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RFC 2040, "The RC5, RC5-CBC, RC5-CBC-Pad, and RC5-CTS Algorithms", October 1996

Source of RFC: Legacy
See Also: RFC 2040 w/ inline errata

Errata ID: 587
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Bob Baldwin
Date Reported: 2004-03-22

Section 8 says:

6. Decrypt En to create Pn-1.

It should say:

6. Decrypt En and exclusive-or with Cn-2 to create Pn-1.
   For short messages where Cn-2 does not exist, use the IV.

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