Mac

All Known Implementing Classes:

LegacyFullMac, PrfMac
```
public interface Mac
```
Interface for Message Authentication Codes (MAC).
Security guarantees

Message Authentication Codes provide symmetric message authentication. Instances implementing this interface are secure against existential forgery under chosen plaintext attack, and can be deterministic or randomized. This interface should be used for authentication only, and not for other purposes like generation of pseudorandom bytes.

Since:

1.0.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`byte[]`	`computeMac(byte[] data)`	Computes message authentication code (MAC) for `data`.
`void`	`verifyMac(byte[] mac, byte[] data)`	Verifies whether `mac` is a correct authentication code (MAC) for `data`.

- Method Detail
  - computeMac
```
byte[] computeMac(byte[] data)
           throws java.security.GeneralSecurityException
```
    Computes message authentication code (MAC) for data.
    
    Returns:
    
    MAC value
    
    Throws:
    
    java.security.GeneralSecurityException
  - verifyMac
```
void verifyMac(byte[] mac,
               byte[] data)
        throws java.security.GeneralSecurityException
```
    Verifies whether mac is a correct authentication code (MAC) for data.
    
    Throws:
    
    java.security.GeneralSecurityException - if mac is not a correct MAC for data