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Chapter 3 Key Info Types 247
KI_8Byte
KI_8Byte
Purpose:
This KI allows you to specify a generic 8-byte key for a symmetric encryption
algorithm that may be RC2, DES, or any other symmetric algorithm. For DES
encryption, there exist more specific variants of 8-byte key info types:
KI_DES8 and
KI_DES8Strong.
Type of information this allows you to use:
an 8-byte value for symmetric keys such as DES and RC2. Note that KI_DES8Strong is
usually used for a DES key because it sets the DES parity and checks for weak DES
keys.
Format of info supplied to B_SetKeyInfo:
pointer to an unsigned char array that holds the 8 bytes.
Format of info returned by B_GetKeyInfo:
pointer to an unsigned char array that holds the 8 bytes.
Can get this info type if key object already has:
KI_8Byte, KI_Item (if the length of the ITEM is 8), or KI_DES8.