| Key Size (Bits) | Block Size (Bits) | Year of Creation | Status |
DES | 64 | 64 | 1973 | Obsolete |
3DES | 64, 128, 192 | 64 | 1998 | To retire by 2023 |
AES | 128, 192, 256 | 128 | 2001 | Current Standard |