IP Authentication using Keyed MD5. - Perry Metzger; William Allen Simpson (RFC, 1995)

The ESP DES-CBC Transform. - Phil Karn; Perry Metzger; William Allen Simpson (RFC, 1995)

The ESP Triple DES Transform. - Phil Karn; Perry Metzger; William Allen Simpson (RFC, 1995)

IP Authentication using Keyed SHA. - Perry Metzger; William Allen Simpson (RFC, 1995)

IP Authentication using Keyed SHA1 with Interleaved Padding (IP-MAC). - Perry Metzger; William Allen Simpson (RFC, 2000)

Improving TCP Security with Robust Cookies. - Perry Metzger; William Allen Simpson; Paul Vixie (login Usenix Mag., 2009)

One-Way Cryptography. - Sandy Clark; Travis Goodspeed; Perry Metzger; Zachary Wasserman; Kevin Xu; Matt Blaze (Security Protocols Workshop, 2011)

Why (Special Agent) Johnny (Still) Can't Encrypt: A Security Analysis of the APCO Project 25 Two-Way Radio System. - Sandy Clark; Travis Goodspeed; Perry Metzger; Zachary Wasserman; Kevin Xu; Matt Blaze (USENIX Security Symposium, 2011)