diff --git a/lib/std/crypto/aes.zig b/lib/std/crypto/aes.zig
index 08c289e972..b8425f02c9 100644
--- a/lib/std/crypto/aes.zig
+++ b/lib/std/crypto/aes.zig
@@ -13,8 +13,6 @@ fn rotw(w: u32) u32 {
     return w << 8 | w >> 24;
 }
 
-// TODO: encrypt and decrypt could probably be unified
-
 // Encrypt one block from src into dst, using the expanded key xk.
 fn encryptBlock(xk: []const u32, dst: []u8, src: []const u8) void {
     var s0 = mem.readIntSliceBig(u32, src[0..4]);
@@ -270,8 +268,6 @@ test "expand key" {
 
 // constants
 
-// TODO: generate these at comptime?
-
 const poly = 1 << 8 | 1 << 4 | 1 << 3 | 1 << 1 | 1 << 0;
 
 var powx = [16]u8{