How Is Encryption Different From Hashing?
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Encryption is a two-way process, meaning it can be used to both encrypt and decrypt data, while hashing is a one-way process that produces a unique output (usually called a hash value or digest) when applied to a set of data. Hashing makes it impossible to retrieve the original data from the output, whereas encryption is reversible and can be used to retrieve the original data from the encrypted form. In addition, encryption is used to protect data from unauthorized access, while hashing is used to verify the integrity of data.
Encryption and hashing are both techniques used to protect data. The main difference between the two is that encryption is a two–way process, meaning it can be reversed to retrieve the original data, while hashing is one–way and irreversible. Hashing is also designed to detect any changes to the original data, whereas encryption does not check for alterations. Additionally, encryption will usually produce a longer output, while hashing produces a fixed–length output. As a result, hashing is typically used to verify the integrity of data, while encryption is used to secure data.