Every key generator I've seen uses a 'salt' along with the passphrase to generate AES-256 keys. The various versions of BE that I've used will all read the tape once I've used their key management process to create the key using the passphrase, so this implies (to me, at least) that either they're generating the key without a salt, or are using the same salt across installations. NEVER use the same key to encrypt and hmac the same message. $endgroup$ – ddddavidee Jan 13 '16 at 15:38 $begingroup$ I don't think I'm going to use an HMAC. It looks like my process will be as follows: Choose a passphrase with high entropy Generate a salt with a CSPRNG generate an encryption key from the passphrase and salt generate.

1. Does A Passphrase Generate The Same Key Using Aes Code
2. Does A Passphrase Generate The Same Key Using Aesthetic
3. Does A Passphrase Generate The Same Key Using Aes Calculator

How to Encrypt and Decrypt a File

When you encrypt a file, the original file is not removed or changed.The output file is encrypted.

For solutions to common errors from the encrypt command,see the section that follows the examples.

1. Create a symmetric key of the appropriatelength.

   You have two options. Youcan provide a passphrase from whicha key will be generated. Or you can provide a key.

   • If you provide a passphrase, you must store or remember thepassphrase. If you store the passphrase online, the passphrase file shouldbe readable only by you.

   • If you provide a key, it must be the correct size for themechanism. For the procedure, see How to Generate a Symmetric Key by Using the dd Command.

2. Encrypta file.

   Provide a key and use a symmetric key algorithm with the encrypt command.

   -aalgorithm

   Is the algorithm to use to encrypt the file. Type the algorithmas the algorithm appears in the output of the encrypt -l command.

   -kkeyfile

   Is the file that contains a key of algorithm-specified length. The key length for each algorithm is listed, in bits, in the output of the encrypt -l command.

   -iinput-file

   Is the input file that you want to encrypt. This file is leftunchanged by the command. Nfs payback key generator online.

   -ooutput-file

   Is the output file that is the encrypted form of the inputfile.

Example 14–11 Encrypting and Decrypting With AES and a Passphrase

In the following example, a file is encrypted with the AES algorithm.The key is generated from the passphrase. If the passphrase is stored in afile, the file should not be readable by anyone but the user.

The input file, ticket.to.ride, still exists inits original form.

To decrypt theoutput file, the user uses the same passphrase and encryption mechanism thatencrypted the file.

Example 14–12 Encrypting and Decrypting With AES and a Key File

In the following example, a file is encrypted with the AES algorithm.AES mechanisms use a key of 128 bits, or 16 bytes.

The input file, ticket.to.ride, still exists inits original form.

To decrypt the output file, the user uses the same key and encryptionmechanism that encrypted the file.

Example 14–13 Encrypting and Decrypting With ARCFOUR and a Key File

In the following example, a file is encrypted with the ARCFOUR algorithm.The ARCFOUR algorithm accepts a key of 8 bits (1 byte), 64 bits (8 bytes),or 128 bits (16 bytes).

To decrypt the output file, the user uses the same key and encryptionmechanism that encrypted the file.

Example 14–14 Encrypting and Decrypting With 3DES and a Key File

In the following example, a file is encrypted with the 3DES algorithm.The 3DES algorithm requires a key of 192 bits, or 24 bytes.

To decrypt the output file, the user uses the same key and encryptionmechanism that encrypted the file.

Does A Passphrase Generate The Same Key Using Aes Code

Troubleshooting

The following messages indicate that the key that you providedto the encrypt command is not permitted by the algorithmthat you are using.

Does A Passphrase Generate The Same Key Using Aesthetic

• encrypt: unable to create key for crypto operation:CKR_ATTRIBUTE_VALUE_INVALID

• encrypt: failed to initialize crypto operation: CKR_KEY_SIZE_RANGE

If you pass a key that does not meet the requirements of the algorithm,you must supply a better key.

Does A Passphrase Generate The Same Key Using Aes Calculator

• One option is to use a passphrase. The framework then providesa key that meets the requirements.

• The second option is to pass a key size that the algorithmaccepts. For example, the DES algorithm requires a key of 64 bits. The 3DESalgorithm requires a key of 192 bits.