Policy
Set CNG cipher key length
This policy setting allows you to configure the number of bits to use when creating the cipher key. This number will be rounded down to a multiple of 8. If you enable this policy setting, the key bits specified will be used. If you disable or do not configure this policy setting, the default value will be used.
PackMicrosoft Office
CategoryMicrosoft Excel 2016 / Excel Options / Security / Cryptography
Policy ID
2e543e8f3d16Internal name
L_SetCNGCipherKeyLengthRegistry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\excel\security\crypto\cipherkeybitsPolicy notes
This policy setting allows you to configure the number of bits to use when creating the cipher key. This number will be rounded down to a multiple of 8. If you enable this policy setting, the key bits specified will be used. If you disable or do not configure this policy setting, the default value will be used.