Function at 0x2686a3cc
Capabilities:
Decode data using base64 via winapi
Hash data using sha1
Hash data using sha1 via wincrypt
Hash data via wincrypt
Import public key
Initialize hashing via wincrypt

Disassembly:
mov eax, 0x268eca41
call fcn.268eb4dc
sub esp, 0x24
push edi
push 0xf0000000
push 1
xor edi, edi
push edi
push edi
lea eax, [ebp - 0x18]
push eax
mov dword [ebp - 0x18], edi
call dword [sym.imp.ADVAPI32.dll_CryptAcquireContextW]
test eax, eax
je 0x2686a5b7
push ebx
push esi
push dword [ebp + 0x10]
mov dword [ebp - 0x2c], edi
mov dword [ebp - 0x10], edi
call dword [sym.imp.MSVCRT.dll_wcslen]
mov ebx, dword [sym.imp.CRYPT32.dll_CryptStringToBinaryW]
pop ecx
push edi
push edi
mov esi, eax
lea eax, [ebp - 0x10]
push eax
push edi
push edi
push esi
push dword [ebp + 0x10]
call ebx
test eax, eax
je 0x2686a5a8
push dword [ebp - 0x10]
call dword [sym.imp.MSVCRT.dll_malloc]
cmp eax, edi
pop ecx
mov dword [ebp - 0x28], eax
je 0x2686a5a8
push edi
push edi
lea ecx, [ebp - 0x10]
push ecx
push eax
push edi
push esi
push dword [ebp + 0x10]
mov dword [ebp - 0x20], edi
mov dword [ebp - 0x30], edi
call ebx
test eax, eax
je 0x2686a59e
lea eax, [ebp - 0x30]
push eax
lea eax, [ebp - 0x20]
push eax
push edi
push 0x8000
push dword [ebp - 0x10]
mov esi, 0x10001
push dword [ebp - 0x28]
push 8
push esi
call dword [sym.imp.CRYPT32.dll_CryptDecodeObjectEx]
test eax, eax
je 0x2686a59e
lea eax, [ebp - 0x1c]
push eax
push dword [ebp - 0x20]
mov dword [ebp - 0x1c], edi
push esi
push dword [ebp - 0x18]
call dword [sym.imp.CRYPT32.dll_CryptImportPublicKeyInfo]
test eax, eax
je 0x2686a595
lea eax, [ebp - 0x14]
push eax
push edi
push edi
push 0x8004
push dword [ebp - 0x18]
mov dword [ebp - 0x14], edi
call dword [sym.imp.ADVAPI32.dll_CryptCreateHash]
test eax, eax
je 0x2686a58c
push 0xffffffffffffffff
push 0xffffffffffffffff
push dword [ebp + 8]
lea eax, [ebp - 0x24]
push eax
call fcn.268e6391
add esp, 0x10
mov dword [ebp - 4], edi
mov eax, dword [eax]
cmp eax, edi
mov esi, eax
jne 0x2686a4e4
mov esi, dword [0x269292b0]
push edi
push dword [ebp + 8]
call dword [sym.imp.MSVCRT.dll_wcslen]
pop ecx
push eax
push esi
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_CryptHashData]
or dword [ebp - 4], 0xffffffff
mov esi, dword [ebp - 0x24]
cmp esi, edi
je 0x2686a50d
call fcn.268e5db4
mov dword [ebp - 0x24], edi
push dword [ebp + 0xc]
mov dword [ebp + 0x10], edi
call dword [sym.imp.MSVCRT.dll_wcslen]
pop ecx
push edi
push edi
lea ecx, [ebp + 0x10]
push ecx
push edi
push 1
push eax
push dword [ebp + 0xc]
mov dword [ebp + 8], eax
call ebx
test eax, eax
je 0x2686a583
push dword [ebp + 0x10]
call dword [sym.imp.MSVCRT.dll_malloc]
mov esi, eax
cmp esi, edi
pop ecx
je 0x2686a583
push edi
push edi
lea eax, [ebp + 0x10]
push eax
push esi
push 1
push dword [ebp + 8]
push dword [ebp + 0xc]
call ebx
test eax, eax
je 0x2686a57b
push dword [ebp + 0x10]
call fcn.2686a3a0
pop ecx
push edi
push edi
push dword [ebp - 0x1c]
push dword [ebp + 0x10]
push esi
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_CryptVerifySignatureW]
test eax, eax
je 0x2686a57b
mov dword [ebp - 0x2c], 1
push esi
call dword [sym.imp.MSVCRT.dll_free]
pop ecx
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_CryptDestroyHash]
push dword [ebp - 0x1c]
call dword [sym.imp.ADVAPI32.dll_CryptDestroyKey]
push dword [ebp - 0x20]
call dword [sym.imp.KERNEL32.dll_LocalFree]
push dword [ebp - 0x28]
call dword [sym.imp.MSVCRT.dll_free]
pop ecx
push edi
push dword [ebp - 0x18]
call dword [sym.imp.ADVAPI32.dll_CryptReleaseContext]
mov eax, dword [ebp - 0x2c]
pop esi
pop ebx
mov ecx, dword [ebp - 0xc]
pop edi
mov dword fs:[0], ecx
leave
ret 0xc