CKM_DES3_MAC
TIP Some mechanisms in this collection have both a "general" variant and a similarly named variant without "general" in the name. Per the PKCS#11 specification the _GENERAL variant of mechanism accepts a mechanism parameter that is used to define the length of the signature that is returned. The length can typically be any value between 1 and the length of the underlying HASH algorithm.
The variants without _GENERAL do not accept any mechanism parameters and always return a fixed length signature; where the length is defined by the underlying HASH algorithm.
Firmware 7.8.7 and Newer Summary
| FIPS approved? | No |
| Supported functions | Sign | Verify |
| Functions restricted from FIPS use | N/A |
| Minimum key length (bits) | 128 |
| Minimum key length for FIPS use (bits) | N/A |
| Minimum legacy key length for FIPS use (bits) | N/A |
| Maximum key length (bits) | 192 |
| Block size | 8 |
| Digest size | 0 |
| Key types | DES3 |
| Algorithms | DES3 |
| Modes | MAC |
| Flags | Extractable |
NOTE Using Luna HSM Firmware 7.7.0 and newer, 3DES keys have a usage counter attribute (CKA_BYTES_REMAINING) that limits each key instance to encrypting a maximum of 2^16 8-byte blocks of data when the HSM is in FIPS mode (HSM policy 12: Allow non-FIPS algorithms set to
The CKA_BYTES_REMAINING attribute is available when HSM policy 12: Allow non-FIPS algorithms is set to
The attribute is preserved through backup/restore using a Luna Backup HSM 7; restoring the key restores the counter's setting at the time of backup.
The attribute is not preserved through backup/restore using a Luna Backup HSM G5; restoring the key resets the counter to the maximum.
Firmware 7.7.0-7.8.4 Summary
| FIPS approved? | Yes |
| Supported functions | Sign | Verify |
| Functions restricted from FIPS use | Cannot sign |
| Minimum key length (bits) | 128 |
| Minimum key length for FIPS use (bits) | 192 |
| Minimum legacy key length for FIPS use (bits) | 128 |
| Maximum key length (bits) | 192 |
| Block size | 8 |
| Digest size | 0 |
| Key types | DES3 |
| Algorithms | DES3 |
| Modes | MAC |
| Flags | Extractable |
CKM_DES3_MAC is no longer supported for MAC generation when 'HSM Policy (12) Allow Non-FIPS Algorithms' is off.
NOTE To comply with FIPS SP800-131a Rev2 published in March 2019, when the HSM is in FIPS mode, this mechanism is not allowed to sign data.
Firmware 7.4.2 and Older Summary
| FIPS approved? | Yes |
| Supported functions | Sign | Verify |
| Functions restricted from FIPS use | None |
| Minimum key length (bits) | 128 |
| Minimum key length for FIPS use (bits) | 192 |
| Minimum legacy key length for FIPS use (bits) | 128 |
| Maximum key length (bits) | 192 |
| Block size | 8 |
| Digest size | 0 |
| Key types | DES3 |
| Algorithms | DES3 |
| Modes | MAC |
| Flags | Extractable |
