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java Programming Glossary: cipherEncrypt Password in Configuration Files? (Java) http://stackoverflow.com/questions/1132567/encrypt-password-in-configuration-files-java a password. This basically means initialing a javax.crypto.Cipher with algorithm PBEWithMD5AndDES and getting a key from javax.crypto.SecretKeyFactory.. java.security.GeneralSecurityException import javax.crypto.Cipher import javax.crypto.SecretKey import javax.crypto.SecretKeyFactory.. key keyFactory.generateSecret new PBEKeySpec PASSWORD Cipher pbeCipher Cipher.getInstance PBEWithMD5AndDES pbeCipher.init..
http://stackoverflow.com/questions/1205135/how-to-encrypt-string-in-java to decrypt the information in the barcode. javax.crypto.Cipher is what you want to work with here. Let's assume the bytes to.. byte keyBytes byte ivBytes Now you can initialize the Cipher for the algorithm that you select wrap key data in Key IV specs.. the cipher with the algorithm you choose see javadoc for Cipher class for more info e.g. Cipher cipher Cipher.getInstance DES..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java String newEncrypt String text String key throws Exception Cipher cipher Cipher.getInstance AES CBC PKCS5Padding byte keyBytes.. String text String key throws Exception Cipher cipher Cipher.getInstance AES CBC PKCS5Padding byte keyBytes new byte 16 byte.. IvParameterSpec IV System.out.println ivSpec cipher.init Cipher.ENCRYPT_MODE keySpec ivSpec byte results cipher.doFinal text.getBytes..
How do I use 3des encryption/decryption in Java? http://stackoverflow.com/questions/20227/how-do-i-use-3des-encryption-decryption-in-java IvParameterSpec iv new IvParameterSpec new byte 8 final Cipher cipher Cipher.getInstance DESede CBC PKCS5Padding cipher.init.. iv new IvParameterSpec new byte 8 final Cipher cipher Cipher.getInstance DESede CBC PKCS5Padding cipher.init Cipher.ENCRYPT_MODE.. Cipher.getInstance DESede CBC PKCS5Padding cipher.init Cipher.ENCRYPT_MODE key iv final byte plainTextBytes message.getBytes..
Too much data for RSA block fail. What is PKCS#7? http://stackoverflow.com/questions/2579103/too-much-data-for-rsa-block-fail-what-is-pkcs7 RSA block fail. What is PKCS#7 Talking about javax.crypto.Cipher I was trying to encrypt data using Cipher.getInstance RSA None.. javax.crypto.Cipher I was trying to encrypt data using Cipher.getInstance RSA None NoPadding BC but I got the exception ArrayIndexOutOfBoundsException.. java.security.spec.RSAPublicKeySpec import javax.crypto.Cipher Basic RSA example. public class BaseRSAExample public static..
http://stackoverflow.com/questions/3150830/android-encryption import javax.crypto.Cipher import javax.crypto.spec.SecretKeySpec public class MainClass.. 0x16 0x17 SecretKeySpec key new SecretKeySpec keyBytes AES Cipher cipher Cipher.getInstance AES ECB PKCS7Padding BC System.out.println.. key new SecretKeySpec keyBytes AES Cipher cipher Cipher.getInstance AES ECB PKCS7Padding BC System.out.println new String..
InvalidKeyException Illegal key size http://stackoverflow.com/questions/3862800/invalidkeyexception-illegal-key-size Illegal key size at javax.crypto.Cipher.a DashoA13 .. at javax.crypto.Cipher.init DashoA13 .. at javax.crypto.Cipher.init.. size at javax.crypto.Cipher.a DashoA13 .. at javax.crypto.Cipher.init DashoA13 .. at javax.crypto.Cipher.init DashoA13 .. Both.. .. at javax.crypto.Cipher.init DashoA13 .. at javax.crypto.Cipher.init DashoA13 .. Both development box and TeamCity uses Java..
BouncyCastle AES error when upgrading to 1.45 http://stackoverflow.com/questions/4405334/bouncycastle-aes-error-when-upgrading-to-1-45 following SecretKeySpec skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE.. skeySpec new SecretKeySpec raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte.. raw AES Cipher cipher Cipher.getInstance AES cipher.init Cipher.DECRYPT_MODE skeySpec byte decrypted cipher.doFinal encrypted..
how can I convert String to SecretKey http://stackoverflow.com/questions/4551263/how-can-i-convert-string-to-secretkey skeySpec new SecretKeySpec raw AES Instantiate the cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE.. SecretKeySpec raw AES Instantiate the cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec System.out.println.. cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec System.out.println msg is message n raw..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption keySpec null keySpec new SecretKeySpec key AES Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE.. null keySpec new SecretKeySpec key AES Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE.. cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE keySpec output cipher.doFinal input The TODO bits..
http://stackoverflow.com/questions/1205135/how-to-encrypt-string-in-java that you select wrap key data in Key IV specs to pass to cipher SecretKeySpec key new SecretKeySpec keyBytes DES IvParameterSpec.. ivSpec new IvParameterSpec ivBytes create the cipher with the algorithm you choose see javadoc for Cipher class for.. see javadoc for Cipher class for more info e.g. Cipher cipher Cipher.getInstance DES CBC PKCS5Padding Encryption would go..
How do I use 3des encryption/decryption in Java? http://stackoverflow.com/questions/20227/how-do-i-use-3des-encryption-decryption-in-java iv new IvParameterSpec new byte 8 final Cipher cipher Cipher.getInstance DESede CBC PKCS5Padding cipher.init Cipher.ENCRYPT_MODE.. Cipher cipher Cipher.getInstance DESede CBC PKCS5Padding cipher.init Cipher.ENCRYPT_MODE key iv final byte plainTextBytes message.getBytes.. byte plainTextBytes message.getBytes utf 8 final byte cipherText cipher.doFinal plainTextBytes final String encodedCipherText..
Too much data for RSA block fail. What is PKCS#7? http://stackoverflow.com/questions/2579103/too-much-data-for-rsa-block-fail-what-is-pkcs7 Exception byte input new byte byte 0xbe byte 0xef Cipher cipher Cipher.getInstance RSA None NoPadding BC KeyFactory keyFactory.. keyFactory.generatePrivate privKeySpec encryption step cipher.init Cipher.ENCRYPT_MODE pubKey byte cipherText cipher.doFinal.. step cipher.init Cipher.ENCRYPT_MODE pubKey byte cipherText cipher.doFinal input decryption step cipher.init Cipher.DECRYPT_MODE..
http://stackoverflow.com/questions/3150830/android-encryption SecretKeySpec key new SecretKeySpec keyBytes AES Cipher cipher Cipher.getInstance AES ECB PKCS7Padding BC System.out.println.. BC System.out.println new String input encryption pass cipher.init Cipher.ENCRYPT_MODE key byte cipherText new byte cipher.getOutputSize.. encryption pass cipher.init Cipher.ENCRYPT_MODE key byte cipherText new byte cipher.getOutputSize input.length int ctLength..
InvalidKeyException Illegal key size http://stackoverflow.com/questions/3862800/invalidkeyexception-illegal-key-size CUSTOMLONGSECRETKEY.substring 0 32 .getBytes AES Cipher cipher Cipher.getInstance AES CBC PKCS7Padding BC cipher.init Cipher.ENCRYPT_MODE.. Cipher cipher Cipher.getInstance AES CBC PKCS7Padding BC cipher.init Cipher.ENCRYPT_MODE secret new IvParameterSpec VECTOR_SECRET_KEY.getBytes.. new IvParameterSpec VECTOR_SECRET_KEY.getBytes return cipher.doFinal info.getBytes UTF 8 UPDATE Looks like according to the..
hiding strings in Obfuscated code http://stackoverflow.com/questions/4427238/hiding-strings-in-obfuscated-code encrypting the string to do this you would use a symmetric cipher like AES via javax.crypto.Cipher http www.androidsnippets.org..
how can I convert String to SecretKey http://stackoverflow.com/questions/4551263/how-can-i-convert-string-to-secretkey skeySpec new SecretKeySpec raw AES Instantiate the cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE.. new SecretKeySpec raw AES Instantiate the cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec.. the cipher Cipher cipher Cipher.getInstance AES cipher.init Cipher.ENCRYPT_MODE skeySpec System.out.println msg is..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption keySpec null keySpec new SecretKeySpec key AES Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE.. AES Cipher cipher Cipher.getInstance AES CBC PKCS7Padding cipher.init Cipher.ENCRYPT_MODE keySpec output cipher.doFinal input.. cipher.init Cipher.ENCRYPT_MODE keySpec output cipher.doFinal input The TODO bits you need to do yourself java encryption..
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