From 1b30ec17ae65d4766c7f10c62ba488a61ae1111c Mon Sep 17 00:00:00 2001 From: Paul Schaub Date: Sun, 17 Mar 2024 18:36:31 +0100 Subject: [PATCH] Add some information about the SED packet --- book/source/decryption.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/book/source/decryption.md b/book/source/decryption.md index f0991ef..5e9ef76 100644 --- a/book/source/decryption.md +++ b/book/source/decryption.md @@ -181,4 +181,6 @@ Each chunk is decrypted using AEAD using the message key and an IV with appended ## SED -Legacy mode: may be decrypted, but not produced. +The Symmetrically Encrypted Data packet predates the SEIPD packet and is nowadays deprecated. +Due to the lack of integrity protection, this packet is susceptible to a whole class of attacks where the attacker modifies the ciphertext. +Therefore, implementations MUST NOT produce this packet and are encouraged not to accept incoming SED packages from untrusted sources. \ No newline at end of file