AES internal fixed-length key-token flag byte
The format for an AES internal fixed-length key token flag byte.
Table 1 shows the format for an AES internal fixed-length key token flag byte.
| Bits (MSB...LSB)1 | Description |
|---|---|
| 1xxx xxxx | Key is encrypted under the AES master-key (ignored if no key present). |
| 0xxx xxxx | Key is in the clear (ignored if no key present). |
| x1xx xxxx | Control vector (CV) is present. |
| x0xx xxxx | Control vector (CV) is not present. |
| xx1x xxxx | No key and no MKVP present. |
| xx0x xxxx | Encrypted or clear key present, MKVP present if key is encrypted. |
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Note: All undefined bits are reserved and must be 0.
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