SHA256
This class implements the cryptographic hash function SHA-256.
| Methods |
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| static byte[] |
getHMAC(byte[] key, byte[] message)
Calculate the hash-based message authentication code.
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| static byte[] |
getHMAC(byte[] key, byte[] message)
Calculate the hash-based message authentication code.
Parameters:
key - the key
message - the message
Returns:
the hash
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| static byte[] |
getHash(byte[] data, boolean nullData)
Calculate the hash code for the given data.
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| static byte[] |
getHash(byte[] data, boolean nullData)
Calculate the hash code for the given data.
Parameters:
data - the data to hash
nullData - if the data should be filled with zeros after calculating
the hash code
Returns:
the hash code
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| static byte[] |
getHashWithSalt(byte[] data, byte[] salt)
Calculate the hash code by using the given salt.
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| static byte[] |
getHashWithSalt(byte[] data, byte[] salt)
Calculate the hash code by using the given salt. The salt is appended
after the data before the hash code is calculated. After generating the
hash code, the data and all internal buffers are filled with zeros to
avoid keeping insecure data in memory longer than required (and possibly
swapped to disk).
Parameters:
data - the data to hash
salt - the salt to use
Returns:
the hash code
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| static byte[] |
getKeyPasswordHash(String userName, char[] password)
Calculate the hash of a password by prepending the user name and a '@'
character.
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| static byte[] |
getKeyPasswordHash(String userName, char[] password)
Calculate the hash of a password by prepending the user name and a '@'
character. Both the user name and the password are encoded to a byte
array using UTF-16. After generating the hash code, the password array
and all internal buffers are filled with zeros to avoid keeping the plain
text password in memory longer than required (and possibly swapped to
disk).
Parameters:
userName - the user name
password - the password
Returns:
the hash code
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| static byte[] |
getPBKDF2(byte[] password, byte[] salt, int iterations, int resultLen)
Calculate the hash using the password-based key derivation function 2.
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| static byte[] |
getPBKDF2(byte[] password, byte[] salt, int iterations, int resultLen)
Calculate the hash using the password-based key derivation function 2.
Parameters:
password - the password
salt - the salt
iterations - the number of iterations
resultLen - the number of bytes in the result
Returns:
the result
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