com.obs.services.crypto

类 CTRCipherGenerator

java.lang.Object

com.obs.services.crypto.CTRCipherGenerator

直接已知子类:

CtrRSACipherGenerator

public class CTRCipherGenerator
extends Object

字段概要

字段

限定符和类型	字段和说明
protected static String	AES_ALGORITHM
static int	CRYPTO_IV_BYTES_LEN
static int	CRYPTO_KEY_BYTES_LEN
static String	ENCRYPTED_ALGORITHM
static String	ENCRYPTED_ALGORITHM_META_NAME
static String	ENCRYPTED_SHA_256_META_NAME
static String	ENCRYPTED_START_META_NAME
static String	MASTER_KEY_INFO_META_NAME
static String	PLAINTEXT_CONTENT_LENGTH_META_NAME
static String	PLAINTEXT_SHA_256_META_NAME

构造器概要

构造器

构造器和说明
CTRCipherGenerator(String masterKeyInfo, byte[] cryptoKeyBytes, boolean needSha256, SecureRandom secureRandom)
CTRCipherGenerator(String masterKeyInfo, byte[] cryptoIvBytes, byte[] cryptoKeyBytes, boolean needSha256, SecureRandom secureRandom)

方法概要

限定符和类型	方法和说明
com.obs.services.crypto.CTRCipherGenerator.SHA256Info	computeSHA256HashAES(InputStream plainTextStream, byte[] object_CryptoIvBytes, byte[] object_CryptoKeyBytes, boolean needPlainTextSha256)
CipherInputStream	getAES256DecryptedStream(InputStream ciphertextInput, byte[] object_CryptoIvBytes, byte[] object_CryptoKeyBytes)
CipherInputStream	getAES256EncryptedStream(InputStream plaintextInput, byte[] object_CryptoIvBytes, byte[] object_CryptoKeyBytes)
static Cipher	getAesCipher()
static String	getAesCipherProvider()
static byte[]	getAESEncryptedBytes(byte[] plainText, int plainTextOffset, int plainTextLength, byte[] aesKeyBytes, byte[] aesIvBytes)
static String	getBase64Info(byte[] cryptoInfo)
static byte[]	getBytesFromBase64(String cryptoInfo)
byte[]	getCryptoIvBytes()
byte[]	getCryptoKeyBytes()
static byte[]	getFileSha256Bytes(String filePath)
String	getMasterKeyInfo()
byte[]	getRandomBytes(int randomBytesLen)
byte[]	getRandomCryptoIvBytes()
byte[]	getRandomCryptoKeyBytes()
SecureRandom	getSecureRandom()
static int	getSha256BufferLen()
boolean	isNeedSha256()
static void	setAesCipherProvider(String aesCipherProvider)
void	setBase64AES256Iv(String cryptoIvBase64)
void	setBase64AES256Key(String cryptoKeyBase64)
void	setCryptoIvBytes(byte[] cryptoIvBytes)
void	setCryptoKeyBytes(byte[] cryptoKeyBytes)
void	setMasterKeyInfo(String masterKeyInfo)
void	setNeedSha256(boolean needSha256)
void	setSecureRandom(SecureRandom secureRandom)
static void	setSha256BufferLen(int sha256BufferLen)

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

ENCRYPTED_ALGORITHM

public static final String ENCRYPTED_ALGORITHM

另请参阅:

常量字段值

CRYPTO_KEY_BYTES_LEN

public static final int CRYPTO_KEY_BYTES_LEN

另请参阅:

常量字段值

CRYPTO_IV_BYTES_LEN

public static final int CRYPTO_IV_BYTES_LEN

另请参阅:

常量字段值

AES_ALGORITHM

protected static final String AES_ALGORITHM

另请参阅:

常量字段值

ENCRYPTED_ALGORITHM_META_NAME

public static final String ENCRYPTED_ALGORITHM_META_NAME

另请参阅:

常量字段值

ENCRYPTED_START_META_NAME

public static final String ENCRYPTED_START_META_NAME

另请参阅:

常量字段值

MASTER_KEY_INFO_META_NAME

public static final String MASTER_KEY_INFO_META_NAME

另请参阅:

常量字段值

PLAINTEXT_SHA_256_META_NAME

public static final String PLAINTEXT_SHA_256_META_NAME

另请参阅:

常量字段值

PLAINTEXT_CONTENT_LENGTH_META_NAME

public static final String PLAINTEXT_CONTENT_LENGTH_META_NAME

另请参阅:

常量字段值

ENCRYPTED_SHA_256_META_NAME

public static final String ENCRYPTED_SHA_256_META_NAME

另请参阅:

常量字段值

构造器详细资料

CTRCipherGenerator

public CTRCipherGenerator(String masterKeyInfo,
                          byte[] cryptoIvBytes,
                          byte[] cryptoKeyBytes,
                          boolean needSha256,
                          SecureRandom secureRandom)

CTRCipherGenerator

public CTRCipherGenerator(String masterKeyInfo,
                          byte[] cryptoKeyBytes,
                          boolean needSha256,
                          SecureRandom secureRandom)

方法详细资料

getAesCipherProvider

public static String getAesCipherProvider()

setAesCipherProvider

public static void setAesCipherProvider(String aesCipherProvider)

getSecureRandom

public SecureRandom getSecureRandom()

setSecureRandom

public void setSecureRandom(SecureRandom secureRandom)

getMasterKeyInfo

public String getMasterKeyInfo()

setMasterKeyInfo

public void setMasterKeyInfo(String masterKeyInfo)

getCryptoIvBytes

public byte[] getCryptoIvBytes()

getRandomCryptoIvBytes

public byte[] getRandomCryptoIvBytes()

setCryptoIvBytes

public void setCryptoIvBytes(byte[] cryptoIvBytes)

getCryptoKeyBytes

public byte[] getCryptoKeyBytes()

getRandomCryptoKeyBytes

public byte[] getRandomCryptoKeyBytes()

getRandomBytes

public byte[] getRandomBytes(int randomBytesLen)

setCryptoKeyBytes

public void setCryptoKeyBytes(byte[] cryptoKeyBytes)

isNeedSha256

public boolean isNeedSha256()

setNeedSha256

public void setNeedSha256(boolean needSha256)

getAES256DecryptedStream

public CipherInputStream getAES256DecryptedStream(InputStream ciphertextInput,
                                                  byte[] object_CryptoIvBytes,
                                                  byte[] object_CryptoKeyBytes)
                                           throws NoSuchPaddingException,
                                                  NoSuchAlgorithmException,
                                                  InvalidAlgorithmParameterException,
                                                  InvalidKeyException,
                                                  NoSuchProviderException

抛出:

NoSuchPaddingException

NoSuchAlgorithmException

InvalidAlgorithmParameterException

InvalidKeyException

NoSuchProviderException

getAES256EncryptedStream

public CipherInputStream getAES256EncryptedStream(InputStream plaintextInput,
                                                  byte[] object_CryptoIvBytes,
                                                  byte[] object_CryptoKeyBytes)
                                           throws NoSuchPaddingException,
                                                  NoSuchAlgorithmException,
                                                  InvalidAlgorithmParameterException,
                                                  InvalidKeyException,
                                                  NoSuchProviderException

抛出:

NoSuchPaddingException

NoSuchAlgorithmException

InvalidAlgorithmParameterException

InvalidKeyException

NoSuchProviderException

getBase64Info

public static String getBase64Info(byte[] cryptoInfo)

getBytesFromBase64

public static byte[] getBytesFromBase64(String cryptoInfo)
                                 throws UnsupportedEncodingException

抛出:

UnsupportedEncodingException

getAESEncryptedBytes

public static byte[] getAESEncryptedBytes(byte[] plainText,
                                          int plainTextOffset,
                                          int plainTextLength,
                                          byte[] aesKeyBytes,
                                          byte[] aesIvBytes)
                                   throws IllegalBlockSizeException,
                                          BadPaddingException,
                                          InvalidAlgorithmParameterException,
                                          InvalidKeyException,
                                          NoSuchPaddingException,
                                          NoSuchAlgorithmException,
                                          NoSuchProviderException

抛出:

IllegalBlockSizeException

BadPaddingException

InvalidAlgorithmParameterException

InvalidKeyException

NoSuchPaddingException

NoSuchAlgorithmException

NoSuchProviderException

setBase64AES256Key

public void setBase64AES256Key(String cryptoKeyBase64)
                        throws UnsupportedEncodingException,
                               ObsException

抛出:

UnsupportedEncodingException

ObsException

setBase64AES256Iv

public void setBase64AES256Iv(String cryptoIvBase64)
                       throws UnsupportedEncodingException,
                              ObsException

抛出:

UnsupportedEncodingException

ObsException

getFileSha256Bytes

public static byte[] getFileSha256Bytes(String filePath)
                                 throws IOException,
                                        NoSuchAlgorithmException

抛出:

IOException

NoSuchAlgorithmException

getAesCipher

public static Cipher getAesCipher()
                           throws NoSuchPaddingException,
                                  NoSuchAlgorithmException,
                                  NoSuchProviderException

抛出:

NoSuchPaddingException

NoSuchAlgorithmException

NoSuchProviderException

computeSHA256HashAES

public com.obs.services.crypto.CTRCipherGenerator.SHA256Info computeSHA256HashAES(InputStream plainTextStream,
                                                                                  byte[] object_CryptoIvBytes,
                                                                                  byte[] object_CryptoKeyBytes,
                                                                                  boolean needPlainTextSha256)
                                                                           throws NoSuchAlgorithmException,
                                                                                  IOException,
                                                                                  ObsException

抛出:

NoSuchAlgorithmException

IOException

ObsException

getSha256BufferLen

public static int getSha256BufferLen()

setSha256BufferLen

public static void setSha256BufferLen(int sha256BufferLen)