BlackBox uses 56-bit DES by default but other algorithms (eg Blowfish, RC4, CAST) are available for free from the BlackBox engine library .

• 暗箱利用56位元万默认，但其他算法（如河豚，的RC4 ，铸） ，可免费从暗箱发动机图书馆 。A free BlackBox SDK is also available for developers who want to integrate their own algorithm(s) into BlackBox.；一个自由的暗箱SDK是，也可用于开发者，要结合自己的算法（ ）进入暗箱。