  The protection of transactions privacy is extremely important for the user.
With stealth address protocols (SAP), users can receive assets on stealth
addresses that they do not link to their stealth meta-addresses. SAP can be
generated using various cryptographic approaches. DKSAP uses elliptic curve
multiplication and hashing of the resulting shared secret. Another approach is
to use a bilinear mapping. The paper presents two SA protocols that use
elliptic curve pairing as a cryptographic solution. ECPDKSAP is a pairing-based
protocol that includes viewing key and spending key, while ECPSKSAP is a
pairing-based protocol that uses a single key with which spending and the
viewing key are derived. We obtain that ECPDKSAP has better results than DKSAP
with the view tag. ECPSKSAP is significantly slower, but it represents an
interesting theoretical result, because it uses only one private key.
