Cryptography, Blind Signatures, Google, VPN, Privacy.
messages are correlated, they set their guess r' to this messy value (BM_1 / h(m_2))^d. Let’s see how the equivalence check plays out: BM_1 == h(m_2) * r' ^ e mod N == h(m_2) * (h(m_1)/h(m_2))^d * r_1)^e mod N == h(m_2) * h(m_1)/h(m_2) * r_1^e mod N == h(m_1) * r_1^e mod N And this check actually