Function at 0x421a10
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ebx
push edi
push esi
mov ebx, dword [ebp + 0x14]
mov edi, dword [ebp + 0xc]
mov esi, dword [ebp + 8]
call fcn.00419a90
sub esp, 8
push eax
test ebx, ebx
sets al
mov ecx, ebx
sub ecx, 1
sete cl
or al, cl
mov ecx, ebx
sub ecx, 0x25
setge cl
or al, cl
test al, 1
jne 0x421a47
jmp 0x421a4c
jmp 0x421bd4
mov ecx, edi
mov eax, dword [ebp + 0x10]
add ecx, eax
add ecx, 0xffffffff
mov byte [edi + eax - 1], 0
cmp esi, 0
sete al
test al, 1
jne 0x421a67
jmp 0x421a77
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], 0x30
jmp 0x421a72
jmp 0x421bd4
cmp ebx, 0xa
sete al
test al, 1
jne 0x421a86
jmp 0x421b22
jmp 0x421a88
cmp esi, 0x64
setae al
test al, 1
jne 0x421a94
jmp 0x421ace
mov edi, 0x64
mov eax, esi
xor edx, edx
div edi
shl edx, 1
mov al, byte [edx + 0x4472bd]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
mov al, byte [edx + str.00010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899]
add edi, 0xffffffff
mov byte [ecx - 2], al
mov ecx, 0x64
mov eax, esi
xor edx, edx
div ecx
mov esi, eax
mov ecx, edi
jmp 0x421a88
cmp esi, 0xa
jae 0x421ae4
mov al, byte [esi + str.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
jmp 0x421b1d
mov edx, esi
and edx, 0xfffffffd
mov eax, esi
or eax, 0xfffffffd
xor eax, 0xffffffff
imul eax, edx
mov edx, esi
and edx, 2
or esi, 2
imul esi, edx
add esi, eax
mov al, byte [esi + 0x4472bd]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
mov al, byte [esi + str.00010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899]
add edi, 0xffffffff
mov byte [ecx - 2], al
jmp 0x421bd4
cmp ebx, 0x10
sete al
test al, 1
jne 0x421b30
jmp 0x421b2e
jmp 0x421baa
jmp 0x421b32
cmp esi, 0x100
setae al
test al, 1
jne 0x421b41
jmp 0x421b6d
mov eax, esi
and eax, 0xff
shl eax, 1
mov dl, byte [eax + 0x447386]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], dl
mov al, byte [eax + str.000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF]
add edi, 0xffffffff
mov byte [ecx - 2], al
shr esi, 8
mov ecx, edi
jmp 0x421b32
cmp esi, 0x10
setb al
test al, 1
jne 0x421b79
jmp 0x421b8a
mov al, byte [esi + str.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
jmp 0x421bd4
shl esi, 1
mov al, byte [esi + 0x447386]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
mov al, byte [esi + str.000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF]
add edi, 0xffffffff
mov byte [ecx - 2], al
jmp 0x421bd4
cmp esi, 0
jbe 0x421bd0
mov eax, esi
xor edx, edx
div ebx
mov al, byte [edx + str.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ]
mov edi, ecx
add edi, 0xffffffff
mov byte [ecx - 1], al
mov eax, esi
xor edx, edx
div ebx
mov esi, eax
mov ecx, edi
jmp 0x421baa
mov edi, ecx
jmp 0x421bd4
mov eax, edi
lea esp, [ebp - 0xc]
pop esi
pop edi
pop ebx
pop ebp
ret