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Fix content and style of constraints documentation

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- Be specific about the constraints: be a readable/writable buffer of length
  X, be an initialized context, be a context initialized and bound to a key...
- Always use full sentences with all the required pronouns.
This commit is contained in:
Manuel Pégourié-Gonnard 2018-12-12 10:20:33 +01:00
parent 35acb099d6
commit ed459e6995
1 changed files with 16 additions and 10 deletions
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26
include/mbedtls/aes.h
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@ -121,14 +121,16 @@ typedef struct mbedtls_aes_xts_context
* It must be the first API called before using * It must be the first API called before using
* the context. * the context.
* *
* \param ctx The AES context to initialize. Must not be \c NULL. * \param ctx The AES context to initialize. This must not be \c NULL.
*/ */
void mbedtls_aes_init( mbedtls_aes_context *ctx ); void mbedtls_aes_init( mbedtls_aes_context *ctx );
/** /**
* \brief This function releases and clears the specified AES context. * \brief This function releases and clears the specified AES context.
* *
* \param ctx The AES context to clear. If \c NULL, no action is taken. * \param ctx The AES context to clear.
* If this is \c NULL, this function does nothing.
* Otherwise, the context must have been at least initialized.
*/ */
void mbedtls_aes_free( mbedtls_aes_context *ctx ); void mbedtls_aes_free( mbedtls_aes_context *ctx );
@ -139,14 +141,16 @@ void mbedtls_aes_free( mbedtls_aes_context *ctx );
* It must be the first API called before using * It must be the first API called before using
* the context. * the context.
* *
* \param ctx The AES XTS context to initialize. Must not be \c NULL. * \param ctx The AES XTS context to initialize. This must not be \c NULL.
*/ */
void mbedtls_aes_xts_init( mbedtls_aes_xts_context *ctx ); void mbedtls_aes_xts_init( mbedtls_aes_xts_context *ctx );
/** /**
* \brief This function releases and clears the specified AES XTS context. * \brief This function releases and clears the specified AES XTS context.
* *
* \param ctx The AES XTS context to clear. If \c NULL, no action is taken. * \param ctx The AES XTS context to clear.
* If this is \c NULL, this function does nothing.
* Otherwise, the context must have been at least initialized.
*/ */
void mbedtls_aes_xts_free( mbedtls_aes_xts_context *ctx ); void mbedtls_aes_xts_free( mbedtls_aes_xts_context *ctx );
#endif /* MBEDTLS_CIPHER_MODE_XTS */ #endif /* MBEDTLS_CIPHER_MODE_XTS */
@ -154,9 +158,10 @@ void mbedtls_aes_xts_free( mbedtls_aes_xts_context *ctx );
/** /**
* \brief This function sets the encryption key. * \brief This function sets the encryption key.
* *
* \param ctx The AES context to which the key should be bound. Must not * \param ctx The AES context to which the key should be bound.
* be \c NULL. * It must be initialized.
* \param key The encryption key. Must not be \c NULL. * \param key The encryption key.
* This must be a readable buffer of size \p keybits bits.
* \param keybits The size of data passed in bits. Valid options are: * \param keybits The size of data passed in bits. Valid options are:
* <ul><li>128 bits</li> * <ul><li>128 bits</li>
* <li>192 bits</li> * <li>192 bits</li>
@ -171,9 +176,10 @@ int mbedtls_aes_setkey_enc( mbedtls_aes_context *ctx, const unsigned char *key,
/** /**
* \brief This function sets the decryption key. * \brief This function sets the decryption key.
* *
* \param ctx The AES context to which the key should be bound. Must not * \param ctx The AES context to which the key should be bound.
* be \c NULL. * It must be initialized.
* \param key The decryption key. Must not be \c NULL. * \param key The decryption key.
* This must be a readable buffer of size \p keybits bits.
* \param keybits The size of data passed. Valid options are: * \param keybits The size of data passed. Valid options are:
* <ul><li>128 bits</li> * <ul><li>128 bits</li>
* <li>192 bits</li> * <li>192 bits</li>