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Theodore Y. Ts'o

Biography: 

Theodore Y. Ts'o is a software developer known for for his contributions to the Linux kernel particularly with the file systems. He is the primary developer and maintainer of e2fsprogs, the userspace utilities for the ext2 and ext3 filesystems, and is a maintainer for the ext4 file system.

In 1994, he created /dev/random and the corresponding kernel driver, which was Linux's (and Unix's) first kernel interface that provided high quality cryptographic random numbers to user programs.

Facts

Ts'o was awarded the Free Software Foundation's 2006 Award for the Advancement of Free Software.

Ts'o is a Debian Developer, maintaining several packages, mostly filesystem-related ones, including e2fsprogs since March 2003.

He was a member of the Security Area Directorate for the Internet Engineering Task Force, and was one of the chairs for the IPsec working group.

Pictures: 
References

http://en.wikipedia.org/wiki/Theodore_Y._Ts%27o