L-collision Attacks against Randomized MACs. - Michael Semanko (CRYPTO, 2000)

The Power of RSA Inversion Oracles and the Security of Chaum's RSA-Based Blind Signature Scheme. - Mihir Bellare; Chanathip Namprempre; David Pointcheval; Michael Semanko (Financial Cryptography, 2001)

The One-More-RSA-Inversion Problems and the Security of Chaum's Blind Signature Scheme. - Mihir Bellare; Chanathip Namprempre; David Pointcheval; Michael Semanko (J. Cryptol., 2003)