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Use CryptoAPI and Rijndael. Generate IV and store it with the encrypted data. Use DPAPI (Machine scope) to "protect" the symmetric key. Store the symmetric key in the registry or a file or the database, split the key and store parts in multiple places for added protection.
20 Αυγ 2015 · I have implemented the Salsa20 stream cipher as an ICryptoTransform. It runs fairly fast and has successfully encrypted and decrypted all of my tests. I would mostly like the Salsa20 algorithm to be reviewed (since there are very few reference implementations in C# out there), to make sure I haven't missed anything.
26 Μαρ 2024 · AES (Advanced Encryption Standard) is a symmetric block cipher algorithm that encrypts fixed-length blocks of data (128 bits). AES uses the same key to encrypt and decrypt data. Key sizes can be...
To decrypt the ciphertext, the decrypter generates the same counter stream, encrypts it using the same method (so they should have to know the same encryption key), then XOR's that with the cipher. Because XOR'ing with the same stream twice gives the original result, they get the plaintext.
25 Νοε 2020 · In this chapter, we will cover some of the most important cryptography libraries that can be used within .NET and C# applications. Choosing a cryptography library, especially one that is open source, represents a sensitive task compared to the .NET Framework itself.
6 Νοε 2015 · I'm brand new to C# and I've started to make a cipher decryption program. The code works and runs fine, apart from the odd exception. I'm just looking for ways to improve my code and make more efficient.
13 Φεβ 2024 · The .NET cryptography system implements an extensible pattern of derived class inheritance. The hierarchy is as follows: Algorithm type class, such as SymmetricAlgorithm, AsymmetricAlgorithm, or HashAlgorithm. This level is abstract.
