软件加密与硬件加密的区别

1. 软件加密：
顾名思义，软件加密基本上是使用软件保护数据安全的过程。在这种情况下，软件通常安装在主机中，用于加密和解密数据。对于规模较小的公司来说，它更具成本效益。其中，密码是访问数据所需的关键。它通常与系统上的所有其他程序或进程共享处理资源，这些程序或进程可能会影响系统所有其他功能的性能。

示例： LastPass、BitLocker、VeraCrypt、DiskCryptor 等是一些最适合用来保护重要数据安全的软件加密工具。

2. 硬件加密：
硬件加密，顾名思义，基本上是一个使用专用和独立处理器保持数据安全的过程。对于大公司来说，它更具成本效益，因为它不需要任何额外的软件安装。在这种情况下，可以使用密码、指纹等生物识别技术来访问数据。它在大规模环境中提供了更大的吞吐能力和速度。它还包括更快的算法处理、防篡改或防篡改密钥存储以及防止未经授权的代码。

示例：无线接入点或无线基站、信用卡销售点设备、网络批量加密等。

软件加密和硬件加密的区别：

Software Encryption	Hardware Encryption
It simply uses symmetric cryptography where same key is used for encryption and decryption.	It simply uses on-board security of devices to perform encryption and decryption.
It generally allows to encrypt data during backup job, data replication job, or auxiliary copy job.	It generally allows to encrypt data on tape drives that have built-in encryption capabilities.
It is cost-effective and cheap to implement as compared to hardware encryption.	It is costly to implement as compared to software encryption.
It is less secure as compared to hardware encryption.	It is more secure and safer as compared to software encryption because encryption process is separate from rest of machine that makes it much hardware to break or intercept.
Software encryptions systems usually have built-in recovery mechanisms but should set up their recovery options in advance.	Hardware encryption systems does not include additional recovery options.
Its encrypted storage is less expensive than hardware tool.	Its encrypted storage is more expensive than software tool.
It uses computer resources to encrypt data and perform cryptographic operations.	It uses dedicated processor that is physically located on encrypted drive instead of computer processor.
It needs to be reinstalled if OS is changed because software encryption exists in software of machine.	It will remain in place no matter what happens to computer system because hardware encryption exists outside of computer’s software.
It can be copied to different drives or computer if one wants to expand security to other machines.	One has to purchase additional drive with hardware encryption if one wants to expand security because it only covers one drive at a time.
It uses computer processor to handle data encryption and therefore slows down overall system performance.	It runs on its own hardware i.e.; encryption happens within separate processor and therefore has no effect on overall system performance.
It does not require any additional hardware.	It usually requires a separate dedicated processor.
It uses secret key generated from encryption software that runs on PC.	It uses secret key generated from physical attribute of storage device.