Key generator

For programs which generate software license keys, see Keygen.
Not to be confused with Key generation.

A key generator (or keygen) in cryptography is a protocol or algorithm used to generate a sequence with pseudo-random characteristics for use as an encryption key. The generated sequence is used as an encryption key at one end of communication and as a decryption key at the other.

Key generators can be implemented in systems designed to generate, distribute, and authenticate keys for public key cryptography, where without the private key, one cannot access information encrypted with the public key.

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