Class StandardEncryptor
- java.lang.Object
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- org.apache.poi.poifs.crypt.Encryptor
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- org.apache.poi.poifs.crypt.standard.StandardEncryptor
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- All Implemented Interfaces:
java.lang.Cloneable
public class StandardEncryptor extends Encryptor implements java.lang.Cloneable
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected class
StandardEncryptor.StandardCipherOutputStream
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Field Summary
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Fields inherited from class org.apache.poi.poifs.crypt.Encryptor
DEFAULT_POIFS_ENTRY
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Constructor Summary
Constructors Modifier Constructor Description protected
StandardEncryptor()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description StandardEncryptor
clone()
void
confirmPassword(java.lang.String password)
void
confirmPassword(java.lang.String password, byte[] keySpec, byte[] keySalt, byte[] verifier, byte[] verifierSalt, byte[] integritySalt)
Fills the fields of verifier and header with the calculated hashes based on the password and a random salt see [MS-OFFCRYPTO] - 2.3.4.7 ECMA-376 Document Encryption Key Generationprotected void
createEncryptionInfoEntry(DirectoryNode dir)
java.io.OutputStream
getDataStream(DirectoryNode dir)
Return a output stream for encrypted data.protected int
getKeySizeInBytes()
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Methods inherited from class org.apache.poi.poifs.crypt.Encryptor
getDataStream, getDataStream, getEncryptionInfo, getInstance, getSecretKey, setChunkSize, setEncryptionInfo, setSecretKey
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Method Detail
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confirmPassword
public void confirmPassword(java.lang.String password)
- Specified by:
confirmPassword
in classEncryptor
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confirmPassword
public void confirmPassword(java.lang.String password, byte[] keySpec, byte[] keySalt, byte[] verifier, byte[] verifierSalt, byte[] integritySalt)
Fills the fields of verifier and header with the calculated hashes based on the password and a random salt see [MS-OFFCRYPTO] - 2.3.4.7 ECMA-376 Document Encryption Key Generation- Specified by:
confirmPassword
in classEncryptor
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getDataStream
public java.io.OutputStream getDataStream(DirectoryNode dir) throws java.io.IOException, java.security.GeneralSecurityException
Description copied from class:Encryptor
Return a output stream for encrypted data.- Specified by:
getDataStream
in classEncryptor
- Parameters:
dir
- the node to write to- Returns:
- encrypted stream
- Throws:
java.io.IOException
java.security.GeneralSecurityException
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getKeySizeInBytes
protected int getKeySizeInBytes()
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createEncryptionInfoEntry
protected void createEncryptionInfoEntry(DirectoryNode dir) throws java.io.IOException
- Throws:
java.io.IOException
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clone
public StandardEncryptor clone() throws java.lang.CloneNotSupportedException
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