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aes: Clarify IV requirements for OFB mode

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Combine the two "must be unique" phrases into one for clarity. An IV
that is universally unique is also unique for each encryption operation.
This commit is contained in:
Jaeden Amero 2018-06-08 10:34:08 +01:00 committed by Simon Butcher
parent 5db13621ec
commit cb2c935a54
1 changed files with 3 additions and 3 deletions
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6
include/mbedtls/aes.h
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@ -324,9 +324,9 @@ int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx,
* you must either save it manually or use the cipher module * you must either save it manually or use the cipher module
* instead. * instead.
* *
* \warning For the OFB mode, the initiallisation vector must be unique and * \warning For the OFB mode, the initialisation vector must be unique
* must be unique for every encryption operation. Reuse of an * every encryption operation. Reuse of an initialisation vector
* initialisation vector will compromise security. * will compromise security.
* *
* \param ctx The AES context to use for encryption or decryption. * \param ctx The AES context to use for encryption or decryption.
* \param length The length of the input data. * \param length The length of the input data.