com.alibaba.sdk.android.oss.signer

Class ServiceSignature

java.lang.Object

com.alibaba.sdk.android.oss.signer.ServiceSignature

Direct Known Subclasses:

HmacSHA1Signature, HmacSHA256Signature

public abstract class ServiceSignature
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ServiceSignature()

Method Summary

Modifier and Type	Method and Description
abstract byte[]	computeHash(byte[] key, byte[] data) Computes the hash of the data by the given key.
abstract java.lang.String	computeSignature(java.lang.String key, java.lang.String data) Computes the signature of the data by the given key.
static ServiceSignature	create() Creates the default ServiceSignature instance which is HmacSHA1Signature.
static ServiceSignature	create(java.lang.String algorithm) Creates the ServiceSignature instance by the algorithm
abstract java.lang.String	getAlgorithm() Gets the algorithm of signature.
abstract java.lang.String	getVersion() Gets the algorithm version.
protected byte[]	sign(byte[] key, byte[] data, javax.crypto.Mac macInstance, java.lang.Object lock, java.lang.String algorithm)

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceSignature

public ServiceSignature()

Method Detail

getAlgorithm

public abstract java.lang.String getAlgorithm()

Gets the algorithm of signature.

Returns:

The algorithm of the signature.

getVersion

public abstract java.lang.String getVersion()

Gets the algorithm version.

Returns:

The algorithm version.

computeSignature

public abstract java.lang.String computeSignature(java.lang.String key,
                                                  java.lang.String data)

Computes the signature of the data by the given key.

Parameters:

key - The key for the signature.

data - The data to compute the signature on.

Returns:

The signature in string.

computeHash

public abstract byte[] computeHash(byte[] key,
                                   byte[] data)

Computes the hash of the data by the given key.

Parameters:

key - The key for the signature.

data - The data to compute the hash on.

Returns:

The hash in byte array.

create

public static ServiceSignature create()

Creates the default ServiceSignature instance which is HmacSHA1Signature.

Returns:

The default ServiceSignature instance

create

public static ServiceSignature create(java.lang.String algorithm)

Creates the ServiceSignature instance by the algorithm

Returns:

The ServiceSignature instance

sign

protected byte[] sign(byte[] key,
                      byte[] data,
                      javax.crypto.Mac macInstance,
                      java.lang.Object lock,
                      java.lang.String algorithm)