Note : 1, mean there : 1.1, org.bouncycastle .* of all software development organizations is bouncycastle package 1.2, org.infosecurity .* The software includes : DES_CBC algorithm to achieve the realization of the RSA algorithm (including : key generation, public key and private key encryption decryption, digital signatures and signature verification), the realization of digital envelope using digital envelope realize document encryption, decryption. Two, what is the use of : 2.1, learning the information security cryptography design and technology. 2.2 Of course, if you think in the other parts, I feel very happy. Three, what is there for improvement : 3.1 pairs of file encryption, decryption, and the time to frequent the IO, plus a buffer, such as 10K, 50K, the only buffer is needed for

Packet : 119128660security.rar filelist
src
src\org
src\org\infosecurity
src\org\infosecurity\cryptography
src\org\infosecurity\cryptography\IDigest.java
src\org\infosecurity\cryptography\WindowUtilities.java
src\org\infosecurity\cryptography\FileEncryptor.java
src\org\infosecurity\cryptography\DigitalEnvelop.java
src\org\infosecurity\cryptography\MyDebug.java
src\org\infosecurity\cryptography\CDesCBC.java
src\org\infosecurity\cryptography\CDigest.java
src\org\infosecurity\cryptography\CMd5.java
src\org\infosecurity\cryptography\CRsa.java
src\org\infosecurity\cryptography\CSha1.java
src\org\infosecurity\cryptography\DataLengthException.java
src\org\infosecurity\cryptography\DES.java
src\org\infosecurity\cryptography\DESTest.java
src\org\infosecurity\cryptography\RSAPublicKey.java
src\org\infosecurity\cryptography\test.java
src\org\infosecurity\cryptography\RSAPrivateKey.java
src\org\infosecurity\cryptography\CISODebug.java
src\org\bouncycastle
src\org\bouncycastle\util
src\org\bouncycastle\util\test
src\org\bouncycastle\util\test\SimpleTestResult.java
src\org\bouncycastle\util\test\Test.java
src\org\bouncycastle\util\test\TestResult.java
src\org\bouncycastle\util\encoders
src\org\bouncycastle\util\encoders\Base64.java
src\org\bouncycastle\util\encoders\BufferedDecoder.java
src\org\bouncycastle\util\encoders\BufferedEncoder.java
src\org\bouncycastle\util\encoders\Hex.java
src\org\bouncycastle\util\encoders\HexTranslator.java
src\org\bouncycastle\util\encoders\Translator.java
src\org\bouncycastle\util\encoders\test
src\org\bouncycastle\util\encoders\test\EncoderTest.java
src\org\bouncycastle\crypto
src\org\bouncycastle\crypto\Digest.java
src\org\bouncycastle\crypto\digests
src\org\bouncycastle\crypto\digests\GeneralDigest.java
src\org\bouncycastle\crypto\digests\LongDigest.java
src\org\bouncycastle\crypto\digests\MD2Digest.java
src\org\bouncycastle\crypto\digests\MD4Digest.java
src\org\bouncycastle\crypto\digests\MD5Digest.java
src\org\bouncycastle\crypto\digests\RIPEMD128Digest.java
src\org\bouncycastle\crypto\digests\RIPEMD160Digest.java
src\org\bouncycastle\crypto\digests\SHA1Digest.java
src\org\bouncycastle\crypto\digests\SHA256Digest.java
src\org\bouncycastle\crypto\digests\SHA384Digest.java
src\org\bouncycastle\crypto\digests\SHA512Digest.java
src\org\bouncycastle\crypto\digests\TigerDigest.java
src\org\bouncycastle\asn1
src\org\bouncycastle\asn1\ASN1EncodableVector.java
src\org\bouncycastle\asn1\ASN1InputStream.java
src\org\bouncycastle\asn1\ASN1Null.java
src\org\bouncycastle\asn1\ASN1OctetString.java
src\org\bouncycastle\asn1\ASN1OutputStream.java
src\org\bouncycastle\asn1\ASN1Sequence.java
src\org\bouncycastle\asn1\ASN1Set.java
src\org\bouncycastle\asn1\ASN1TaggedObject.java
src\org\bouncycastle\asn1\BERConstructedOctetString.java
src\org\bouncycastle\asn1\BERConstructedSequence.java
src\org\bouncycastle\asn1\BERInputStream.java
src\org\bouncycastle\asn1\BERNull.java
src\org\bouncycastle\asn1\BEROutputStream.java
src\org\bouncycastle\asn1\BERSequence.java
src\org\bouncycastle\asn1\BERSet.java
src\org\bouncycastle\asn1\BERTaggedObject.java
src\org\bouncycastle\asn1\DERBitString.java
src\org\bouncycastle\asn1\DERBMPString.java
src\org\bouncycastle\asn1\DERBoolean.java
src\org\bouncycastle\asn1\DERConstructedSequence.java
src\org\bouncycastle\asn1\DERConstructedSet.java
src\org\bouncycastle\asn1\DEREncodable.java
src\org\bouncycastle\asn1\DEREncodableVector.java
src\org\bouncycastle\asn1\DEREnumerated.java
src\org\bouncycastle\asn1\DERGeneralizedTime.java
src\org\bouncycastle\asn1\DERIA5String.java
src\org\bouncycastle\asn1\DERInputStream.java
src\org\bouncycastle\asn1\DERInteger.java
src\org\bouncycastle\asn1\DERNull.java
src\org\bouncycastle\asn1\DERNumericString.java
src\org\bouncycastle\asn1\DERObject.java
src\org\bouncycastle\asn1\DERObjectIdentifier.java
src\org\bouncycastle\asn1\DEROctetString.java
src\org\bouncycastle\asn1\DEROutputStream.java
src\org\bouncycastle\asn1\DERPrintableString.java
src\org\bouncycastle\asn1\DERSequence.java
src\org\bouncycastle\asn1\DERSet.java
src\org\bouncycastle\asn1\DERString.java
src\org\bouncycastle\asn1\DERT61String.java
src\org\bouncycastle\asn1\DERTaggedObject.java
src\org\bouncycastle\asn1\DERTags.java
src\org\bouncycastle\asn1\DERUniversalString.java
src\org\bouncycastle\asn1\DERUnknownTag.java
src\org\bouncycastle\asn1\DERUTCTime.java
src\org\bouncycastle\asn1\DERUTF8String.java
src\org\bouncycastle\asn1\DERVisibleString.java
src\org\bouncycastle\asn1\OIDTokenizer.java
src\org\bouncycastle\asn1\x509
src\org\bouncycastle\asn1\x509\AlgorithmIdentifier.java
src\org\bouncycastle\asn1\x509\AttCertIssuer.java
src\org\bouncycastle\asn1\x509\AttCertValidityPeriod.java
src\org\bouncycastle\asn1\x509\AttributeCertificate.java
src\org\bouncycastle\asn1\x509\AttributeCertificateInfo.java
src\org\bouncycastle\asn1\x509\AuthorityKeyIdentifier.java
src\org\bouncycastle\asn1\x509\BasicConstraints.java
src\org\bouncycastle\asn1\x509\CertificateList.java
src\org\bouncycastle\asn1\x509\CertificatePolicies.java
src\org\bouncycastle\asn1\x509\CRLDistPoint.java
src\org\bouncycastle\asn1\x509\CRLNumber.java
src\org\bouncycastle\asn1\x509\CRLReason.java
src\org\bouncycastle\asn1\x509\DigestInfo.java
src\org\bouncycastle\asn1\x509\DistributionPoint.java
src\org\bouncycastle\asn1\x509\DistributionPointName.java
src\org\bouncycastle\asn1\x509\DSAParameter.java
src\org\bouncycastle\asn1\x509\ExtendedKeyUsage.java
src\org\bouncycastle\asn1\x509\GeneralName.java
src\org\bouncycastle\asn1\x509\GeneralNames.java
src\org\bouncycastle\asn1\x509\Holder.java
src\org\bouncycastle\asn1\x509\IssuerSerial.java
src\org\bouncycastle\asn1\x509\KeyPurposeId.java
src\org\bouncycastle\asn1\x509\KeyUsage.java
src\org\bouncycastle\asn1\x509\ObjectDigestInfo.java
src\org\bouncycastle\asn1\x509\ReasonFlags.java
src\org\bouncycastle\asn1\x509\RSAPublicKeyStructure.java
src\org\bouncycastle\asn1\x509\SubjectKeyIdentifier.java
src\org\bouncycastle\asn1\x509\SubjectPublicKeyInfo.java
src\org\bouncycastle\asn1\x509\TBSCertificateStructure.java
src\org\bouncycastle\asn1\x509\TBSCertList.java
src\org\bouncycastle\asn1\x509\Time.java
src\org\bouncycastle\asn1\x509\V1TBSCertificateGenerator.java
src\org\bouncycastle\asn1\x509\V2Form.java
src\org\bouncycastle\asn1\x509\V2TBSCertListGenerator.java
src\org\bouncycastle\asn1\x509\V3TBSCertificateGenerator.java
src\org\bouncycastle\asn1\x509\X509CertificateStructure.java
src\org\bouncycastle\asn1\x509\X509Extension.java
src\org\bouncycastle\asn1\x509\X509Extensions.java
src\org\bouncycastle\asn1\x509\X509Name.java
src\org\bouncycastle\asn1\x509\X509NameTokenizer.java
src\org\bouncycastle\asn1\x509\X509ObjectIdentifiers.java
src\org\bouncycastle\asn1\util
src\org\bouncycastle\asn1\util\ASN1Dump.java
src\org\bouncycastle\asn1\util\DERDump.java
src\org\bouncycastle\asn1\util\Dump.java
src\org\bouncycastle\asn1\test
src\org\bouncycastle\asn1\test\CertificateTest.java
src\org\bouncycastle\asn1\test\EncryptedPrivateKeyInfoTest.java
src\org\bouncycastle\asn1\test\OIDTest.java
src\org\bouncycastle\asn1\test\PKCS10Test.java
src\org\bouncycastle\asn1\test\RegressionTest.java
src\org\bouncycastle\asn1\test\X509NameTest.java
src\org\bouncycastle\asn1\smime
src\org\bouncycastle\asn1\smime\SMIMEAttributes.java
src\org\bouncycastle\asn1\smime\SMIMECapabilities.java
src\org\bouncycastle\asn1\smime\SMIMECapabilitiesAttribute.java
src\org\bouncycastle\asn1\smime\SMIMECapability.java
src\org\bouncycastle\asn1\smime\SMIMECapabilityVector.java
src\org\bouncycastle\asn1\smime\SMIMEEncryptionKeyPreferenceAttribute.java
src\org\bouncycastle\asn1\sec
src\org\bouncycastle\asn1\sec\ECPrivateKeyStructure.java
src\org\bouncycastle\asn1\pkcs
src\org\bouncycastle\asn1\pkcs\Attribute.java
src\org\bouncycastle\asn1\pkcs\AuthenticatedSafe.java
src\org\bouncycastle\asn1\pkcs\CertBag.java
src\org\bouncycastle\asn1\pkcs\CertificationRequest.java
src\org\bouncycastle\asn1\pkcs\CertificationRequestInfo.java
src\org\bouncycastle\asn1\pkcs\ContentInfo.java
src\org\bouncycastle\asn1\pkcs\DHParameter.java
src\org\bouncycastle\asn1\pkcs\EncryptedData.java
src\org\bouncycastle\asn1\pkcs\EncryptedPrivateKeyInfo.java
src\org\bouncycastle\asn1\pkcs\EncryptionScheme.java
src\org\bouncycastle\asn1\pkcs\IssuerAndSerialNumber.java
src\org\bouncycastle\asn1\pkcs\KeyDerivationFunc.java
src\org\bouncycastle\asn1\pkcs\MacData.java
src\org\bouncycastle\asn1\pkcs\PBES2Algorithms.java
src\org\bouncycastle\asn1\pkcs\PBES2Parameters.java
src\org\bouncycastle\asn1\pkcs\PBKDF2Params.java
src\org\bouncycastle\asn1\pkcs\Pfx.java
src\org\bouncycastle\asn1\pkcs\PKCS12PBEParams.java
src\org\bouncycastle\asn1\pkcs\PKCSObjectIdentifiers.java
src\org\bouncycastle\asn1\pkcs\PrivateKeyInfo.java
src\org\bouncycastle\asn1\pkcs\RC2CBCParameter.java
src\org\bouncycastle\asn1\pkcs\RSAPrivateKeyStructure.java
src\org\bouncycastle\asn1\pkcs\SafeBag.java
src\org\bouncycastle\asn1\pkcs\SignedData.java
src\org\bouncycastle\asn1\pkcs\SignerInfo.java
src\org\bouncycastle\asn1\oiw
src\org\bouncycastle\asn1\oiw\ElGamalParameter.java
src\org\bouncycastle\asn1\oiw\OIWObjectIdentifiers.java
src\org\bouncycastle\asn1\ocsp
src\org\bouncycastle\asn1\ocsp\CertID.java
src\org\bouncycastle\asn1\ocsp\CrlID.java
src\org\bouncycastle\asn1\ocsp\OCSPRequest.java
src\org\bouncycastle\asn1\ocsp\OCSPResponse.java
src\org\bouncycastle\asn1\ocsp\OCSPResponseStatus.java
src\org\bouncycastle\asn1\ocsp\Request.java
src\org\bouncycastle\asn1\ocsp\ResponseBytes.java
src\org\bouncycastle\asn1\ocsp\ServiceLocator.java
src\org\bouncycastle\asn1\ocsp\Signature.java
src\org\bouncycastle\asn1\ocsp\TBSRequest.java
src\org\bouncycastle\asn1\misc
src\org\bouncycastle\asn1\misc\CAST5CBCParameters.java
src\org\bouncycastle\asn1\misc\IDEACBCPar.java
src\org\bouncycastle\asn1\misc\MiscObjectIdentifiers.java
src\org\bouncycastle\asn1\misc\NetscapeCertType.java
src\org\bouncycastle\asn1\misc\NetscapeRevocationURL.java
src\org\bouncycastle\asn1\misc\VerisignCzagExtension.java
src\org\bouncycastle\asn1\cms
src\org\bouncycastle\asn1\cms\Attribute.java
src\org\bouncycastle\asn1\cms\AttributeTable.java
src\org\bouncycastle\asn1\cms\CMSAttributes.java
src\org\bouncycastle\asn1\cms\CMSObjectIdentifiers.java
src\org\bouncycastle\asn1\cms\CompressedData.java
src\org\bouncycastle\asn1\cms\ContentInfo.java
src\org\bouncycastle\asn1\cms\EncryptedContentInfo.java
src\org\bouncycastle\asn1\cms\EncryptedData.java
src\org\bouncycastle\asn1\cms\EnvelopedData.java
src\org\bouncycastle\asn1\cms\IssuerAndSerialNumber.java
src\org\bouncycastle\asn1\cms\KEKIdentifier.java
src\org\bouncycastle\asn1\cms\KEKRecipientInfo.java
src\org\bouncycastle\asn1\cms\KeyAgreeRecipientInfo.java
src\org\bouncycastle\asn1\cms\KeyTransRecipientInfo.java
src\org\bouncycastle\asn1\cms\OriginatorIdentifierOrKey.java
src\org\bouncycastle\asn1\cms\OriginatorInfo.java
src\org\bouncycastle\asn1\cms\OriginatorPublicKey.java
src\org\bouncycastle\asn1\cms\OtherKeyAttribute.java
src\org\bouncycastle\asn1\cms\RecipientIdentifier.java
src\org\bouncycastle\asn1\cms\RecipientInfo.java
src\org\bouncycastle\asn1\cms\RecipientKeyIdentifier.java
src\org\bouncycastle\asn1\cms\SignedData.java
src\org\bouncycastle\asn1\cms\SignerIdentifier.java
src\org\bouncycastle\asn1\cms\SignerInfo.java
src\org\bouncycastle\asn1\cms\Time.java
security.jpx
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