Function nrfxlib_sys::ocrypto_chacha20_poly1305_final_dec

source · 
pub unsafe extern "C" fn ocrypto_chacha20_poly1305_final_dec(
    ctx: *mut ocrypto_chacha20_poly1305_ctx,
    tag: *const u8
) -> c_int
Expand description

ChaCha20-Poly1305 final decoder step.

The generator state * ctx - is used to finalize the decryption and check the tag.

  • ctx - Generator state.
  • tag - Received authentication tag.

Returns 0 If * tag - is valid. Returns -1 Otherwise.