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Slightly tune ARIA CTR documentation

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Manuel Pégourié-Gonnard 2018-05-24 11:51:58 +02:00
parent 8a1b2c8806
commit f5842864d8
1 changed files with 4 additions and 4 deletions
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8
include/mbedtls/aria.h
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@ -263,7 +263,7 @@ int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
* updated by this function. * updated by this function.
* *
* With this strategy, you must not encrypt more than 2**128 * With this strategy, you must not encrypt more than 2**128
* blocks of data. * blocks of data with the same key.
* *
* 2. You can encrypt separate messages by dividing the \p * 2. You can encrypt separate messages by dividing the \p
* nonce_counter buffer in two areas: the first one used for a * nonce_counter buffer in two areas: the first one used for a
@ -276,7 +276,7 @@ int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
* set the first 12 bytes of \p nonce_counter to your chosen nonce * set the first 12 bytes of \p nonce_counter to your chosen nonce
* value, the last 4 to 0, and \p nc_off to 0 (which will cause \p * value, the last 4 to 0, and \p nc_off to 0 (which will cause \p
* stream_block to be ignored). That way, you can encrypt at most * stream_block to be ignored). That way, you can encrypt at most
* 2**96 messages of up to 2**32 blocks each. * 2**96 messages of up to 2**32 blocks each with the same key.
* *
* The per-message nonce (or information sufficient to reconstruct * The per-message nonce (or information sufficient to reconstruct
* it) needs to be communicated with the ciphertext and must be unique. * it) needs to be communicated with the ciphertext and must be unique.
@ -286,8 +286,8 @@ int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
* for example, with 96-bit random nonces, you should not encrypt * for example, with 96-bit random nonces, you should not encrypt
* more than 2**32 messages with the same key. * more than 2**32 messages with the same key.
* *
* Note that for both stategies, the limit is in number of blocks * Note that for both stategies, sizes are measured in blocks and
* and that an ARIA block is 16 bytes. * that an ARIA block is 16 bytes.
* *
* \warning Upon return, \p stream_block constains sensitive data. Its * \warning Upon return, \p stream_block constains sensitive data. Its
* content must not be written to insecure storage and should be * content must not be written to insecure storage and should be