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

Access	Constructor and Description
private	DigestUtils()

Method Summary

Modifier and Type	Method and Description
public static boolean	Returns: `true` if this digest algorithm is supported checkSupported(String The digest algorithm - never `null`/empty algorithm)
public static < The generic type of digest factory D extends Digest> D	Returns: The first `DigestFactory` whose algorithm matches the required one according to the comparator - `null` if no match found findDigestByAlgorithm(String The required algorithm name - ignored if `null`/empty algo, Comparator<? super String> The `Comparator` to use to compare algorithm names comp, Collection<? extends D> The factories to check - ignored if `null`/empty digests)
public static < The generic type of digest factory F extends DigestFactory> F	Returns: The first `DigestFactory` whose algorithm matches the required one according to the comparator - `null` if no match found findFactoryByAlgorithm(String The required algorithm name - ignored if `null`/empty algo, Comparator<? super String> The `Comparator` to use to compare algorithm names comp, Collection<? extends F> The factories to check - ignored if `null`/empty factories)
public static String	Returns: The fingerprint - `null` if `null`/empty input getFingerPrint(Factory<? extends Digest> The `Factory` to create the `Digest` to use f, String The `String` to digest - ignored if `null`/empty, otherwise its UTF-8 representation is used as input for the fingerprint s)
public static String	Returns: The fingerprint - `null` if `null`/empty input getFingerPrint(Factory<? extends Digest> The `Factory` to create the `Digest` to use f, String The `String` to digest - ignored if `null`/empty s, Charset The `Charset` to use in order to convert the string to its byte representation to use as input for the fingerprint charset)
public static String	Returns: The fingerprint - `null` if `null`/empty input getFingerPrint(Digest The `Digest` to use d, String The `String` to digest - ignored if `null`/empty, otherwise its UTF-8 representation is used as input for the fingerprint s)
public static String	Returns: The fingerprint - `null` if `null`/empty input getFingerPrint(Digest The `Digest` to use d, String The `String` to digest - ignored if `null`/empty s, Charset The `Charset` to use in order to convert the string to its byte representation to use as input for the fingerprint charset)
public static String	Returns: The fingerprint - `null` if empty data buffer getFingerPrint(Factory<? extends Digest> The `Factory` to create the `Digest` to use f, byte... The data buffer to be fingerprint-ed buf)
public static String	Returns: The fingerprint - `null` if non-positive length getFingerPrint(Factory<? extends Digest> The `Factory` to create the `Digest` to use f, byte[] The data buffer to be fingerprint-ed buf, int The offset of the data in the buffer offset, int The length of data - ignored if non-positive len)
public static String	Returns: The fingerprint - `null` if empty data buffer getFingerPrint(Digest The `Digest` to use d, byte... The data buffer to be fingerprint-ed buf)
public static String	Returns: The fingerprint - `null` if non-positive length getFingerPrint(Digest The `Digest` to use d, byte[] The data buffer to be fingerprint-ed buf, int The offset of the data in the buffer offset, int The length of data - ignored if non-positive len)
public static byte[]	getRawFingerprint(Digest d, byte... buf)
public static byte[]	getRawFingerprint(Digest d, byte[] buf, int offset, int len)

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

DigestUtils	back to summary
private DigestUtils()

Method Detail

checkSupported	back to summary
public static boolean checkSupported(String algorithm) Parameters algorithm:String The digest algorithm - never `null`/empty Returns:boolean `true` if this digest algorithm is supported See Also `SecurityUtils#getMessageDigest(String)`

findDigestByAlgorithm back to summary

findDigestByAlgorithm	back to summary
public static <D extends Digest> D findDigestByAlgorithm(String algo, Comparator<? super String> comp, Collection<? extends D> digests) Parameters <D> The generic type of digest factory algo:String The required algorithm name - ignored if `null`/empty comp:Comparator<? super String> The `Comparator` to use to compare algorithm names digests:Collection<? extends D> The factories to check - ignored if `null`/empty Returns:D The first `DigestFactory` whose algorithm matches the required one according to the comparator - `null` if no match found

public static <D extends Digest> D findDigestByAlgorithm(String algo, Comparator<? super String> comp, Collection<? extends D> digests)

Parameters

<D>: The generic type of digest factory
algo:String: The required algorithm name - ignored if null/empty
comp:Comparator<? super String>: The Comparator to use to compare algorithm names
digests:Collection<? extends D>: The factories to check - ignored if null/empty

Returns:D

The first DigestFactory whose algorithm matches the required one according to the comparator - null if no match found

findFactoryByAlgorithm back to summary

findFactoryByAlgorithm	back to summary
public static <F extends DigestFactory> F findFactoryByAlgorithm(String algo, Comparator<? super String> comp, Collection<? extends F> factories) Parameters <F> The generic type of digest factory algo:String The required algorithm name - ignored if `null`/empty comp:Comparator<? super String> The `Comparator` to use to compare algorithm names factories:Collection<? extends F> The factories to check - ignored if `null`/empty Returns:F The first `DigestFactory` whose algorithm matches the required one according to the comparator - `null` if no match found

public static <F extends DigestFactory> F findFactoryByAlgorithm(String algo, Comparator<? super String> comp, Collection<? extends F> factories)

Parameters

<F>: The generic type of digest factory
algo:String: The required algorithm name - ignored if null/empty
comp:Comparator<? super String>: The Comparator to use to compare algorithm names
factories:Collection<? extends F>: The factories to check - ignored if null/empty

Returns:F

The first DigestFactory whose algorithm matches the required one according to the comparator - null if no match found

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Factory<? extends Digest> f, String s) throws Exception Parameters f:Factory<? extends Digest> The `Factory` to create the `Digest` to use s:String The `String` to digest - ignored if `null`/empty, otherwise its UTF-8 representation is used as input for the fingerprint Returns:String The fingerprint - `null` if `null`/empty input Exceptions Exception: If failed to calculate the digest See Also `getFingerPrint(Digest, String, Charset)`

public static String getFingerPrint(Factory<? extends Digest> f, String s) throws Exception

Parameters

f:Factory<? extends Digest>: The Factory to create the Digest to use
s:String: The String to digest - ignored if null/empty, otherwise its UTF-8 representation is used as input for the fingerprint

Returns:String

The fingerprint - null if null/empty input

Exceptions

Exception:: If failed to calculate the digest

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Factory<? extends Digest> f, String s, Charset charset) throws Exception Parameters f:Factory<? extends Digest> The `Factory` to create the `Digest` to use s:String The `String` to digest - ignored if `null`/empty charset:Charset The `Charset` to use in order to convert the string to its byte representation to use as input for the fingerprint Returns:String The fingerprint - `null` if `null`/empty input Exceptions Exception: If failed to calculate the digest

public static String getFingerPrint(Factory<? extends Digest> f, String s, Charset charset) throws Exception

Parameters

f:Factory<? extends Digest>: The Factory to create the Digest to use
s:String: The String to digest - ignored if null/empty
charset:Charset: The Charset to use in order to convert the string to its byte representation to use as input for the fingerprint

Returns:String

The fingerprint - null if null/empty input

Exceptions

Exception:: If failed to calculate the digest

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Digest d, String s) throws Exception Parameters d:Digest The `Digest` to use s:String The `String` to digest - ignored if `null`/empty, otherwise its UTF-8 representation is used as input for the fingerprint Returns:String The fingerprint - `null` if `null`/empty input Exceptions Exception: If failed to calculate the digest See Also `getFingerPrint(Digest, String, Charset)`

public static String getFingerPrint(Digest d, String s) throws Exception

Parameters

d:Digest: The Digest to use
s:String: The String to digest - ignored if null/empty, otherwise its UTF-8 representation is used as input for the fingerprint

Returns:String

The fingerprint - null if null/empty input

Exceptions

Exception:: If failed to calculate the digest

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Digest d, String s, Charset charset) throws Exception Parameters d:Digest The `Digest` to use s:String The `String` to digest - ignored if `null`/empty charset:Charset The `Charset` to use in order to convert the string to its byte representation to use as input for the fingerprint Returns:String The fingerprint - `null` if `null`/empty input Exceptions Exception: If failed to calculate the digest

public static String getFingerPrint(Digest d, String s, Charset charset) throws Exception

Parameters

d:Digest: The Digest to use
s:String: The String to digest - ignored if null/empty
charset:Charset: The Charset to use in order to convert the string to its byte representation to use as input for the fingerprint

Returns:String

The fingerprint - null if null/empty input

Exceptions

Exception:: If failed to calculate the digest

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Factory<? extends Digest> f, byte... buf) throws Exception Parameters f:Factory<? extends Digest> The `Factory` to create the `Digest` to use buf:byte[] The data buffer to be fingerprint-ed Returns:String The fingerprint - `null` if empty data buffer Exceptions Exception: If failed to calculate the fingerprint See Also `getFingerPrint(Factory, byte[], int, int)`

public static String getFingerPrint(Factory<? extends Digest> f, byte... buf) throws Exception

Parameters

f:Factory<? extends Digest>: The Factory to create the Digest to use
buf:byte[]: The data buffer to be fingerprint-ed

Returns:String

The fingerprint - null if empty data buffer

Exceptions

Exception:: If failed to calculate the fingerprint

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Factory<? extends Digest> f, byte[] buf, int offset, int len) throws Exception Parameters f:Factory<? extends Digest> The `Factory` to create the `Digest` to use buf:byte[] The data buffer to be fingerprint-ed offset:int The offset of the data in the buffer len:int The length of data - ignored if non-positive Returns:String The fingerprint - `null` if non-positive length Exceptions Exception: If failed to calculate the fingerprint

public static String getFingerPrint(Factory<? extends Digest> f, byte[] buf, int offset, int len) throws Exception

Parameters

f:Factory<? extends Digest>: The Factory to create the Digest to use
buf:byte[]: The data buffer to be fingerprint-ed
offset:int: The offset of the data in the buffer
len:int: The length of data - ignored if non-positive

Returns:String

The fingerprint - null if non-positive length

Exceptions

Exception:: If failed to calculate the fingerprint

getFingerPrint	back to summary
public static String getFingerPrint(Digest d, byte... buf) throws Exception Parameters d:Digest The `Digest` to use buf:byte[] The data buffer to be fingerprint-ed Returns:String The fingerprint - `null` if empty data buffer Exceptions Exception: If failed to calculate the fingerprint See Also `getFingerPrint(Digest, byte[], int, int)`

getFingerPrint back to summary

getFingerPrint	back to summary
public static String getFingerPrint(Digest d, byte[] buf, int offset, int len) throws Exception Parameters d:Digest The `Digest` to use buf:byte[] The data buffer to be fingerprint-ed offset:int The offset of the data in the buffer len:int The length of data - ignored if non-positive Returns:String The fingerprint - `null` if non-positive length Exceptions Exception: If failed to calculate the fingerprint See Also `getRawFingerprint(Digest, byte[], int, int)`

public static String getFingerPrint(Digest d, byte[] buf, int offset, int len) throws Exception

Parameters

d:Digest: The Digest to use
buf:byte[]: The data buffer to be fingerprint-ed
offset:int: The offset of the data in the buffer
len:int: The length of data - ignored if non-positive

Returns:String

The fingerprint - null if non-positive length

Exceptions

Exception:: If failed to calculate the fingerprint

getRawFingerprint	back to summary
public static byte[] getRawFingerprint(Digest d, byte... buf) throws Exception

getRawFingerprint	back to summary
public static byte[] getRawFingerprint(Digest d, byte[] buf, int offset, int len) throws Exception

public final Class DigestUtils

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Constructor Detail

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