Aegis256State

AEGIS-256 encryption/decryption state.

Manages the lifecycle of an aegis256_state object, ensuring proper initialization and cleanup in a @nogc and @trusted context.

struct Aegis256State {

this(const(ubyte)[] key, const(ubyte)[] nonce, const(ubyte)[] ad);

~this();

this(this);

int encryptUpdate(ubyte[] ciphertext, size_t* written, const(ubyte)[] message);

int encryptDetachedFinal(ubyte[] ciphertext, size_t* written, ubyte[] mac, size_t maclen);

int decryptDetachedUpdate(ubyte[] plaintext, size_t* written, const(ubyte)[] ciphertext);

int decryptDetachedFinal(ubyte[] plaintext, size_t* written, const(ubyte)[] mac, size_t maclen);

}

Constructors

this this(const(ubyte)[] key, const(ubyte)[] nonce, const(ubyte)[] ad): Initializes the AEGIS-256 state with the provided key, nonce, and associated data.

Destructor

~this ~this(): Destructor to clean up the state.

Postblit

this(this) this(this): Disabled copy constructor to prevent state duplication.

Members

Functions

decryptDetachedFinal int decryptDetachedFinal(ubyte[] plaintext, size_t* written, const(ubyte)[] mac, size_t maclen): Finalizes decryption in detached mode, verifying the MAC and producing final plaintext.
decryptDetachedUpdate int decryptDetachedUpdate(ubyte[] plaintext, size_t* written, const(ubyte)[] ciphertext): Decrypts a ciphertext chunk, producing plaintext.
encryptDetachedFinal int encryptDetachedFinal(ubyte[] ciphertext, size_t* written, ubyte[] mac, size_t maclen): Finalizes encryption in detached mode, producing the final ciphertext and MAC.
encryptUpdate int encryptUpdate(ubyte[] ciphertext, size_t* written, const(ubyte)[] message): Encrypts a message chunk, producing ciphertext.

Examples

ubyte[32] key = [0x01, 0x02, ..., 0x20];
ubyte[32] nonce = [0x00, 0x01, ..., 0x1F];
ubyte[] ad = [0x41, 0x42, 0x43]; // "ABC"
ubyte[] message = [0x48, 0x65, 0x6C, 0x6C, 0x6F]; // "Hello"
ubyte[128] ciphertext;
ubyte[16] mac;
size_t written;

auto state = Aegis256State(key, nonce, ad);
state.encryptUpdate(ciphertext[], &written, message);
state.encryptDetachedFinal(ciphertext[written .. $], &written, mac[], 16);

Aegis256State

Constructors

Destructor

Postblit

Members

Functions

Examples

Meta

Source