H2 Database Engine 2.3.232 · org.h2.security.SHA256 · APIdia, the JavaDoc alternative

Access	Constructor and Description
private	SHA256()

Method Summary

Modifier and Type	Method and Description
public static byte[]	Returns: the hash code getHash(byte[] the data to hash data, boolean if the data should be filled with zeros after calculating the hash code nullData) Calculate the hash code for the given data.
public static byte[]	Returns: the hash code getHashWithSalt(byte[] the data to hash data, byte[] the salt to use salt) Calculate the hash code by using the given salt.
public static byte[]	Returns: the hash getHMAC(byte[] the key key, byte[] the message message) Calculate the hash-based message authentication code.
public static byte[]	Returns: the hash code getKeyPasswordHash(String the user name userName, char[] the password password) Calculate the hash of a password by prepending the user name and a '@' character.
public static byte[]	Returns: the result getPBKDF2(byte[] the password password, byte[] the salt salt, int the number of iterations iterations, int the number of bytes in the result resultLen) Calculate the hash using the password-based key derivation function 2.
private static Mac	initMac(byte[] key)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

SHA256	back to summary
private SHA256()

Method Detail

getHash	back to summary
public static byte[] getHash(byte[] data, boolean nullData) Calculate the hash code for the given data. Parameters data:byte[] the data to hash nullData:boolean if the data should be filled with zeros after calculating the hash code Returns:byte[] the hash code

getHash

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public static byte[] getHash(byte[] data, boolean nullData)

Calculate the hash code for the given data.

Parameters

data:byte[]: the data to hash
nullData:boolean: if the data should be filled with zeros after calculating the hash code

Returns:byte[]

the hash code

getHashWithSalt	back to summary
public 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:byte[] the data to hash salt:byte[] the salt to use Returns:byte[] the hash code

getHashWithSalt

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public 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:byte[]: the data to hash
salt:byte[]: the salt to use

Returns:byte[]

the hash code

getHMAC	back to summary
public static byte[] getHMAC(byte[] key, byte[] message) Calculate the hash-based message authentication code. Parameters key:byte[] the key message:byte[] the message Returns:byte[] the hash

getHMAC

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public static byte[] getHMAC(byte[] key, byte[] message)

Calculate the hash-based message authentication code.

Parameters

key:byte[]: the key
message:byte[]: the message

Returns:byte[]

the hash

getKeyPasswordHash	back to summary
public 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:String the user name password:char[] the password Returns:byte[] the hash code

getKeyPasswordHash

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public 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:String: the user name
password:char[]: the password

Returns:byte[]

the hash code

getPBKDF2	back to summary
public static byte[] getPBKDF2(byte[] password, byte[] salt, int iterations, int resultLen) Calculate the hash using the password-based key derivation function 2. Parameters password:byte[] the password salt:byte[] the salt iterations:int the number of iterations resultLen:int the number of bytes in the result Returns:byte[] the result

getPBKDF2

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public static byte[] getPBKDF2(byte[] password, byte[] salt, int iterations, int resultLen)

Calculate the hash using the password-based key derivation function 2.

Parameters

password:byte[]: the password
salt:byte[]: the salt
iterations:int: the number of iterations
resultLen:int: the number of bytes in the result

Returns:byte[]

the result

initMac	back to summary
private static Mac initMac(byte[] key)

public Class SHA256

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