com.ksyun.ks3.service.encryption.internal

类 S3CryptoModuleBase<T extends MultipartUploadContext>

java.lang.Object

com.ksyun.ks3.service.encryption.internal.S3CryptoModule<T>

com.ksyun.ks3.service.encryption.internal.S3CryptoModuleBase<T>

public abstract class S3CryptoModuleBase<T extends MultipartUploadContext>
extends S3CryptoModule<T>

Common implementation for different S3 cryptographic modules.

字段概要

字段

限定符和类型	字段和说明
protected com.ksyun.ks3.service.encryption.internal.ContentCryptoScheme	contentCryptoScheme
protected CryptoConfiguration	cryptoConfig
protected com.ksyun.ks3.service.encryption.internal.S3CryptoScheme	cryptoScheme
protected static int	DEFAULT_BUFFER_SIZE
protected EncryptionMaterialsProvider	kekMaterialsProvider
protected org.apache.commons.logging.Log	log
protected Map<String,T>	multipartUploadContexts Map of data about in progress encrypted multipart uploads.
protected S3Direct	s3

构造器概要

构造器

限定符	构造器和说明
protected	S3CryptoModuleBase(S3Direct s3, EncryptionMaterialsProvider kekMaterialsProvider, CryptoConfiguration cryptoConfig, com.ksyun.ks3.service.encryption.internal.S3CryptoScheme cryptoScheme)

方法概要

方法

限定符和类型	方法和说明
void	abortMultipartUploadSecurely(AbortMultipartUploadRequest req)
protected abstract long	ciphertextLength(long plaintextLength) Returns the length of the ciphertext computed from the length of the plaintext.
protected com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial	createContentCryptoMaterial(Ks3WebServiceRequest req)
protected PutObjectRequest	createInstructionPutRequest(String bucketName, String key, com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial)
protected SecretKey	generateCEK()
com.ksyun.ks3.service.encryption.internal.S3CryptoScheme	getS3CryptoScheme()
protected long	plaintextLength(PutObjectRequest request, ObjectMetadata metadata) Returns the plaintext length from the request and metadata; or -1 if unknown.
protected com.ksyun.ks3.service.encryption.internal.S3CryptoModuleBase.SecuredCEK	secureCEK(SecretKey toBeEncrypted, EncryptionMaterials materials, Provider cryptoProvider)
protected PutObjectRequest	upateInstructionPutRequest(PutObjectRequest request, com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial) Updates put request to store the specified instruction object in S3.
protected ObjectMetadata	updateMetadataWithContentCryptoMaterial(ObjectMetadata metadata, File file, com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial instruction)
protected PutObjectRequest	wrapWithCipher(PutObjectRequest request, com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial) Returns a request that has the content as input stream wrapped with a cipher, and configured with some meta data and user metadata.

从类继承的方法 com.ksyun.ks3.service.encryption.internal.S3CryptoModule

completeMultipartUploadSecurely, copyPartSecurely, getObjectSecurely, getObjectSecurely, initiateMultipartUploadSecurely, putObjectSecurely, uploadPartSecurely

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_BUFFER_SIZE

protected static final int DEFAULT_BUFFER_SIZE

另请参阅:

常量字段值

kekMaterialsProvider

protected final EncryptionMaterialsProvider kekMaterialsProvider

cryptoConfig

protected final CryptoConfiguration cryptoConfig

log

protected final org.apache.commons.logging.Log log

cryptoScheme

protected final com.ksyun.ks3.service.encryption.internal.S3CryptoScheme cryptoScheme

contentCryptoScheme

protected final com.ksyun.ks3.service.encryption.internal.ContentCryptoScheme contentCryptoScheme

multipartUploadContexts

protected final Map<String,T extends MultipartUploadContext> multipartUploadContexts

Map of data about in progress encrypted multipart uploads.

s3

protected final S3Direct s3

构造器详细资料

S3CryptoModuleBase

protected S3CryptoModuleBase(S3Direct s3,
                  EncryptionMaterialsProvider kekMaterialsProvider,
                  CryptoConfiguration cryptoConfig,
                  com.ksyun.ks3.service.encryption.internal.S3CryptoScheme cryptoScheme)

方法详细资料

ciphertextLength

protected abstract long ciphertextLength(long plaintextLength)

Returns the length of the ciphertext computed from the length of the plaintext.

参数:

plaintextLength - a non-negative number

返回:

a non-negative number

abortMultipartUploadSecurely

public final void abortMultipartUploadSecurely(AbortMultipartUploadRequest req)

指定者:

abortMultipartUploadSecurely 在类中 S3CryptoModule<T extends MultipartUploadContext>

updateMetadataWithContentCryptoMaterial

protected final ObjectMetadata updateMetadataWithContentCryptoMaterial(ObjectMetadata metadata,
                                                     File file,
                                                     com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial instruction)

createContentCryptoMaterial

protected final com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial createContentCryptoMaterial(Ks3WebServiceRequest req)

generateCEK

protected final SecretKey generateCEK()

secureCEK

protected final com.ksyun.ks3.service.encryption.internal.S3CryptoModuleBase.SecuredCEK secureCEK(SecretKey toBeEncrypted,
                                                                                EncryptionMaterials materials,
                                                                                Provider cryptoProvider)

wrapWithCipher

protected final PutObjectRequest wrapWithCipher(PutObjectRequest request,
                              com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial)

Returns a request that has the content as input stream wrapped with a cipher, and configured with some meta data and user metadata.

plaintextLength

protected final long plaintextLength(PutObjectRequest request,
                   ObjectMetadata metadata)

Returns the plaintext length from the request and metadata; or -1 if unknown.

getS3CryptoScheme

public final com.ksyun.ks3.service.encryption.internal.S3CryptoScheme getS3CryptoScheme()

upateInstructionPutRequest

protected final PutObjectRequest upateInstructionPutRequest(PutObjectRequest request,
                                          com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial)

Updates put request to store the specified instruction object in S3.

参数:

request - The put request for the original object to be stored in S3.

cekMaterial - The instruction object to be stored in S3.

返回:

A put request to store the specified instruction object in S3.

createInstructionPutRequest

protected final PutObjectRequest createInstructionPutRequest(String bucketName,
                                           String key,
                                           com.ksyun.ks3.service.encryption.internal.ContentCryptoMaterial cekMaterial)