Class DesParameters
java.lang.Object
org.bouncycastle.crypto.internal.params.DesParameters
-
Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic boolean
isWeakKey
(byte[] key, int offset) DES has 16 weak keys.static void
setOddParity
(byte[] bytes) DES Keys use the LSB as the odd parity bit.
-
Field Details
-
DES_KEY_LENGTH
public static final int DES_KEY_LENGTH- See Also:
-
-
Constructor Details
-
DesParameters
public DesParameters()
-
-
Method Details
-
isWeakKey
public static boolean isWeakKey(byte[] key, int offset) DES has 16 weak keys. This method will check if the given DES key material is weak or semi-weak. Key material that is too short is regarded as weak.See "Applied Cryptography" by Bruce Schneier for more information.
- Returns:
- true if the given DES key material is weak or semi-weak, false otherwise.
-
setOddParity
public static void setOddParity(byte[] bytes) DES Keys use the LSB as the odd parity bit. This can be used to check for corrupt keys.- Parameters:
bytes
- the byte array to set the parity on.
-