15 years helping British businesses
choose better software

Secret-key Cryptography

Secret-key cryptography (also known as symmetric-key cryptography) is a secure communication method that requires a single key that encrypts and decrypts messages between two parties. To reveal the secret key, one of the parties must communicate with the other over a channel separate from the one that contains the encrypted text.

What Small and Midsize Businesses Need to Know About Secret-key Cryptography

Despite limitations, secret-key systems allow SMBs to encrypt and decrypt confidential messages between departments, allowing them to protect sensitive information.

Related terms