![Aes 32 Byte Key Generator Aes 32 Byte Key Generator](/uploads/1/2/5/8/125869592/589445083.jpg)
![Aes 32 Byte Key Generator Aes 32 Byte Key Generator](/uploads/1/2/5/8/125869592/873515275.png)
Definition
1) Create a 32-byte salt. 2) Create a 32-byte secret key. 3) Using PBKDF2-HMAC-SHA512 with 100,000 iterations, create a key using the password and the salt. 4) XOR the key and the secret key to create the key to be used to encrypt using AES-256.
Represents the abstract base class from which all implementations of the Advanced Encryption Standard (AES) must inherit.
- A strong AES key will be 16, 24, or 32 bytes long. If you restrict the key to bytes that map to printable US-ASCII characters, the key will be weaker than expected, because its range is limited (to about 100 bits, rather than 128—many millions of times weaker).
- If you don't make the IV random (i.e., you use some repeating group of numbers), it will be easier to figure out the key if the cookie always start with the same clear text. The IV size for AES-128 is 128 bits. IIRC, the IV is the same size as the cipher block. 128 bits is 16 bytes. 32 bytes if you store it as a ASCII hex string.
- Useful, free online tool that generates hex numbers. No ads, nonsense or garbage, just a random hex digit generator. Press button, get result.
Aes
- Derived
Examples
The following example demonstrates how to encrypt and decrypt sample data by using the Aes class.
Constructors
Aes() | Initializes a new instance of the Aes class. |
Fields
32 Byte String
BlockSizeValue | Represents the block size, in bits, of the cryptographic operation. (Inherited from SymmetricAlgorithm) |
FeedbackSizeValue | Represents the feedback size, in bits, of the cryptographic operation. (Inherited from SymmetricAlgorithm) |
IVValue | Represents the initialization vector (IV) for the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
KeySizeValue | Represents the size, in bits, of the secret key used by the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
KeyValue | Represents the secret key for the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
LegalBlockSizesValue | Specifies the block sizes, in bits, that are supported by the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
LegalKeySizesValue | Specifies the key sizes, in bits, that are supported by the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
ModeValue | Represents the cipher mode used in the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
PaddingValue | Represents the padding mode used in the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
Properties
BlockSize | Gets or sets the block size, in bits, of the cryptographic operation. (Inherited from SymmetricAlgorithm) |
FeedbackSize | Gets or sets the feedback size, in bits, of the cryptographic operation for the Cipher Feedback (CFB) and Output Feedback (OFB) cipher modes. (Inherited from SymmetricAlgorithm) |
IV | Gets or sets the initialization vector (IV) for the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
Key | Gets or sets the secret key for the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
KeySize | Gets or sets the size, in bits, of the secret key used by the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
LegalBlockSizes | Gets the block sizes, in bits, that are supported by the symmetric algorithm. |
LegalKeySizes | Gets the key sizes, in bits, that are supported by the symmetric algorithm. |
Mode | Gets or sets the mode for operation of the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
Padding | Gets or sets the padding mode used in the symmetric algorithm. (Inherited from SymmetricAlgorithm) |
Methods
Clear() | Releases all resources used by the SymmetricAlgorithm class. (Inherited from SymmetricAlgorithm) |
Create() | Creates a cryptographic object that is used to perform the symmetric algorithm. |
Create(String) | Creates a cryptographic object that specifies the implementation of AES to use to perform the symmetric algorithm. |
CreateDecryptor() | Creates a symmetric decryptor object with the current Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm) |
CreateDecryptor(Byte[], Byte[]) | When overridden in a derived class, creates a symmetric decryptor object with the specified Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm) |
CreateEncryptor() | Creates a symmetric encryptor object with the current Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm) |
CreateEncryptor(Byte[], Byte[]) | When overridden in a derived class, creates a symmetric encryptor object with the specified Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm) |
Dispose() | Releases all resources used by the current instance of the SymmetricAlgorithm class. (Inherited from SymmetricAlgorithm) |
Dispose(Boolean) | Releases the unmanaged resources used by the SymmetricAlgorithm and optionally releases the managed resources. (Inherited from SymmetricAlgorithm) |
Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object) |
GenerateIV() | When overridden in a derived class, generates a random initialization vector (IV) to use for the algorithm. (Inherited from SymmetricAlgorithm) |
GenerateKey() | When overridden in a derived class, generates a random key (Key) to use for the algorithm. (Inherited from SymmetricAlgorithm) |
GetHashCode() | Serves as the default hash function. (Inherited from Object) |
GetType() | Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() | Returns a string that represents the current object. (Inherited from Object) |
ValidKeySize(Int32) | Determines whether the specified key size is valid for the current algorithm. (Inherited from SymmetricAlgorithm) |
Explicit Interface Implementations
IDisposable.Dispose() | Releases the unmanaged resources used by the SymmetricAlgorithm and optionally releases the managed resources. (Inherited from SymmetricAlgorithm) |