Using digital signaturesEdit online Use the CCA verbs described in this topic to support digital signatures to authenticate messages. Digital Signature Generate (CSNDDSG)This verb generates a digital signature from hashed input data using an RSA, ECC, or PQC private key, contained in a PKA key token. Digital Signature Verify (CSNDDSV)Use the Digital Signature Verify callable service to verify a digital signature using a PKA public key.Parent topic: CCA verbs