CKM_SEED_MAC
Supported Operations
| Encrypt and Decrypt | No | 
| Sign and Verify | Yes | 
| SignRecover and VerifyRecover | No | 
| Digest | No | 
| Generate Key/Key-Pair | No | 
| Wrap and Unwrap | No | 
| Derive | No | 
| Available in FIPS Mode | No | 
Key Size Range (bytes) and Parameters
| Minimum | 16 | 
| Maximum | 16 | 
| Parameter | None | 
Description
SEED-MAC, denoted by CKM_SEED_MAC, is a special case of the general-length SEED-MAC mechanism. SEED-MAC always produces and verifies MACs that are eight bytes in length. It does not have a parameter. 
Constraints on key types and the length of data are summarized in the following table.
| Function | Key Type | Data Length | Signature Length | 
|---|---|---|---|
| C_Sign | CKK_SEED
                                                                     | 
                                                                    any | ½ block size (8 bytes) | 
| C_Verify | CKK_SEED
                                                                     | 
                                                                    any | ½ block size (8 bytes) | 
Return to ProtectToolkit-C Mechanisms