Package org.apache.poi.poifs.crypt

Examples of org.apache.poi.poifs.crypt.HashAlgorithm

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            throw new EncryptedDocumentException(e);
        }
    }
   
    protected static SecretKey generateSecretKey(String password, EncryptionVerifier ver, int keySize) {
        HashAlgorithm hashAlgo = ver.getHashAlgorithm();

        byte pwHash[] = hashPassword(password, hashAlgo, ver.getSalt(), ver.getSpinCount());

        byte[] blockKey = new byte[4];
        LittleEndian.putInt(blockKey, 0, 0);
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        byte salt[] = safeGetDocumentProtection().getSalt();
        BigInteger spinCount = safeGetDocumentProtection().getCryptSpinCount();
       
        if (sid == null || hash == null || salt == null || spinCount == null) return false;
       
        HashAlgorithm hashAlgo;
        switch (sid.intValue()) {
        case 1: hashAlgo = HashAlgorithm.md2; break;
        case 2: hashAlgo = HashAlgorithm.md4; break;
        case 3: hashAlgo = HashAlgorithm.md5; break;
        case 4: hashAlgo = HashAlgorithm.sha1; break;
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            throw new EncryptedDocumentException("Unsupported chaining mode - "+keyData.getCipherChaining().toString());
        }
   
        int hashSize = keyData.getHashSize();
       
        HashAlgorithm ha = HashAlgorithm.fromEcmaId(keyData.getHashAlgorithm().toString());
        setHashAlgorithm(ha);

        if (getHashAlgorithmEx().hashSize != hashSize) {
            throw new EncryptedDocumentException("Unsupported hash algorithm: " +
                    keyData.getHashAlgorithm() + " @ " + hashSize + " bytes");
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  public void confirmPassword(String password, byte keySpec[], byte keySalt[], byte verifier[], byte verifierSalt[], byte integritySalt[]) {
        AgileEncryptionVerifier ver = builder.getVerifier();
        ver.setSalt(verifierSalt);
        AgileEncryptionHeader header = builder.getHeader();
        header.setKeySalt(keySalt);
        HashAlgorithm hashAlgo = ver.getHashAlgorithm();

        int blockSize = header.getBlockSize();
     
        pwHash = hashPassword(password, hashAlgo, verifierSalt, ver.getSpinCount());
       
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        keyPass.setBlockSize(header.getBlockSize());

        keyData.setKeyBits(header.getKeySize());
        keyPass.setKeyBits(header.getKeySize());

        HashAlgorithm hashAlgo = header.getHashAlgorithmEx();
        keyData.setHashSize(hashAlgo.hashSize);
        keyPass.setHashSize(hashAlgo.hashSize);

        STCipherAlgorithm.Enum xmlCipherAlgo = STCipherAlgorithm.Enum.forString(header.getCipherAlgorithm().xmlId);
        if (xmlCipherAlgo == null) {
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            throw new EncryptedDocumentException(e);
        }
    }
   
    protected static SecretKey generateSecretKey(String password, EncryptionVerifier ver, int keySize) {
        HashAlgorithm hashAlgo = ver.getHashAlgorithm();

        byte pwHash[] = hashPassword(password, hashAlgo, ver.getSalt(), ver.getSpinCount());

        byte[] blockKey = new byte[4];
        LittleEndian.putInt(blockKey, 0, 0);
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        CipherAlgorithm ca = CipherAlgorithm.fromXmlId(keyData.getCipherAlgorithm().toString(), keyBits);
        setCipherAlgorithm(ca);

        int hashSize = keyData.getHashSize();

        HashAlgorithm ha = HashAlgorithm.fromEcmaId(keyData.getHashAlgorithm().toString());
        setHashAlgorithm(ha);

        if (getHashAlgorithm().hashSize != hashSize) {
            throw new EncryptedDocumentException("Unsupported hash algorithm: " +
                    keyData.getHashAlgorithm() + " @ " + hashSize + " bytes");
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            throw new EncryptedDocumentException("Unsupported chaining mode - "+keyData.getCipherChaining().toString());
        }
   
        int hashSize = keyData.getHashSize();
       
        HashAlgorithm ha = HashAlgorithm.fromEcmaId(keyData.getHashAlgorithm().toString());
        setHashAlgorithm(ha);

        if (getHashAlgorithmEx().hashSize != hashSize) {
            throw new EncryptedDocumentException("Unsupported hash algorithm: " +
                    keyData.getHashAlgorithm() + " @ " + hashSize + " bytes");
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  public void confirmPassword(String password, byte keySpec[], byte keySalt[], byte verifier[], byte verifierSalt[], byte integritySalt[]) {
        AgileEncryptionVerifier ver = builder.getVerifier();
        ver.setSalt(verifierSalt);
        AgileEncryptionHeader header = builder.getHeader();
        header.setKeySalt(keySalt);
        HashAlgorithm hashAlgo = ver.getHashAlgorithm();

        int blockSize = header.getBlockSize();
     
        pwHash = hashPassword(password, hashAlgo, verifierSalt, ver.getSpinCount());
       
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        keyPass.setBlockSize(header.getBlockSize());

        keyData.setKeyBits(header.getKeySize());
        keyPass.setKeyBits(header.getKeySize());

        HashAlgorithm hashAlgo = header.getHashAlgorithmEx();
        keyData.setHashSize(hashAlgo.hashSize);
        keyPass.setHashSize(hashAlgo.hashSize);

        STCipherAlgorithm.Enum xmlCipherAlgo = STCipherAlgorithm.Enum.forString(header.getCipherAlgorithm().xmlId);
        if (xmlCipherAlgo == null) {
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Related Classes of org.apache.poi.poifs.crypt.HashAlgorithm

  • org.apache.poi.poifs.crypt.agile.AgileDecryptor
  • org.apache.poi.poifs.crypt.agile.AgileEncryptionHeader
  • org.apache.poi.poifs.crypt.agile.AgileEncryptionVerifier
  • org.apache.poi.poifs.crypt.agile.AgileEncryptor
  • org.apache.poi.poifs.crypt.standard.StandardDecryptor
  • org.apache.poi.xssf.usermodel.helpers.XSSFPaswordHelper
  • org.apache.poi.xwpf.usermodel.XWPFSettings
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