org.apache.hadoop.security.authentication.util

类 Signer

java.lang.Object

org.apache.hadoop.security.authentication.util.Signer

public class Signer
extends Object

Signs strings and verifies signed strings using a SHA digest.

构造器概要

构造器

构造器和说明
Signer(byte[] secret) Creates a Signer instance using the specified secret.

方法概要

方法

限定符和类型	方法和说明
protected String	computeSignature(String str) Returns then signature of a string.
String	sign(String str) Returns a signed string.
String	verifyAndExtract(String signedStr) Verifies a signed string and extracts the original string.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Signer

public Signer(byte[] secret)

Creates a Signer instance using the specified secret.

参数:

secret - secret to use for creating the digest.

方法详细资料

sign

public String sign(String str)

Returns a signed string.

The signature '&s=SIGNATURE' is appended at the end of the string.

参数:

str - string to sign.

返回:

the signed string.

verifyAndExtract

public String verifyAndExtract(String signedStr)
                        throws SignerException

Verifies a signed string and extracts the original string.

参数:

signedStr - the signed string to verify and extract.

返回:

the extracted original string.

抛出:

SignerException - thrown if the given string is not a signed string or if the signature is invalid.

computeSignature

protected String computeSignature(String str)

Returns then signature of a string.

参数:

str - string to sign.

返回:

the signature for the string.