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sodium_crypto_auth

sodium_crypto_auth

Compute a tag for the message

string **sodium_crypto_auth** string $message string $key

Symmetric message authentication via provides integrity, but not confidentiality. sodium_crypto_auth

Unlike with digital signatures (e.g. ), any party capable of verifying a message is also capable of authenticating their own messages. (Hence, symmetric authentication.) sodium_crypto_sign_detached

messageThe message you intend to authenticate

keyAuthentication key

Authentication tag