2014/10/16 上午 08:11:11
android Programming Glossary: cipher.getinstanceHow to encrypt file from sd card using AES in Android? http://stackoverflow.com/questions/10782187/how-to-encrypt-file-from-sd-card-using-aes-in-android skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec byte encrypted.. MyDifficultPassw .getBytes AES Create cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE sks Wrap the output stream.. SecretKeySpec MyDifficultPassw .getBytes AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE sks CipherInputStream cis..
Encryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 skeySpec new SecretKeySpec getRawKey AES Cipher cipher Cipher.getInstance AES cipher.init mode skeySpec byte encrypted cipher.doFinal..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work skeySpec new SecretKeySpec rawKey AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec return cipher.doFinal.. skeySpec new SecretKeySpec rawKey AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec return cipher.doFinal..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue algoritmos de clave sim矇trica Cipher encryptionCipher Cipher.getInstance CIPHER_ALGORITHM byte iv generateIv IvParameterSpec ivspec.. algoritmos de clave sim矇trica Cipher decryptionCipher Cipher.getInstance CIPHER_ALGORITHM byte iv generateIv IvParameterSpec ivspec..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java String text String key throws Exception Cipher cipher Cipher.getInstance AES CBC PKCS5Padding byte keyBytes new byte 16 byte b key.getBytes.. IvParameterSpec iv Cipher is not thread safe Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE skeySpec.. Base64.DEFAULT cipher is not thread safe Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.DECRYPT_MODE key ivParameterSpec..
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp byte passwordKey encodeDigest passphrase try aesCipher Cipher.getInstance CIPHER_TRANSFORMATION catch NoSuchAlgorithmException e Log.e..
http://stackoverflow.com/questions/3150830/android-encryption key new SecretKeySpec keyBytes AES Cipher cipher Cipher.getInstance AES ECB PKCS7Padding BC System.out.println new String input..
How to encrypt and decrypt file in Android? http://stackoverflow.com/questions/4275311/how-to-encrypt-and-decrypt-file-in-android FileInputStream . I would suggest something like Cipher.getInstance AES CBC PKCS5Padding for creating the Cipher class. If you want..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte decrypted..
android encryption/decryption with AES http://stackoverflow.com/questions/6788018/android-encryption-decryption-with-aes skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec byte encrypted.. skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte decrypted..
http://stackoverflow.com/questions/9496447/encryption-of-video-files skeySpec new SecretKeySpec raw AES final Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec return cipher.doFinal.. decfos new FileOutputStream decfile Cipher encipher Cipher.getInstance AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen.. Cipher encipher Cipher.getInstance AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen KeyGenerator.getInstance AES byte key..
How to encrypt file from sd card using AES in Android? http://stackoverflow.com/questions/10782187/how-to-encrypt-file-from-sd-card-using-aes-in-android byte encrypt byte raw byte clear throws Exception SecretKeySpec skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec byte encrypted cipher.doFinal clear return encrypted anyone can help me give.. Length is 16 byte SecretKeySpec sks new SecretKeySpec MyDifficultPassw .getBytes AES Create cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE sks Wrap the output stream CipherOutputStream cos new CipherOutputStream fos cipher.. new FileOutputStream data decrypted SecretKeySpec sks new SecretKeySpec MyDifficultPassw .getBytes AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE sks CipherInputStream cis new CipherInputStream fis cipher int b byte d new byte 8 while..
Encryption error on Android 4.2 http://stackoverflow.com/questions/13383006/encryption-error-on-android-4-2 NoSuchAlgorithmException NoSuchPaddingException SecretKeySpec skeySpec new SecretKeySpec getRawKey AES Cipher cipher Cipher.getInstance AES cipher.init mode skeySpec byte encrypted cipher.doFinal value return encrypted Decode an HEX encoded string into a..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work keygen.generateKey byte rawKey seckey.getEncoded SecretKeySpec skeySpec new SecretKeySpec rawKey AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec return cipher.doFinal data public static byte decrypt byte data String seed.. keygen.generateKey byte rawKey seckey.getEncoded SecretKeySpec skeySpec new SecretKeySpec rawKey AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec return cipher.doFinal data My guess is that the default provider wasn't the..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue secret.getEncoded La clase Cipher se usa para cifrar mediante algoritmos de clave sim矇trica Cipher encryptionCipher Cipher.getInstance CIPHER_ALGORITHM byte iv generateIv IvParameterSpec ivspec new IvParameterSpec iv Accion SecretKey parameter specification.. secret.getEncoded La clase Cipher se usa para cifrar mediante algoritmos de clave sim矇trica Cipher decryptionCipher Cipher.getInstance CIPHER_ALGORITHM byte iv generateIv IvParameterSpec ivspec new IvParameterSpec iv Accion SecretKey parameter specification..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java 4 5 6 7 32 21 10 11 12 13 84 45 public static String newEncrypt String text String key throws Exception Cipher cipher Cipher.getInstance AES CBC PKCS5Padding byte keyBytes new byte 16 byte b key.getBytes UTF 8 int len 16 System.arraycopy b 0 keyBytes 0 len.. iv byte 0x00 IvParameterSpec ivParameterSpec new IvParameterSpec iv Cipher is not thread safe Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE skeySpec ivParameterSpec String encrypedValue Base64.encodeToString.. new IvParameterSpec iv byte encrypedPwdBytes Base64.decode text Base64.DEFAULT cipher is not thread safe Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.DECRYPT_MODE key ivParameterSpec byte decrypedValueBytes cipher.doFinal encrypedPwdBytes..
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp MESSAGEDIGEST_ALGORITHM MD5 public Crypto String passphrase byte passwordKey encodeDigest passphrase try aesCipher Cipher.getInstance CIPHER_TRANSFORMATION catch NoSuchAlgorithmException e Log.e TAG No such algorithm CIPHER_ALGORITHM e catch NoSuchPaddingException..
http://stackoverflow.com/questions/3150830/android-encryption 0x0d 0x0e 0x0f 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 SecretKeySpec key new SecretKeySpec keyBytes AES Cipher cipher Cipher.getInstance AES ECB PKCS7Padding BC System.out.println new String input encryption pass cipher.init Cipher.ENCRYPT_MODE key byte cipherText..
How to encrypt and decrypt file in Android? http://stackoverflow.com/questions/4275311/how-to-encrypt-and-decrypt-file-in-android or CipherInputStream with a Cipher and your FileOutputStream FileInputStream . I would suggest something like Cipher.getInstance AES CBC PKCS5Padding for creating the Cipher class. If you want to use a password please make sure you do use a good key..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 some previously encoded data with the following SecretKeySpec skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte decrypted cipher.doFinal encrypted When using BC 1.45 I get this exception..
android encryption/decryption with AES http://stackoverflow.com/questions/6788018/android-encryption-decryption-with-aes byte encrypt byte raw byte clear throws Exception SecretKeySpec skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec byte encrypted cipher.doFinal clear return encrypted private static byte decrypt.. byte decrypt byte raw byte encrypted throws Exception SecretKeySpec skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte decrypted cipher.doFinal encrypted return decrypted And invoke them like..
http://stackoverflow.com/questions/9496447/encryption-of-video-files byte clear throws EncrypterException try final SecretKeySpec skeySpec new SecretKeySpec raw AES final Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec return cipher.doFinal clear catch Exception e throw new EncrypterException.. encfis new FileInputStream outfile FileOutputStream decfos new FileOutputStream decfile Cipher encipher Cipher.getInstance AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen KeyGenerator.getInstance AES byte key 0x00 0x32 0x22 0x11 0x00.. outfile FileOutputStream decfos new FileOutputStream decfile Cipher encipher Cipher.getInstance AES Cipher decipher Cipher.getInstance AES KeyGenerator kgen KeyGenerator.getInstance AES byte key 0x00 0x32 0x22 0x11 0x00 0x00 0x00 0x00 0x00 0x23 0x00 0x00..
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