Function at 0x551260
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x2c
call fcn.005e0210
push ebx
push ebp
push esi
push edi
mov edi, dword [esp + 0x50]
mov eax, edi
shl eax, 4
add eax, 6
mov dword [esp + 0x30], 0
mov dword [esp + 0x14], 0
mov dword [esp + 0x28], 0
cmp eax, 0x1555555
ja 0x5519b1
imul esi, edi, 0x600
push 0x273
push str.cryptoececp_nistz256.c
lea eax, [esi + 0x220]
push eax
call fcn.00451c10
mov ebx, eax
add esp, 0xc
mov dword [esp + 0x1c], ebx
test ebx, ebx
je 0x5519b3
mov eax, edi
push 0x275
shl eax, 5
add eax, edi
push str.cryptoececp_nistz256.c
push eax
call fcn.00451c10
add esp, 0xc
mov dword [esp + 0x14], eax
test eax, eax
je 0x5519b3
push 0x276
lea eax, [edi*4]
push str.cryptoececp_nistz256.c
push eax
call fcn.00451c10
mov ecx, eax
add esp, 0xc
mov dword [esp + 0x28], ecx
test ecx, ecx
je 0x5519b3
mov eax, ebx
mov dword [esp + 0x24], 0
and eax, 0xffffffc0
add eax, 0x40
add esi, eax
mov dword [esp + 0x18], eax
test edi, edi
je 0x551633
mov edi, dword [esp + 0x48]
mov ebx, eax
mov eax, dword [esp + 0x14]
add eax, 2
mov dword [esp + 0x20], 0
mov dword [esp + 0x34], eax
mov eax, ecx
sub eax, edi
mov dword [esp + 0x10], ebx
sub dword [esp + 0x4c], edi
mov dword [esp + 0x38], eax
nop
push dword [edi]
call fcn.004624d0
add esp, 4
cmp eax, 0x100
jg 0x551387
push dword [edi]
call fcn.00462380
add esp, 4
test eax, eax
jne 0x551387
mov ebp, dword [edi]
mov dword [esp + 0x2c], ebp
jmp 0x5513bf
push dword [esp + 0x54]
call fcn.004a2540
mov ebp, eax
add esp, 4
mov dword [esp + 0x2c], ebp
test ebp, ebp
je 0x5519ab
mov eax, dword [esp + 0x40]
push dword [esp + 0x54]
push dword [eax + 8]
push dword [edi]
push ebp
call fcn.0051d0e0
add esp, 0x10
test eax, eax
je 0x551981
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x28]
push dword [esp + 0x2c]
mov dword [ecx + eax*4], ebp
xor ebp, ebp
call fcn.00461dc0
shl eax, 2
add esp, 4
test eax, eax
jle 0x55143f
mov edi, dword [esp + 0x34]
mov ebx, dword [esp + 0x38]
add edi, dword [esp + 0x20]
add ebx, dword [esp + 0x48]
nop
push dword [ebx]
call fcn.00456550
mov ecx, ebp
test ecx, ecx
jns 0x551400
add ecx, 3
sar ecx, 2
mov ecx, dword [eax + ecx*4]
lea edi, [edi + 4]
mov eax, ecx
mov byte [edi - 6], cl
shr eax, 8
add ebp, 4
mov byte [edi - 5], al
mov eax, ecx
shr eax, 0x10
shr ecx, 0x18
mov byte [edi - 4], al
mov byte [edi - 3], cl
push dword [ebx]
call fcn.00461dc0
shl eax, 2
add esp, 8
cmp ebp, eax
jl 0x5513f0
mov ebx, dword [esp + 0x10]
cmp ebp, 0x21
jge 0x55145c
mov ecx, dword [esp + 0x20]
mov eax, 0x21
sub eax, ebp
add ecx, ebp
add ecx, dword [esp + 0x14]
push eax
push 0
push ecx
call fcn.005e1d60
add esp, 0xc
mov edi, dword [esp + 0x4c]
add edi, dword [esp + 0x48]
push 8
mov eax, dword [edi]
push dword [eax + 8]
push esi
call fcn.0053cc90
add esp, 0xc
test eax, eax
je 0x551951
mov eax, dword [edi]
push 8
push dword [eax + 0xc]
lea eax, [esi + 0x20]
push eax
call fcn.0053cc90
add esp, 0xc
test eax, eax
je 0x551951
mov eax, dword [edi]
push 8
push dword [eax + 0x10]
lea eax, [esi + 0x40]
push eax
call fcn.0053cc90
add esp, 0xc
test eax, eax
je 0x551951
push 1
push esi
push ebx
call fcn.00448080
lea edi, [esi + 0x60]
push esi
push edi
call fcn.00448560
push 2
push edi
push ebx
call fcn.00448080
push esi
lea ebp, [esi + 0xc0]
push edi
push ebp
call fcn.00448760
push 3
push ebp
push ebx
call fcn.00448080
push edi
push edi
call fcn.00448560
add esp, 0x40
push 4
push edi
push ebx
call fcn.00448080
push ebp
push ebp
call fcn.00448560
push 6
push ebp
push ebx
call fcn.00448080
push esi
lea ebx, [esi + 0x120]
push edi
push ebx
call fcn.00448760
push 5
push ebx
push dword [esp + 0x44]
call fcn.00448080
push esi
lea edi, [esi + 0x180]
push ebp
push edi
call fcn.00448760
add esp, 0x44
push 7
push edi
push dword [esp + 0x18]
call fcn.00448080
lea eax, [esi + 0x60]
push eax
push eax
call fcn.00448560
push 8
lea eax, [esi + 0x60]
push eax
push dword [esp + 0x2c]
call fcn.00448080
push ebp
push ebp
call fcn.00448560
push 0xc
push ebp
push dword [esp + 0x40]
call fcn.00448080
push ebx
push ebx
call fcn.00448560
push 0xa
push ebx
push dword [esp + 0x54]
call fcn.00448080
add esp, 0x48
push edi
push edi
call fcn.00448560
push 0xe
push edi
push dword [esp + 0x20]
call fcn.00448080
push esi
push ebp
push ebp
call fcn.00448760
push 0xd
push ebp
push dword [esp + 0x38]
call fcn.00448080
push esi
push ebx
push ebx
call fcn.00448760
push 0xb
push ebx
mov ebx, dword [esp + 0x50]
push ebx
call fcn.00448080
add esp, 0x44
push esi
push edi
push edi
call fcn.00448760
push 0xf
push edi
push ebx
call fcn.00448080
push esi
lea ebx, [esi + 0x60]
push ebx
push ebp
call fcn.00448760
push 9
push ebp
push dword [esp + 0x3c]
call fcn.00448080
push ebx
push ebx
call fcn.00448560
push 0x10
push ebx
mov ebx, dword [esp + 0x50]
push ebx
call fcn.00448080
mov ebp, dword [esp + 0x68]
add ebx, 0x600
mov edi, dword [esp + 0x8c]
inc ebp
add dword [esp + 0x64], 0x21
add edi, 4
add esp, 0x44
mov dword [esp + 0x24], ebp
mov dword [esp + 0x10], ebx
mov dword [esp + 0x48], edi
cmp ebp, dword [esp + 0x50]
jb 0x551360
mov edi, dword [esp + 0x50]
mov eax, dword [esp + 0x14]
mov ebp, 0xff
mov dword [esp + 0x20], ebp
movzx ecx, byte [eax + 0x1f]
shr ecx, 6
mov eax, ecx
and ecx, 1
shr eax, 1
add eax, ecx
push eax
push dword [esp + 0x1c]
push esi
call fcn.004480d0
movups xmm0, xmmword [esi]
mov ebx, dword [esp + 0x50]
add esp, 0xc
movups xmmword [ebx], xmm0
movups xmm0, xmmword [esi + 0x10]
movups xmmword [ebx + 0x10], xmm0
movups xmm0, xmmword [esi + 0x20]
movups xmmword [ebx + 0x20], xmm0
movups xmm0, xmmword [esi + 0x30]
movups xmmword [ebx + 0x30], xmm0
movups xmm0, xmmword [esi + 0x40]
movups xmmword [ebx + 0x40], xmm0
movups xmm0, xmmword [esi + 0x50]
movups xmmword [ebx + 0x50], xmm0
xor eax, eax
cmp ebp, 0xff
sete al
cmp eax, edi
jae 0x5517f5
lea edx, [ebp - 1]
mov ebp, eax
mov ecx, edx
shl ebp, 5
and ecx, 7
shr edx, 3
mov dword [esp + 0x38], ecx
add ebp, eax
imul ecx, eax, 0x600
mov dword [esp + 0x34], edx
add ecx, dword [esp + 0x18]
sub edi, eax
mov dword [esp + 0x24], ecx
mov dword [esp + 0x2c], edi
mov ecx, dword [esp + 0x14]
lea eax, [edx + ebp]
movzx edx, byte [eax + ecx + 1]
movzx eax, byte [eax + ecx]
mov ecx, dword [esp + 0x38]
shl edx, 8
or edx, eax
shr edx, cl
mov ecx, 0x3f
and edx, 0x3f
mov eax, edx
sub ecx, edx
shr eax, 5
dec eax
mov edi, eax
and eax, edx
not edi
and ecx, edi
or ecx, eax
mov eax, ecx
and ecx, 1
shr eax, 1
add eax, ecx
and eax, 0x7fffffff
push eax
push dword [esp + 0x28]
push esi
call fcn.004480d0
lea eax, [esi + 0x20]
push eax
lea eax, [esi + 0x80]
push eax
call fcn.004473a0
mov eax, dword [esi + 0x20]
and edi, 1
neg edi
mov edx, edi
mov ecx, edi
and ecx, dword [esi + 0x80]
not edx
and eax, edx
xor ecx, eax
mov dword [esi + 0x20], ecx
mov ecx, edx
and ecx, dword [esi + 0x24]
mov eax, dword [esi + 0x84]
and eax, edi
xor ecx, eax
mov eax, edi
mov dword [esi + 0x24], ecx
and eax, dword [esi + 0x88]
mov ecx, dword [esi + 0x28]
and ecx, edx
xor ecx, eax
mov dword [esi + 0x28], ecx
mov ecx, edi
and ecx, dword [esi + 0x8c]
mov eax, dword [esi + 0x2c]
and eax, edx
xor ecx, eax
mov dword [esi + 0x2c], ecx
mov ecx, edx
and ecx, dword [esi + 0x30]
mov eax, dword [esi + 0x90]
and eax, edi
xor ecx, eax
mov dword [esi + 0x30], ecx
mov ecx, dword [esi + 0x34]
mov eax, dword [esi + 0x94]
and ecx, edx
and eax, edi
xor ecx, eax
mov eax, edi
mov dword [esi + 0x34], ecx
mov ecx, edx
and ecx, dword [esi + 0x38]
and eax, dword [esi + 0x98]
xor ecx, eax
mov dword [esi + 0x38], ecx
mov ecx, dword [esi + 0x3c]
and ecx, edx
mov eax, dword [esi + 0x9c]
push esi
and eax, edi
xor ecx, eax
push ebx
push ebx
mov dword [esi + 0x3c], ecx
call fcn.00448760
add dword [esp + 0x44], 0x600
lea ebp, [ebp + 0x21]
mov edx, dword [esp + 0x54]
add esp, 0x20
sub dword [esp + 0x2c], 1
jne 0x5516d1
mov ebp, dword [esp + 0x20]
mov edi, dword [esp + 0x50]
push ebx
sub ebp, 5
push ebx
mov dword [esp + 0x28], ebp
call fcn.00448560
push ebx
push ebx
call fcn.00448560
push ebx
push ebx
call fcn.00448560
push ebx
push ebx
call fcn.00448560
push ebx
push ebx
call fcn.00448560
add esp, 0x28
cmp ebp, 5
jae 0x551690
test edi, edi
je 0x551943
mov eax, dword [esp + 0x14]
lea ebp, [esi + 0x20]
mov dword [esp + 0x2c], eax
nop
movzx edx, byte [eax]
mov ecx, 0x3f
and edx, 0x1f
add edx, edx
mov eax, edx
sub ecx, edx
shr eax, 5
dec eax
mov edi, eax
and eax, edx
not edi
and ecx, edi
or ecx, eax
mov eax, ecx
and ecx, 1
shr eax, 1
add eax, ecx
and eax, 0x7fffffff
push eax
push dword [esp + 0x1c]
push esi
call fcn.004480d0
lea eax, [esi + 0x80]
push ebp
push eax
call fcn.004473a0
mov eax, dword [ebp]
and edi, 1
neg edi
mov edx, edi
mov ecx, edi
and ecx, dword [esi + 0x80]
not edx
and eax, edx
xor ecx, eax
mov dword [ebp], ecx
mov ecx, edx
and ecx, dword [ebp + 4]
mov eax, dword [esi + 0x84]
and eax, edi
xor ecx, eax
mov dword [ebp + 4], ecx
mov ecx, edx
and ecx, dword [esi + 0x28]
mov eax, dword [esi + 0x88]
and eax, edi
xor ecx, eax
mov eax, edi
mov dword [esi + 0x28], ecx
mov ecx, edx
and ecx, dword [esi + 0x2c]
and eax, dword [esi + 0x8c]
xor ecx, eax
mov dword [esi + 0x2c], ecx
mov ecx, edi
and ecx, dword [esi + 0x90]
mov eax, dword [esi + 0x30]
and eax, edx
xor ecx, eax
mov dword [esi + 0x30], ecx
mov ecx, dword [esi + 0x34]
mov eax, dword [esi + 0x94]
and ecx, edx
and eax, edi
xor ecx, eax
mov eax, edi
mov dword [esi + 0x34], ecx
mov ecx, edx
and ecx, dword [esi + 0x38]
and eax, dword [esi + 0x98]
xor ecx, eax
mov dword [esi + 0x38], ecx
and edx, dword [esi + 0x3c]
and edi, dword [esi + 0x9c]
push esi
xor edx, edi
push ebx
push ebx
mov dword [esi + 0x3c], edx
call fcn.00448760
add esp, 0x20
mov eax, dword [esp + 0x2c]
add dword [esp + 0x18], 0x600
add eax, 0x21
sub dword [esp + 0x50], 1
mov dword [esp + 0x2c], eax
jne 0x551840
mov ebx, dword [esp + 0x1c]
mov dword [esp + 0x30], 1
jmp 0x5519b3
call fcn.00457560
push str.ecp_nistz256_windowed_mul
push 0x2a2
push str.cryptoececp_nistz256.c
call fcn.00457660
push 0
push 0x92
push 0x10
call fcn.00457770
mov ebx, dword [esp + 0x34]
add esp, 0x18
jmp 0x5519b3
call fcn.00457560
push str.ecp_nistz256_windowed_mul
push 0x286
push str.cryptoececp_nistz256.c
call fcn.00457660
push 0
push 0x80003
push 0x10
call fcn.00457770
add esp, 0x18
mov ebx, dword [esp + 0x1c]
jmp 0x5519b3
xor ebx, ebx
push 0x304
push str.cryptoececp_nistz256.c
push ebx
call fcn.00451ca0
push 0x305
push str.cryptoececp_nistz256.c
push dword [esp + 0x28]
call fcn.00451ca0
push 0x306
push str.cryptoececp_nistz256.c
push dword [esp + 0x48]
call fcn.00451ca0
mov eax, dword [esp + 0x54]
add esp, 0x24
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x2c
ret