Definition
Jul 02, 2019 Dismiss Join GitHub today. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. In the left side, Api&Auth-Api.You have to turn on Google cloud messaging for android. For me,I have to Click Credentials in Api&Auth to create a key.Below I am shown a screenshot for that. Finally,Click create new key to generate a key for your application.see here for SHA-1 fingerprint. Problem: want to encrypt messages/objects/files using AES-GCM with the same secret key in a safe way, but want to do it in distributed/stateless way, so the IV of previous encryptions with the same key are not known and as I understand AES-GCM is not so secure with many messages if random IV is used.
Represents the abstract base class from which all implementations of the Advanced Encryption Standard (AES) must inherit.
Inheritance
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
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
Aes Gcm Wiki
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.
Those 32 bytes get stored by SQL Server as a VARBINARY value. However, they are not store in plain text. How do encryptions generate keys.
(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
Android Generate Aes Gcm Key Free
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. Swiss perfect 98 key generator.
(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)
