Apache Mina SSHD 2.15.0 · org.apache.sshd.common.digest.BaseDigest

Modifier and Type	Field and Description
private final String	algorithm
private final int	bsize
private int	h
private MessageDigest	md
private String	s

Access	Constructor and Description
public	BaseDigest(String the JCE algorithm to use for this digest algorithm, int the block size of this digest bsize) Create a new digest using the given algorithm and block size.

Method Summary

Modifier and Type	Method and Description
public int	compareTo(Digest the object to be compared. that) Implements java.lang.Comparable.compareTo. Compares this object with the specified object for order.
public byte[]	digest() Implements org.apache.sshd.common.digest.Digest.digest.
public boolean	equals(Object the reference object with which to compare. obj) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public final String	getAlgorithm() Implements org.apache.sshd.common.AlgorithmNameProvider.getAlgorithm.
public int	getBlockSize() Implements org.apache.sshd.common.digest.DigestInformation.getBlockSize.
protected MessageDigest	Returns: The current `MessageDigest` - may be `null` if `init()` not called getMessageDigest()
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public void	init() Implements org.apache.sshd.common.digest.Digest.init.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.
public void	update(byte[] data) Implements org.apache.sshd.common.digest.Digest.update.
public void	update(byte[] data, int start, int len) Implements org.apache.sshd.common.digest.Digest.update.

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

algorithm	back to summary
private final String algorithm

bsize	back to summary
private final int bsize

h	back to summary
private int h

md	back to summary
private MessageDigest md

s	back to summary
private String s

BaseDigest	back to summary
public BaseDigest(String algorithm, int bsize) Create a new digest using the given algorithm and block size. The initialization and creation of the underlying `MessageDigest` object will be done in the `init()` method. Parameters algorithm:String the JCE algorithm to use for this digest bsize:int the block size of this digest

Method Detail

compareTo back to summary

compareTo	back to summary
public int compareTo(Digest that) Implements java.lang.Comparable.compareTo. Doc from java.lang.Comparable.compareTo. Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. The implementor must ensure `signum(x.compareTo(y)) == -signum(y.compareTo(x))` for all `x` and `y`. (This implies that `x.compareTo(y)` must throw an exception if and only if `y.compareTo(x)` throws an exception.) The implementor must also ensure that the relation is transitive: `(x.compareTo(y) > 0 && y.compareTo(z) > 0)` implies `x.compareTo(z) > 0`. Finally, the implementor must ensure that `x.compareTo(y)==0` implies that `signum(x.compareTo(z)) == signum(y.compareTo(z))`, for all `z`. Parameters that:Digest the object to be compared. Returns:int a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. Annotations @Override

public int compareTo(Digest that)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Parameters

that:Digest: the object to be compared.

Returns:int

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Annotations

@Override

digest	back to summary
public byte[] digest() throws Exception Implements org.apache.sshd.common.digest.Digest.digest. Annotations @Override

digest

back to summary

public byte[] digest() throws Exception

Implements org.apache.sshd.common.digest.Digest.digest.

Annotations

@Override

equals back to summary

equals	back to summary
public boolean equals(Object obj) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters obj:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

obj:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

getAlgorithm	back to summary
public final String getAlgorithm() Implements org.apache.sshd.common.AlgorithmNameProvider.getAlgorithm. Annotations @Override

getAlgorithm

back to summary

public final String getAlgorithm()

Implements org.apache.sshd.common.AlgorithmNameProvider.getAlgorithm.

Annotations

@Override

getBlockSize	back to summary
public int getBlockSize() Implements org.apache.sshd.common.digest.DigestInformation.getBlockSize. Returns:int Doc from org.apache.sshd.common.digest.DigestInformation.getBlockSize. The number of bytes in the digest's output Annotations @Override

getBlockSize

back to summary

public int getBlockSize()

Implements org.apache.sshd.common.digest.DigestInformation.getBlockSize.

Returns:int

Doc from org.apache.sshd.common.digest.DigestInformation.getBlockSize.

The number of bytes in the digest's output

Annotations

@Override

getMessageDigest	back to summary
protected MessageDigest getMessageDigest() Returns:MessageDigest The current `MessageDigest` - may be `null` if `init()` not called

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

init	back to summary
public void init() throws Exception Implements org.apache.sshd.common.digest.Digest.init. Annotations @Override

init

back to summary

public void init() throws Exception

Implements org.apache.sshd.common.digest.Digest.init.

Annotations

@Override

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Satisfying this method's contract implies a non-`null` result must be returned. Returns:String a string representation of the object Annotations @Override

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations

@Override

update	back to summary
public void update(byte[] data) throws Exception Implements org.apache.sshd.common.digest.Digest.update. Annotations @Override

update

back to summary

public void update(byte[] data) throws Exception

Implements org.apache.sshd.common.digest.Digest.update.

Annotations

@Override

update	back to summary
public void update(byte[] data, int start, int len) throws Exception Implements org.apache.sshd.common.digest.Digest.update. Annotations @Override

update

back to summary

public void update(byte[] data, int start, int len) throws Exception

Implements org.apache.sshd.common.digest.Digest.update.

Annotations

@Override

public Class BaseDigest

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