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Improve documentation of CBC functions

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Manuel Pégourié-Gonnard 2015-01-23 16:19:47 +00:00
parent cfa9a45dd6
commit 2be147a9cb
4 changed files with 72 additions and 0 deletions
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16
include/polarssl/des.h
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@ -214,6 +214,14 @@ int des_crypt_ecb( des_context *ctx,
/**
* \brief DES-CBC buffer encryption/decryption
*
* \note Upon exit, the content of the IV is updated so that you can
* call the function same function again on the following
* block(s) of data and get the same result as if it was
* encrypted in one call. This allows a "streaming" usage.
* If on the other hand you need to retain the contents of the
* IV, you should either save it manually or use the cipher
* module instead.
*
* \param ctx DES context
* \param mode DES_ENCRYPT or DES_DECRYPT
* \param length length of the input data
@ -246,6 +254,14 @@ int des3_crypt_ecb( des3_context *ctx,
/**
* \brief 3DES-CBC buffer encryption/decryption
*
* \note Upon exit, the content of the IV is updated so that you can
* call the function same function again on the following
* block(s) of data and get the same result as if it was
* encrypted in one call. This allows a "streaming" usage.
* If on the other hand you need to retain the contents of the
* IV, you should either save it manually or use the cipher
* module instead.
*
* \param ctx 3DES context
* \param mode DES_ENCRYPT or DES_DECRYPT
* \param length length of the input data