Ser Length Hash Key Generator
- May 23, 2018 G'day guys, In this video I will show you how to generate a hardware Id key using C# with WMI. First all of all, sorry for the mic quality, I have recently moved houses and had no idea about the.
- SHA-256, like other hash functions, is used in digital signatures, message authentication codes, to index data in hash tables, for finger-printing, to detect duplicate data, uniquely identify files, and as checksums to detect accidental data corruption. How big is a SHA-256 hash value? SHA-256 produces a 256-bit (32 bytes) hash value.
Definition
This tool provides a quick and easy way to encode an MD5 hash from a simple string of up to 256 characters in length. MD5 hashes are also used to ensure the data integrity of files. Because the MD5 hash algorithm always produces the same output for the same given input, users can compare a hash of the source file with a newly created hash of.
- Derived
- Attributes
Examples
The following example computes the SHA1 hash for data and stores it in result. This example assumes that there is a predefined constant DATA_SIZE.
Remarks
The hash is used as a unique value of fixed size representing a large amount of data. Hashes of two sets of data should match if the corresponding data also matches. Small changes to the data result in large, unpredictable changes in the hash.
The hash size for the SHA1 algorithm is 160 bits.
Due to collision problems with SHA1, Microsoft recommends a security model based on SHA256 or better.
Constructors
| SHA1() | Initializes a new instance of SHA1. |
Fields
| HashSizeValue | Represents the size, in bits, of the computed hash code. (Inherited from HashAlgorithm) |
| HashValue | Represents the value of the computed hash code. (Inherited from HashAlgorithm) |
| State | Represents the state of the hash computation. (Inherited from HashAlgorithm) |
Properties
| CanReuseTransform | Gets a value indicating whether the current transform can be reused. (Inherited from HashAlgorithm) |
| CanTransformMultipleBlocks | When overridden in a derived class, gets a value indicating whether multiple blocks can be transformed. (Inherited from HashAlgorithm) |
| Hash | Gets the value of the computed hash code. (Inherited from HashAlgorithm) |
| HashSize | Gets the size, in bits, of the computed hash code. (Inherited from HashAlgorithm) |
| InputBlockSize | When overridden in a derived class, gets the input block size. (Inherited from HashAlgorithm) |
| OutputBlockSize | When overridden in a derived class, gets the output block size. (Inherited from HashAlgorithm) |
Methods
| Clear() | Releases all resources used by the HashAlgorithm class. (Inherited from HashAlgorithm) |
| ComputeHash(Byte[]) | Computes the hash value for the specified byte array. (Inherited from HashAlgorithm) |
| ComputeHash(Byte[], Int32, Int32) | Computes the hash value for the specified region of the specified byte array. (Inherited from HashAlgorithm) |
| ComputeHash(Stream) | Computes the hash value for the specified Stream object. (Inherited from HashAlgorithm) |
| ComputeHashAsync(Stream, CancellationToken) | (Inherited from HashAlgorithm) |
| Create() | Creates an instance of the default implementation of SHA1. |
| Create(String) | /microsoft-office-word-2016-product-key-generator.html. Creates an instance of the specified implementation of SHA1. |
| Dispose() | Releases all resources used by the current instance of the HashAlgorithm class. (Inherited from HashAlgorithm) |
| Dispose(Boolean) | Releases the unmanaged resources used by the HashAlgorithm and optionally releases the managed resources. (Inherited from HashAlgorithm) |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object) |
| GetHashCode() | Serves as the default hash function. (Inherited from Object) |
| GetType() | Gets the Type of the current instance. (Inherited from Object) |
| HashCore(Byte[], Int32, Int32) | When overridden in a derived class, routes data written to the object into the hash algorithm for computing the hash. (Inherited from HashAlgorithm) |
| HashCore(ReadOnlySpan<Byte>) | Routes data written to the object into the hash algorithm for computing the hash. (Inherited from HashAlgorithm) |
| HashFinal() | When overridden in a derived class, finalizes the hash computation after the last data is processed by the cryptographic hash algorithm. (Inherited from HashAlgorithm) |
| Initialize() | Resets the hash algorithm to its initial state. (Inherited from HashAlgorithm) |
| MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString() | Returns a string that represents the current object. (Inherited from Object) |
| TransformBlock(Byte[], Int32, Int32, Byte[], Int32) | Computes the hash value for the specified region of the input byte array and copies the specified region of the input byte array to the specified region of the output byte array. (Inherited from HashAlgorithm) |
| TransformFinalBlock(Byte[], Int32, Int32) | Computes the hash value for the specified region of the specified byte array. (Inherited from HashAlgorithm) |
| TryComputeHash(ReadOnlySpan<Byte>, Span<Byte>, Int32) | Attempts to compute the hash value for the specified byte array. (Inherited from HashAlgorithm) |
| TryHashFinal(Span<Byte>, Int32) | Attempts to finalize the hash computation after the last data is processed by the hash algorithm. (Inherited from HashAlgorithm) |
Explicit Interface Implementations
| IDisposable.Dispose() | Releases the unmanaged resources used by the HashAlgorithm and optionally releases the managed resources. (Inherited from HashAlgorithm) |
Applies to
See also
-->Definition
Computes a Hash-based Message Authentication Code (HMAC) using the SHA512 hash function.
- Attributes
Examples
Hash Key Symbol
The following example shows how to sign a file by using the HMACSHA512 object and then how to verify the file.
Perl Hash Key
Remarks
HMACSHA512 is a type of keyed hash algorithm that is constructed from the SHA-512 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data and hashes the result. The hash value is mixed with the secret key again, and then hashed a second time. The output hash is 512 bits in length.
An HMAC can be used to determine whether a message sent over a nonsecure channel has been tampered with, provided that the sender and receiver share a secret key. The sender computes the hash value for the original data and sends both the original data and hash value as a single message. The receiver recalculates the hash value on the received message and checks that the computed HMAC matches the transmitted HMAC.
If the original and computed hash values match, the message is authenticated. If they do not match, either the data or the hash value has been changed. HMACs provide security against tampering because knowledge of the secret key is required to change the message and reproduce the correct hash value.
HMACSHA512 accepts keys of any size, and produces a hash sequence of length 512 bits.
Constructors
| HMACSHA512() | Initializes a new instance of the HMACSHA512 class with a randomly generated key. |
| HMACSHA512(Byte[]) | Initializes a new instance of the HMACSHA512 class with the specified key data. |
Fields
Hash Generator Md5
| HashSizeValue | Represents the size, in bits, of the computed hash code. (Inherited from HashAlgorithm) |
| HashValue | Represents the value of the computed hash code. (Inherited from HashAlgorithm) |
| KeyValue | The key to use in the hash algorithm. (Inherited from KeyedHashAlgorithm) |
| State | Represents the state of the hash computation. (Inherited from HashAlgorithm) |
Properties
| BlockSizeValue | Gets or sets the block size to use in the hash value. (Inherited from HMAC) |
| CanReuseTransform | Gets a value indicating whether the current transform can be reused. (Inherited from HashAlgorithm) |
| CanTransformMultipleBlocks | When overridden in a derived class, gets a value indicating whether multiple blocks can be transformed. (Inherited from HashAlgorithm) |
| Hash | Gets the value of the computed hash code. (Inherited from HashAlgorithm) |
| HashName | Gets or sets the name of the hash algorithm to use for hashing. (Inherited from HMAC) |
| HashSize | Gets the size, in bits, of the computed HMAC. |
| InputBlockSize | When overridden in a derived class, gets the input block size. (Inherited from HashAlgorithm) |
| Key | Gets or sets the key to use in the HMAC calculation. |
| OutputBlockSize | When overridden in a derived class, gets the output block size. (Inherited from HashAlgorithm) |
| ProduceLegacyHmacValues | Provides a workaround for the .NET Framework 2.0 implementation of the HMACSHA512 algorithm, which is inconsistent with the .NET Framework 2.0 Service Pack 1 implementation. |
Methods
| Clear() | Releases all resources used by the HashAlgorithm class. (Inherited from HashAlgorithm) |
| ComputeHash(Byte[]) | Computes the hash value for the specified byte array. (Inherited from HashAlgorithm) |
| ComputeHash(Byte[], Int32, Int32) | Computes the hash value for the specified region of the specified byte array. (Inherited from HashAlgorithm) |
| ComputeHash(Stream) | Computes the hash value for the specified Stream object. (Inherited from HashAlgorithm) |
| ComputeHashAsync(Stream, CancellationToken) | (Inherited from HashAlgorithm) |
| Dispose() | Releases all resources used by the current instance of the HashAlgorithm class. (Inherited from HashAlgorithm) |
| Dispose(Boolean) | Releases the unmanaged resources used by the HMACSHA512 and optionally releases the managed resources. |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object) |
| GetHashCode() | Serves as the default hash function. (Inherited from Object) |
| GetType() | Gets the Type of the current instance. (Inherited from Object) |
| HashCore(Byte[], Int32, Int32) | Routes data written to the object into the HMAC algorithm for computing the HMAC. |
| HashCore(ReadOnlySpan<Byte>) | Routes data written to the object into the HMAC algorithm for computing the HMAC. |
| HashFinal() | Finalizes the HMAC computation after the last data is processed by the algorithm. |
| Initialize() | Resets the hash algorithm to its initial state. |
| MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString() | Returns a string that represents the current object. (Inherited from Object) |
| TransformBlock(Byte[], Int32, Int32, Byte[], Int32) | Computes the hash value for the specified region of the input byte array and copies the specified region of the input byte array to the specified region of the output byte array. (Inherited from HashAlgorithm) |
| TransformFinalBlock(Byte[], Int32, Int32) | Computes the hash value for the specified region of the specified byte array. (Inherited from HashAlgorithm) |
| TryComputeHash(ReadOnlySpan<Byte>, Span<Byte>, Int32) | Attempts to compute the hash value for the specified byte array. (Inherited from HashAlgorithm) |
| TryHashFinal(Span<Byte>, Int32) | Attempts to finalize the HMAC computation after the last data is processed by the HMAC algorithm. |
Explicit Interface Implementations
| IDisposable.Dispose() | Releases the unmanaged resources used by the HashAlgorithm and optionally releases the managed resources. (Inherited from HashAlgorithm) |