RFC 2950
Telnet Encryption: CAST-128 64 bit Cipher Feedback, September 2000
DOI: 10.17487/RFC2950
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Abstract
This document specifies how to use the CAST-128 encryption algorithm in cipher feedback mode with the telnet encryption option. Two key sizes are defined: 40 bit and 128 bit. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.