Function nrfxlib_sys::ocrypto_chacha20_poly1305_update_aad

pub unsafe extern "C" fn ocrypto_chacha20_poly1305_update_aad(
    ctx: *mut ocrypto_chacha20_poly1305_ctx,
    a: *const u8,
    a_len: usize
)

ChaCha20-Poly1305 incremental aad input.

The generator state * ctx - is updated to include an additional authenticated data chunk * a - .

This function can be called repeatedly until the whole data is processed.

• ctx - Generator state.
• a - Additional authenticated data.
• a_len - Length of * a - .

@remark Initialization of the generator state * ctx - through * ocrypto_chacha20_poly1305_init - is required before this function can be called.

@remark * ocrypto_chacha20_poly1305_update_aad - must be called before any call to * ocrypto_chacha20_poly1305_update_enc - or * ocrypto_chacha20_poly1305_update_dec - .