TLS Extension for SEED and HAS-160

Document Type Expired Internet-Draft (tls WG)
Author Chang Lee 
Last updated 2000-07-14
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document proposes the addition of new cipher suites to the TLS protocol 1.0 [TLS] to support SEED and HAS-160. The SEED algorithm is 128-bit symmetric block cipher algorithm. [SEED] The HAS-160 is 160-bit secure hash function, whose block size is 512 bit. [HAS] Both algorithms are developed in Korea since 1997 for stronger communication security. Currently, SEED is widely used and is the mandatory cipher in banking and stock applications in Korea.


Chang Lee (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)