cryptographic primitive

Definition

Cryptographic primitives are well-established, low-level cryptographic algorithms that are frequently used to build cryptographic protocols for computer security systems. These routines include, but are not limited to, one-way hash functions and encryption functions.
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KERI related

In KERI and ACDC it a serialization of a unitary value associated with a cryptographic operation including but not limited to a digest (hash), a salt, a seed, a private key, a public key, or a signature. All primitives in KERI MUST be expressed in CESR.

See also

The more general term primitive.