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(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_sign — Sign a message
$message, string $secret_key): string
Sign a message with a secret key, that can be verified by the corresponding public key. This function attaches the signature to the message. See sodium_crypto_sign_detached() for detached signatures.
message
Message to sign.
secret_key
Secret key. See sodium_crypto_sign_secretkey()
Signed message (not encrypted).
