PsaVerifyMessage

Verify the signature of a message using a public key. Opcode: 25 (0x0019)

Parameters

Name	Type	Description
`key_name`	String	Name of the key to use for the operation
`alg`	`AsymmetricSignature`	An asymmetric signature algorithm that separates the message and sign operations that is compatible with the type of key
`message`	Vector of bytes	The message whose signature is to be verified
`signature`	Vector of bytes	Buffer containing the signature to verify

key_name must be the name of a public key or an asymmetric key pair. The key must allow the usage flag verify_message.

No values are returned by this operation. If Success is returned the signature is valid.

PsaErrorNotPermitted: The key does not have the verify_message flag, or it does not permit the requested algorithm.
PsaErrorInvalidSignature: The calculation was performed successfully, but the passed signature is not a valid signature.

This function will verify the signature of a message with a public key, using a hash-and-sign verification algorithm.