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.

Table 1: SEED-MAC: Key and Data Length

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)

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