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Update content/client-server-api/modules/end_to_end_encryption.md

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Co-authored-by: Denis Kasak <dkasak@termina.org.uk>
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Tulir Asokan 2026-03-05 17:35:22 +02:00 committed by GitHub
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content/client-server-api/modules/end_to_end_encryption.md
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@ -270,9 +270,9 @@ key, and encrypts the file using AES-CTR. The counter is 64 bits long,
starting at 0 and prefixed by a random 64-bit Initialization Vector (IV),
which together form a 128-bit unique counter block.
Clients MUST generate both the AES key and IV using a secure random
source and MUST NOT use the same key or IV multiple times. The latter
64 bits of the 128-bit counter block MUST start at zero.
Clients MUST generate both the AES key and IV using a cryptographically
secure random source and MUST NOT use the same key or IV multiple
times. The latter 64 bits of the 128-bit counter block MUST start at zero.
{{% boxes/warning %}}
An IV must never be used multiple times with the same key. This implies