Prior to his position as Chairman of IETF, he served as Security Area Director of the organization. He also became chairman of the Secure MIME (S/MIME) Working Group. He also served as co-chair of the [[IEEE]] 802.10 Working Group and became representative to IEEE 802 Working Group Executive Committee.
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Prior to his position as Chairman of IETF, he served as Security Area Director of the organization. He also became chairman of the '''Secure MIME (S/MIME) Working Group''' and held the position of co-chair of the '''[[IEEE]] 802.10 Working Group''' and became representative to IEEE '''802 Working Group''' Executive Committee.