Function at 0x1400191c0
Capabilities:
Encode data using base64

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x20], rsi
push rdi
sub rsp, 0x40
mov rax, qword [0x1400c9438]
xor rax, rsp
mov qword [rsp + 0x30], rax
mov rbx, rdx
mov rdi, rcx
mov qword [rsp + 0x28], rcx
mov qword [rsp + 0x28], rdx
mov rsi, qword [rdx + 0x10]
lea rcx, [rsi + 2]
movabs rax, 0xaaaaaaaaaaaaaaab
mul rcx
shr rdx, 1
shl rdx, 2
xor r8d, r8d
mov rcx, rdi
call fcn.140021f00
mov r8, rdi
cmp qword [rdi + 0x18], 0x10
jb 0x140019222
mov r8, qword [rdi]
xor edx, edx
lea r10, [rsi - 2]
lea r11, str.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_
test r10, r10
je 0x140019310
nop dword [rax + rax]
mov rax, rbx
cmp qword [rbx + 0x18], 0x10
jb 0x14001924d
mov rax, qword [rbx]
movzx eax, byte [rax + rdx]
shr rax, 2
movzx eax, byte [rax + r11]
mov byte [r8], al
cmp qword [rbx + 0x18], 0x10
jb 0x14001926c
mov r9, qword [rbx]
add r9, rdx
jmp 0x140019275
lea r9, [rbx + rdx]
mov rax, rbx
jb 0x140019278
mov rax, qword [rbx]
movsx rcx, byte [r9]
and ecx, 3
shl rcx, 4
movzx eax, byte [rax + rdx + 1]
shr rax, 4
or rcx, rax
movzx eax, byte [rcx + r11]
mov byte [r8 + 1], al
mov r9, qword [rbx + 0x18]
cmp r9, 0x10
jb 0x1400192ad
mov rcx, qword [rbx]
inc rcx
add rcx, rdx
jmp 0x1400192bd
lea rcx, [rbx + 1]
add rcx, rdx
mov rax, rbx
cmp r9, 0x10
jb 0x1400192c0
mov rax, qword [rbx]
movsx rcx, byte [rcx]
and ecx, 0xf
shl rcx, 2
movzx eax, byte [rax + rdx + 2]
shr rax, 6
or rcx, rax
movzx eax, byte [rcx + r11]
mov byte [r8 + 2], al
mov rax, rbx
cmp qword [rbx + 0x18], 0x10
jb 0x1400192ed
mov rax, qword [rbx]
movsx rax, byte [rax + rdx + 2]
and eax, 0x3f
movzx eax, byte [rax + r11]
mov byte [r8 + 3], al
add r8, 4
add rdx, 3
cmp rdx, r10
jb 0x140019240
cmp rdx, rsi
jae 0x1400193c6
mov rax, rbx
cmp qword [rbx + 0x18], 0x10
jb 0x140019326
mov rax, qword [rbx]
movzx eax, byte [rax + rdx]
shr rax, 2
movzx eax, byte [rax + r11]
mov byte [r8], al
lea rax, [rsi - 1]
cmp rdx, rax
jne 0x140019368
mov rax, rbx
cmp qword [rbx + 0x18], 0x10
jb 0x14001934c
mov rax, qword [rbx]
movsx rax, byte [rax + rdx]
and eax, 3
add rax, rax
movzx eax, byte [r11 + rax*8]
mov byte [r8 + 1], al
mov al, 0x3d
add r8, 2
jmp 0x1400193be
cmp qword [rbx + 0x18], 0x10
jb 0x140019378
mov rax, qword [rbx]
lea rcx, [rdx + rax]
jmp 0x14001937f
lea rcx, [rdx + rbx]
mov rax, rbx
movsx rcx, byte [rcx]
and ecx, 3
shl rcx, 4
movzx eax, byte [rax + rdx + 1]
shr rax, 4
or rcx, rax
movzx eax, byte [rcx + r11]
mov byte [r8 + 1], al
add r8, 2
mov rax, rbx
cmp qword [rbx + 0x18], 0x10
jb 0x1400193b0
mov rax, qword [rbx]
movsx rax, byte [rax + rdx + 1]
and eax, 0xf
movzx eax, byte [r11 + rax*4]
mov byte [r8], al
mov byte [r8 + 1], 0x3d
mov rdx, qword [rbx + 0x18]
cmp rdx, 0x10
jb 0x1400193fc
inc rdx
mov rcx, qword [rbx]
cmp rdx, 0x1000
jb 0x1400193f7
add rdx, 0x27
mov r8, qword [rcx - 8]
sub rcx, r8
lea rax, [rcx - 8]
cmp rax, 0x1f
ja 0x14001942f
mov rcx, r8
call fcn.140079384
mov qword [rbx + 0x10], 0
mov qword [rbx + 0x18], select
mov byte [rbx], 0
mov rax, rdi
mov rcx, qword [rsp + 0x30]
xor rcx, rsp
call fcn.1400790d0
mov rbx, qword [rsp + 0x60]
mov rsi, qword [rsp + 0x68]
add rsp, 0x40
pop rdi
ret
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3