12, 40(%rsp) - shrq \$63, %rcx #fourth iteration - movq 24($inp), %r10 - movq 32($inp), %rax + mov %rax, %r11 # 32($inp) mulq %r10 addq %rax, %r14 movq 40($inp), %rax movq %rdx, %rbx adcq \$0, %rbx + mov %rax, %r12 # 40($inp) mulq %r10 addq %rax, %r15 movq 48($inp), %rax @@ -349,9 +350,8 @@ $code.=<<___; movq %rdx, %rbx adcq \$0, %rbx + mov %rax, %rbp # 48($inp) mulq %r10 - movq %r14, %r12 - leaq (%rcx,%r14,2), %r14 #shld \$1, %rcx, %r14 addq %rax, %r8 movq 56($inp), %rax adcq \$0, %rdx @@ -360,32 +360,33 @@ $code.=<<___; adcq \$0, %rbx mulq %r10 - shrq \$63, %r12 addq %rax, %r9 movq %r10, %rax adcq \$0, %rdx addq %rbx, %r9 - movq %rdx, %r10 - adcq \$0, %r10 + adcq \$0, %rdx - movq %r15, %rbx - leaq (%r12,%r15,2),%r15 #shld \$1, %r14, %r15 + xorq %rbx, %rbx # rbx:r13:r14 = r13:r14 << 1 + addq %r13, %r13 + movq %rdx, %r10 + adcq %r14, %r14 + adcq \$0, %rbx mulq %rax + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rcx, %rax addq %rax, %r13 + movq %r12, %rax # 40($inp) adcq %rdx, %r14 - adcq \$0, %r15 + adcq \$0, %rbx movq %r13, 48(%rsp) movq %r14, 56(%rsp) - shrq \$63, %rbx #fifth iteration - movq 32($inp), %r11 - movq 40($inp), %rax mulq %r11 addq %rax, %r8 - movq 48($inp), %rax + movq %rbp, %rax # 48($inp) movq %rdx, %rcx adcq \$0, %rcx @@ -393,97 +394,99 @@ $code.=<<___; addq %rax, %r9 movq 56($inp), %rax adcq \$0, %rdx - movq %r8, %r12 - leaq (%rbx,%r8,2), %r8 #shld \$1, %rbx, %r8 addq %rcx, %r9 movq %rdx, %rcx adcq \$0, %rcx + mov %rax, %r14 # 56($inp) mulq %r11 - shrq \$63, %r12 addq %rax, %r10 movq %r11, %rax adcq \$0, %rdx addq %rcx, %r10 - movq %rdx, %r11 - adcq \$0, %r11 + adcq \$0, %rdx - movq %r9, %rcx - leaq (%r12,%r9,2), %r9 #shld \$1, %r8, %r9 + xorq %rcx, %rcx # rcx:r8:r15 = r8:r15 << 1 + addq %r15, %r15 + movq %rdx, %r11 + adcq %r8, %r8 + adcq \$0, %rcx mulq %rax + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rbx, %rax addq %rax, %r15 + movq %rbp, %rax # 48($inp) adcq %rdx, %r8 - adcq \$0, %r9 + adcq \$0, %rcx movq %r15, 64(%rsp) movq %r8, 72(%rsp) - shrq \$63, %rcx #sixth iteration - movq 40($inp), %r12 - movq 48($inp), %rax mulq %r12 addq %rax, %r10 - movq 56($inp), %rax + movq %r14, %rax # 56($inp) movq %rdx, %rbx adcq \$0, %rbx mulq %r12 addq %rax, %r11 movq %r12, %rax - movq %r10, %r15 - leaq (%rcx,%r10,2), %r10 #shld \$1, %rcx, %r10 adcq \$0, %rdx - shrq \$63, %r15 addq %rbx, %r11 - movq %rdx, %r12 - adcq \$0, %r12 + adcq \$0, %rdx - movq %r11, %rbx - leaq (%r15,%r11,2), %r11 #shld \$1, %r10, %r11 + xorq %rbx, %rbx # rbx:r10:r9 = r10:r9 << 1 + addq %r9, %r9 + movq %rdx, %r12 + adcq %r10, %r10 + adcq \$0, %rbx mulq %rax + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rcx, %rax addq %rax, %r9 + movq %r14, %rax # 56($inp) adcq %rdx, %r10 - adcq \$0, %r11 + adcq \$0, %rbx movq %r9, 80(%rsp) movq %r10, 88(%rsp) #seventh iteration - movq 48($inp), %r13 - movq 56($inp), %rax - mulq %r13 + mulq %rbp addq %rax, %r12 - movq %r13, %rax - movq %rdx, %r13 - adcq \$0, %r13 + movq %rbp, %rax + adcq \$0, %rdx - xorq %r14, %r14 - shlq \$1, %rbx - adcq %r12, %r12 #shld \$1, %rbx, %r12 - adcq %r13, %r13 #shld \$1, %r12, %r13 - adcq %r14, %r14 #shld \$1, %r13, %r14 + xorq %rcx, %rcx # rcx:r12:r11 = r12:r11 << 1 + addq %r11, %r11 + movq %rdx, %r13 + adcq %r12, %r12 + adcq \$0, %rcx mulq %rax + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rbx, %rax addq %rax, %r11 + movq %r14, %rax # 56($inp) adcq %rdx, %r12 - adcq \$0, %r13 + adcq \$0, %rcx movq %r11, 96(%rsp) movq %r12, 104(%rsp) #eighth iteration - movq 56($inp), %rax - mulq %rax - addq %rax, %r13 - adcq \$0, %rdx - - addq %rdx, %r14 + xorq %rbx, %rbx # rbx:r13 = r13 << 1 + addq %r13, %r13 + adcq \$0, %rbx - movq %r13, 112(%rsp) - movq %r14, 120(%rsp) + mulq %rax + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + addq %rcx, %rax + addq %r13, %rax + adcq %rbx, %rdx movq (%rsp), %r8 movq 8(%rsp), %r9 @@ -493,6 +496,10 @@ $code.=<<___; movq 40(%rsp), %r13 movq 48(%rsp), %r14 movq 56(%rsp), %r15 + movq %xmm1, %rbp + + movq %rax, 112(%rsp) + movq %rdx, 120(%rsp) call __rsaz_512_reduce @@ -524,9 +531,9 @@ $code.=<<___; .Loop_sqrx: movl $times,128+8(%rsp) movq $out, %xmm0 # off-load - movq %rbp, %xmm1 # off-load -#first iteration +#first iteration mulx %rax, %r8, %r9 + mov %rax, %rbx mulx 16($inp), %rcx, %r10 xor %rbp, %rbp # cf=0, of=0 @@ -534,40 +541,39 @@ $code.=<<___; mulx 24($inp), %rax, %r11 adcx %rcx, %r9 - mulx 32($inp), %rcx, %r12 + .byte 0xc4,0x62,0xf3,0xf6,0xa6,0x20,0x00,0x00,0x00 # mulx 32($inp), %rcx, %r12 adcx %rax, %r10 - mulx 40($inp), %rax, %r13 + .byte 0xc4,0x62,0xfb,0xf6,0xae,0x28,0x00,0x00,0x00 # mulx 40($inp), %rax, %r13 adcx %rcx, %r11 - .byte 0xc4,0x62,0xf3,0xf6,0xb6,0x30,0x00,0x00,0x00 # mulx 48($inp), %rcx, %r14 + mulx 48($inp), %rcx, %r14 adcx %rax, %r12 adcx %rcx, %r13 - .byte 0xc4,0x62,0xfb,0xf6,0xbe,0x38,0x00,0x00,0x00 # mulx 56($inp), %rax, %r15 + mulx 56($inp), %rax, %r15 adcx %rax, %r14 adcx %rbp, %r15 # %rbp is 0 - mov %r9, %rcx - shld \$1, %r8, %r9 - shl \$1, %r8 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx - adcx %rdx, %r8 - mov 8($inp), %rdx - adcx %rbp, %r9 + mulx %rdx, %rax, $out + mov %rbx, %rdx # 8($inp) + xor %rcx, %rcx + adox %r8, %r8 + adcx $out, %r8 + adox %rbp, %rcx + adcx %rbp, %rcx mov %rax, (%rsp) mov %r8, 8(%rsp) -#second iteration - mulx 16($inp), %rax, %rbx +#second iteration + .byte 0xc4,0xe2,0xfb,0xf6,0x9e,0x10,0x00,0x00,0x00 # mulx 16($inp), %rax, %rbx adox %rax, %r10 adcx %rbx, %r11 - .byte 0xc4,0x62,0xc3,0xf6,0x86,0x18,0x00,0x00,0x00 # mulx 24($inp), $out, %r8 + mulx 24($inp), $out, %r8 adox $out, %r11 + .byte 0x66 adcx %r8, %r12 mulx 32($inp), %rax, %rbx @@ -585,24 +591,25 @@ $code.=<<___; .byte 0xc4,0x62,0xc3,0xf6,0x86,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r8 adox $out, %r15 adcx %rbp, %r8 + mulx %rdx, %rax, $out adox %rbp, %r8 + .byte 0x48,0x8b,0x96,0x10,0x00,0x00,0x00 # mov 16($inp), %rdx - mov %r11, %rbx - shld \$1, %r10, %r11 - shld \$1, %rcx, %r10 - - xor %ebp,%ebp - mulx %rdx, %rax, %rcx - mov 16($inp), %rdx + xor %rbx, %rbx + adox %r9, %r9 + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rcx, %rax + adox %r10, %r10 adcx %rax, %r9 - adcx %rcx, %r10 - adcx %rbp, %r11 + adox %rbp, %rbx + adcx $out, %r10 + adcx %rbp, %rbx mov %r9, 16(%rsp) .byte 0x4c,0x89,0x94,0x24,0x18,0x00,0x00,0x00 # mov %r10, 24(%rsp) - -#third iteration - .byte 0xc4,0x62,0xc3,0xf6,0x8e,0x18,0x00,0x00,0x00 # mulx 24($inp), $out, %r9 + +#third iteration + mulx 24($inp), $out, %r9 adox $out, %r12 adcx %r9, %r13 @@ -610,7 +617,7 @@ $code.=<<___; adox %rax, %r13 adcx %rcx, %r14 - mulx 40($inp), $out, %r9 + .byte 0xc4,0x62,0xc3,0xf6,0x8e,0x28,0x00,0x00,0x00 # mulx 40($inp), $out, %r9 adox $out, %r14 adcx %r9, %r15 @@ -618,27 +625,28 @@ $code.=<<___; adox %rax, %r15 adcx %rcx, %r8 - .byte 0xc4,0x62,0xc3,0xf6,0x8e,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r9 + mulx 56($inp), $out, %r9 adox $out, %r8 adcx %rbp, %r9 + mulx %rdx, %rax, $out adox %rbp, %r9 + mov 24($inp), %rdx - mov %r13, %rcx - shld \$1, %r12, %r13 - shld \$1, %rbx, %r12 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx + xor %rcx, %rcx + adox %r11, %r11 + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rbx, %rax + adox %r12, %r12 adcx %rax, %r11 - adcx %rdx, %r12 - mov 24($inp), %rdx - adcx %rbp, %r13 + adox %rbp, %rcx + adcx $out, %r12 + adcx %rbp, %rcx mov %r11, 32(%rsp) - .byte 0x4c,0x89,0xa4,0x24,0x28,0x00,0x00,0x00 # mov %r12, 40(%rsp) - -#fourth iteration - .byte 0xc4,0xe2,0xfb,0xf6,0x9e,0x20,0x00,0x00,0x00 # mulx 32($inp), %rax, %rbx + mov %r12, 40(%rsp) + +#fourth iteration + mulx 32($inp), %rax, %rbx adox %rax, %r14 adcx %rbx, %r15 @@ -653,25 +661,25 @@ $code.=<<___; mulx 56($inp), $out, %r10 adox $out, %r9 adcx %rbp, %r10 + mulx %rdx, %rax, $out adox %rbp, %r10 + mov 32($inp), %rdx - .byte 0x66 - mov %r15, %rbx - shld \$1, %r14, %r15 - shld \$1, %rcx, %r14 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx + xor %rbx, %rbx + adox %r13, %r13 + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rcx, %rax + adox %r14, %r14 adcx %rax, %r13 - adcx %rdx, %r14 - mov 32($inp), %rdx - adcx %rbp, %r15 + adox %rbp, %rbx + adcx $out, %r14 + adcx %rbp, %rbx mov %r13, 48(%rsp) mov %r14, 56(%rsp) - -#fifth iteration - .byte 0xc4,0x62,0xc3,0xf6,0x9e,0x28,0x00,0x00,0x00 # mulx 40($inp), $out, %r11 + +#fifth iteration + mulx 40($inp), $out, %r11 adox $out, %r8 adcx %r11, %r9 @@ -682,18 +690,19 @@ $code.=<<___; mulx 56($inp), $out, %r11 adox $out, %r10 adcx %rbp, %r11 + mulx %rdx, %rax, $out + mov 40($inp), %rdx adox %rbp, %r11 - mov %r9, %rcx - shld \$1, %r8, %r9 - shld \$1, %rbx, %r8 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx + xor %rcx, %rcx + adox %r15, %r15 + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rbx, %rax + adox %r8, %r8 adcx %rax, %r15 - adcx %rdx, %r8 - mov 40($inp), %rdx - adcx %rbp, %r9 + adox %rbp, %rcx + adcx $out, %r8 + adcx %rbp, %rcx mov %r15, 64(%rsp) mov %r8, 72(%rsp) @@ -706,18 +715,19 @@ $code.=<<___; .byte 0xc4,0x62,0xc3,0xf6,0xa6,0x38,0x00,0x00,0x00 # mulx 56($inp), $out, %r12 adox $out, %r11 adcx %rbp, %r12 + mulx %rdx, %rax, $out adox %rbp, %r12 + mov 48($inp), %rdx - mov %r11, %rbx - shld \$1, %r10, %r11 - shld \$1, %rcx, %r10 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx + xor %rbx, %rbx + adox %r9, %r9 + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rcx, %rax + adox %r10, %r10 adcx %rax, %r9 - adcx %rdx, %r10 - mov 48($inp), %rdx - adcx %rbp, %r11 + adcx $out, %r10 + adox %rbp, %rbx + adcx %rbp, %rbx mov %r9, 80(%rsp) mov %r10, 88(%rsp) @@ -727,31 +737,31 @@ $code.=<<___; adox %rax, %r12 adox %rbp, %r13 - xor %r14, %r14 - shld \$1, %r13, %r14 - shld \$1, %r12, %r13 - shld \$1, %rbx, %r12 - - xor %ebp, %ebp - mulx %rdx, %rax, %rdx - adcx %rax, %r11 - adcx %rdx, %r12 + mulx %rdx, %rax, $out + xor %rcx, %rcx mov 56($inp), %rdx - adcx %rbp, %r13 + adox %r11, %r11 + # rbx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rbx, %rax + adox %r12, %r12 + adcx %rax, %r11 + adox %rbp, %rcx + adcx $out, %r12 + adcx %rbp, %rcx .byte 0x4c,0x89,0x9c,0x24,0x60,0x00,0x00,0x00 # mov %r11, 96(%rsp) .byte 0x4c,0x89,0xa4,0x24,0x68,0x00,0x00,0x00 # mov %r12, 104(%rsp) #eighth iteration mulx %rdx, %rax, %rdx - adox %rax, %r13 - adox %rbp, %rdx + xor %rbx, %rbx + adox %r13, %r13 + # rcx <= 2 and rax <= 0xFFFF..F9, so carry must be zero here + adcx %rcx, %rax + adox %rbp, %rbx + adcx %r13, %rax + adcx %rdx, %rbx - .byte 0x66 - add %rdx, %r14 - - movq %r13, 112(%rsp) - movq %r14, 120(%rsp) movq %xmm0, $out movq %xmm1, %rbp @@ -765,6 +775,9 @@ $code.=<<___; movq 48(%rsp), %r14 movq 56(%rsp), %r15 + movq %rax, 112(%rsp) + movq %rbx, 120(%rsp) + call __rsaz_512_reducex addq 64(%rsp), %r8
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