mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-10-18 14:21:06 +00:00
Document parameter preconditions in CAMELLIA module
This commit is contained in:
Hanno Becker
parent
54b789aa74
commit
7a16aaddba
|
|
@ -72,52 +72,68 @@ mbedtls_camellia_context;
|
||||||
#endif /* MBEDTLS_CAMELLIA_ALT */
|
#endif /* MBEDTLS_CAMELLIA_ALT */
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Initialize CAMELLIA context
|
* \brief Initialize a CAMELLIA context.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context to be initialized
|
* \param ctx The CAMELLIA context to be initialized.
|
||||||
|
* This must not be \c NULL.
|
||||||
*/
|
*/
|
||||||
void mbedtls_camellia_init( mbedtls_camellia_context *ctx );
|
void mbedtls_camellia_init( mbedtls_camellia_context *ctx );
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Clear CAMELLIA context
|
* \brief Clear a CAMELLIA context.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context to be cleared
|
* \param ctx The CAMELLIA context to be cleared. May be \c NULL,
|
||||||
|
* in which case this function is a no-op. If it is not
|
||||||
|
* \c NULL, it must be initialized.
|
||||||
*/
|
*/
|
||||||
void mbedtls_camellia_free( mbedtls_camellia_context *ctx );
|
void mbedtls_camellia_free( mbedtls_camellia_context *ctx );
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA key schedule (encryption)
|
* \brief Perform a CAMELLIA key schedule (encryption).
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context to be initialized
|
* \param ctx The CAMELLIA context to use. This must be initialized.
|
||||||
* \param key encryption key
|
* \param key The encryption key to use. Must be a readable buffer
|
||||||
* \param keybits must be 128, 192 or 256
|
* of size \p keybits bits.
|
||||||
|
* \param keybits The length of \p key in Bits. Must be either \c 128,
|
||||||
|
* \c 192 or \c 256.
|
||||||
*
|
*
|
||||||
* \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA
|
* \return \c 0 if successful.
|
||||||
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key,
|
int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx,
|
||||||
unsigned int keybits );
|
const unsigned char *key,
|
||||||
|
unsigned int keybits );
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA key schedule (decryption)
|
* \brief Perform a CAMELLIA key schedule (decryption).
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context to be initialized
|
* \param ctx The CAMELLIA context to use. This must be initialized.
|
||||||
* \param key decryption key
|
* \param key The decryption key. Must be a readable buffer
|
||||||
* \param keybits must be 128, 192 or 256
|
* of size \p keybits bits.
|
||||||
|
* \param keybits The length of \p key in Bits. Must be either \c 128,
|
||||||
|
* \c 192 or \c 256.
|
||||||
*
|
*
|
||||||
* \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA
|
* \return \c 0 if successful.
|
||||||
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key,
|
int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx,
|
||||||
unsigned int keybits );
|
const unsigned char *key,
|
||||||
|
unsigned int keybits );
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA-ECB block encryption/decryption
|
* \brief Perform a CAMELLIA-ECB block encryption/decryption.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context
|
* \param ctx The CAMELLIA context to use. Must be initialized
|
||||||
* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
|
* and bound to a key.
|
||||||
* \param input 16-byte input block
|
* \param mode The mode of operation. Must be either
|
||||||
* \param output 16-byte output block
|
* #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT.
|
||||||
|
* \param input The input block. Must be a readable buffer
|
||||||
|
* of size \c 16 Bytes.
|
||||||
|
* \param output The output block. Must be a writable buffer
|
||||||
|
* of size \c 16 Bytes.
|
||||||
*
|
*
|
||||||
* \return 0 if successful
|
* \return \c 0 if successful.
|
||||||
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
|
int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
|
||||||
int mode,
|
int mode,
|
||||||
|
|
@ -126,9 +142,7 @@ int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
|
||||||
|
|
||||||
#if defined(MBEDTLS_CIPHER_MODE_CBC)
|
#if defined(MBEDTLS_CIPHER_MODE_CBC)
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA-CBC buffer encryption/decryption
|
* \brief Perform a CAMELLIA-CBC buffer encryption/decryption.
|
||||||
* Length should be a multiple of the block
|
|
||||||
* size (16 bytes)
|
|
||||||
*
|
*
|
||||||
* \note Upon exit, the content of the IV is updated so that you can
|
* \note Upon exit, the content of the IV is updated so that you can
|
||||||
* call the function same function again on the following
|
* call the function same function again on the following
|
||||||
|
|
@ -138,15 +152,24 @@ int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
|
||||||
* IV, you should either save it manually or use the cipher
|
* IV, you should either save it manually or use the cipher
|
||||||
* module instead.
|
* module instead.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context
|
* \param ctx The CAMELLIA context to use. Must be initialized
|
||||||
* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
|
* and bound to a key.
|
||||||
* \param length length of the input data
|
* \param mode The mode of operation. Possible values are
|
||||||
* \param iv initialization vector (updated after use)
|
* #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT.
|
||||||
* \param input buffer holding the input data
|
* \param length The length in Bytes of the input data.
|
||||||
* \param output buffer holding the output data
|
* Must be a multiple of \c 16.
|
||||||
|
* \param iv The initialization vector. This must be RW buffer
|
||||||
|
* of length \c 16 Bytes. It is updated to allow streaming
|
||||||
|
* use as explained above.
|
||||||
|
* \param input The buffer holding the input data. Must point to a readable
|
||||||
|
* buffer of length \p length Bytes. May be \c NULL if
|
||||||
|
* `length == 0`.
|
||||||
|
* \param input The buffer holding the output data. Must point to a writable
|
||||||
|
* buffer of length \p length Bytes. May be \c NULL if
|
||||||
|
* `length == 0`.
|
||||||
*
|
*
|
||||||
* \return 0 if successful, or
|
* \return \c 0 if successful.
|
||||||
* MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
|
int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
|
||||||
int mode,
|
int mode,
|
||||||
|
|
@ -158,11 +181,13 @@ int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
|
||||||
|
|
||||||
#if defined(MBEDTLS_CIPHER_MODE_CFB)
|
#if defined(MBEDTLS_CIPHER_MODE_CFB)
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA-CFB128 buffer encryption/decryption
|
* \brief Perform a CAMELLIA-CFB128 buffer encryption/decryption.
|
||||||
*
|
*
|
||||||
* Note: Due to the nature of CFB you should use the same key schedule for
|
* \note Due to the nature of CFB you should use the same key
|
||||||
* both encryption and decryption. So a context initialized with
|
* schedule for both encryption and decryption. So a
|
||||||
* mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
|
* context initialized with mbedtls_camellia_setkey_enc()
|
||||||
|
* for both #MBEDTLS_CAMELLIA_ENCRYPT and
|
||||||
|
* #MBEDTLS_CAMELLIA_DECRYPT.
|
||||||
*
|
*
|
||||||
* \note Upon exit, the content of the IV is updated so that you can
|
* \note Upon exit, the content of the IV is updated so that you can
|
||||||
* call the function same function again on the following
|
* call the function same function again on the following
|
||||||
|
|
@ -172,16 +197,26 @@ int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
|
||||||
* IV, you should either save it manually or use the cipher
|
* IV, you should either save it manually or use the cipher
|
||||||
* module instead.
|
* module instead.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context
|
* \param ctx The CAMELLIA context to use. Must be initialized
|
||||||
* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
|
* and bound to a key.
|
||||||
* \param length length of the input data
|
* \param mode The mode of operation. Possible values are
|
||||||
* \param iv_off offset in IV (updated after use)
|
* #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT.
|
||||||
* \param iv initialization vector (updated after use)
|
* \param length The length of the input data. Any value is allowed.
|
||||||
* \param input buffer holding the input data
|
* \param iv_off The current offset in the IV. This must be smaller
|
||||||
* \param output buffer holding the output data
|
* than \c 16. It is updated after this call to allow
|
||||||
|
* the aforementioned streaming usage.
|
||||||
|
* \param iv The initialization vector. Must be an RW buffer of
|
||||||
|
* length \c 16 Bytes. It is updated after this call to
|
||||||
|
* allow the aforementioned streaming usage.
|
||||||
|
* \param input The buffer holding the input data. Must be a readable
|
||||||
|
* buffer of size \p length Bytes. May be \c NULL if
|
||||||
|
* \p length is \c 0.
|
||||||
|
* \param output The buffer to hold the output data. Must be a writable
|
||||||
|
* buffer of length \p length Bytes. May be \c NULL if
|
||||||
|
* \p length is \c 0.
|
||||||
*
|
*
|
||||||
* \return 0 if successful, or
|
* \return \c 0 if successful.
|
||||||
* MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA.
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
|
int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
|
||||||
int mode,
|
int mode,
|
||||||
|
|
@ -194,11 +229,13 @@ int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
|
||||||
|
|
||||||
#if defined(MBEDTLS_CIPHER_MODE_CTR)
|
#if defined(MBEDTLS_CIPHER_MODE_CTR)
|
||||||
/**
|
/**
|
||||||
* \brief CAMELLIA-CTR buffer encryption/decryption
|
* \brief CAMELLIA-CTR buffer encryption/decryption
|
||||||
*
|
*
|
||||||
* Note: Due to the nature of CTR you should use the same key schedule for
|
* \note Due to the nature of CTR you should use the same key
|
||||||
* both encryption and decryption. So a context initialized with
|
* schedule for both encryption and decryption. So a
|
||||||
* mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and MBEDTLS_CAMELLIA_DECRYPT.
|
* context initialized with mbedtls_camellia_setkey_enc()
|
||||||
|
* for both #MBEDTLS_CAMELLIA_ENCRYPT and
|
||||||
|
* #MBEDTLS_CAMELLIA_DECRYPT.
|
||||||
*
|
*
|
||||||
* \warning You must never reuse a nonce value with the same key. Doing so
|
* \warning You must never reuse a nonce value with the same key. Doing so
|
||||||
* would void the encryption for the two messages encrypted with
|
* would void the encryption for the two messages encrypted with
|
||||||
|
|
@ -238,24 +275,31 @@ int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
|
||||||
* more than 2**32 messages with the same key.
|
* more than 2**32 messages with the same key.
|
||||||
*
|
*
|
||||||
* Note that for both stategies, sizes are measured in blocks and
|
* Note that for both stategies, sizes are measured in blocks and
|
||||||
* that a CAMELLIA block is 16 bytes.
|
* that a CAMELLIA block is \c 16 bytes.
|
||||||
*
|
*
|
||||||
* \warning Upon return, \p stream_block contains sensitive data. Its
|
* \warning Upon return, \p stream_block contains 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
|
||||||
* securely discarded as soon as it's no longer needed.
|
* securely discarded as soon as it's no longer needed.
|
||||||
*
|
*
|
||||||
* \param ctx CAMELLIA context
|
* \param ctx The CAMELLIA context to use.
|
||||||
* \param length The length of the data
|
* \param length The length of the input data. Any value is allowed.
|
||||||
* \param nc_off The offset in the current stream_block (for resuming
|
* \param nc_off The offset in the current \p stream_block (for resuming
|
||||||
* within current cipher stream). The offset pointer to
|
* within current cipher stream). The offset pointer to
|
||||||
* should be 0 at the start of a stream.
|
* should be \c 0 at the start of a stream. It is updated
|
||||||
* \param nonce_counter The 128-bit nonce and counter.
|
* at the end of this call.
|
||||||
* \param stream_block The saved stream-block for resuming. Is overwritten
|
* \param nonce_counter The 128-bit nonce and counter. Must be an RW buffer of
|
||||||
* by the function.
|
* length \c 16 Bytes.
|
||||||
* \param input The input data stream
|
* \param stream_block The saved stream-block for resuming. Must be an
|
||||||
* \param output The output data stream
|
* RW buffer of length \c 16 Bytes.
|
||||||
|
* \param input The input data stream. Must be a readable buffer of
|
||||||
|
* size \p length Bytes. This may be \c NULL if \p length
|
||||||
|
* is \c 0.
|
||||||
|
* \param output The output data stream. Must be a writable buffer of
|
||||||
|
* size \p length Bytes. This may be \c NULL if \p length
|
||||||
|
* is \c 0.
|
||||||
*
|
*
|
||||||
* \return 0 if successful
|
* \return \c 0 if successful.
|
||||||
|
* \return A negative error code on failure.
|
||||||
*/
|
*/
|
||||||
int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx,
|
int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx,
|
||||||
size_t length,
|
size_t length,
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue