Table of Contents

Class Camellia128

Namespace
CryptoHives.Foundation.Security.Cryptography.Cipher
Assembly
CryptoHives.Foundation.Security.Cryptography.dll

Camellia-128 symmetric cipher implementation.

public sealed class Camellia128 : SymmetricCipher, IDisposable
Inheritance
Camellia128
Implements
Inherited Members

Remarks

Camellia-128 uses a 128-bit (16-byte) key with 18 rounds of encryption. It is specified in RFC 3713 and ISO/IEC 18033-3.

Security level: 128 bits (quantum: 64 bits with Grover's algorithm)

Example usage: 

using var camellia = Camellia128.Create();
camellia.GenerateKey();
camellia.GenerateIV();

byte[] ciphertext = camellia.Encrypt(plaintext);
byte[] decrypted = camellia.Decrypt(ciphertext);

Constructors

Camellia128()

Initializes a new instance of the Camellia128 class.

public Camellia128()

Fields

KeySizeBits

Key size in bits for Camellia-128.

public const int KeySizeBits = 128

Field Value

int

KeySizeBytes

Key size in bytes for Camellia-128.

public const int KeySizeBytes = 16

Field Value

int

Properties

AlgorithmName

Gets the name of the cipher algorithm.

public override string AlgorithmName { get; }

Property Value

string

Examples

"AES-256", "ChaCha20", "AES-256-GCM"

IVSize

Gets the required IV/nonce size in bytes for the current mode.

public override int IVSize { get; }

Property Value

int

Methods

Create()

Creates a new instance of the Camellia128 cipher.

public static Camellia128 Create()

Returns

Camellia128

A new Camellia-128 cipher instance.

CreateCipherDecryptor(ReadOnlySpan<byte>, ReadOnlySpan<byte>)

Creates a decryptor transform using the specified key and IV.

protected override ICipherTransform CreateCipherDecryptor(ReadOnlySpan<byte> key, ReadOnlySpan<byte> iv)

Parameters

key ReadOnlySpan<byte>

The secret key.

iv ReadOnlySpan<byte>

The initialization vector or nonce.

Returns

ICipherTransform

A new cipher decryptor transform.

CreateCipherEncryptor(ReadOnlySpan<byte>, ReadOnlySpan<byte>)

Creates an encryptor transform using the specified key and IV.

protected override ICipherTransform CreateCipherEncryptor(ReadOnlySpan<byte> key, ReadOnlySpan<byte> iv)

Parameters

key ReadOnlySpan<byte>

The secret key.

iv ReadOnlySpan<byte>

The initialization vector or nonce.

Returns

ICipherTransform

A new cipher encryptor transform.

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