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Document parameter preconditions for the ARIA module

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This commit is contained in:
Hanno Becker 2018-12-11 21:29:27 +00:00
parent 54b789aa74
commit 139d8313d9
1 changed files with 38 additions and 13 deletions
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51
include/mbedtls/aria.h
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@ -91,14 +91,15 @@ mbedtls_aria_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 ARIA context to initialize. * \param ctx The ARIA context to initialize. Must not be \c NULL.
*/ */
void mbedtls_aria_init( mbedtls_aria_context *ctx ); void mbedtls_aria_init( mbedtls_aria_context *ctx );
/** /**
* \brief This function releases and clears the specified ARIA context. * \brief This function releases and clears the specified ARIA context.
* *
* \param ctx The ARIA context to clear. * \param ctx The ARIA context to clear. May be \c NULL, in which
* case this function is a no-op.
*/ */
void mbedtls_aria_free( mbedtls_aria_context *ctx ); void mbedtls_aria_free( mbedtls_aria_context *ctx );
@ -106,14 +107,16 @@ void mbedtls_aria_free( mbedtls_aria_context *ctx );
* \brief This function sets the encryption key. * \brief This function sets the encryption key.
* *
* \param ctx The ARIA context to which the key should be bound. * \param ctx The ARIA context to which the key should be bound.
* \param key The encryption key. * Must be initialized.
* \param key The encryption key. 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>
* <li>256 bits</li></ul> * <li>256 bits</li></ul>
* *
* \return \c 0 on success or #MBEDTLS_ERR_ARIA_BAD_INPUT_DATA * \return \c 0 on success.
* on failure. * \return A negative error code on failure.
*/ */
int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx, int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx,
const unsigned char *key, const unsigned char *key,
@ -123,13 +126,16 @@ int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx,
* \brief This function sets the decryption key. * \brief This function sets the decryption key.
* *
* \param ctx The ARIA context to which the key should be bound. * \param ctx The ARIA context to which the key should be bound.
* \param key The decryption key. * Must be initialized.
* \param key The decryption key. 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>
* <li>256 bits</li></ul> * <li>256 bits</li></ul>
* *
* \return \c 0 on success, or #MBEDTLS_ERR_ARIA_BAD_INPUT_DATA on failure. * \return \c 0 on success.
* \return A negative error code on failure.
*/ */
int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx, int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx,
const unsigned char *key, const unsigned char *key,
@ -148,10 +154,12 @@ int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx,
* call to this API with the same context. * call to this API with the same context.
* *
* \param ctx The ARIA context to use for encryption or decryption. * \param ctx The ARIA context to use for encryption or decryption.
* Must be initialized.
* \param input The 16-Byte buffer holding the input data. * \param input The 16-Byte buffer holding the input data.
* \param output The 16-Byte buffer holding the output data. * \param output The 16-Byte buffer holding the output data.
* \return \c 0 on success. * \return \c 0 on success.
* \return A negative error code on failure.
*/ */
int mbedtls_aria_crypt_ecb( mbedtls_aria_context *ctx, int mbedtls_aria_crypt_ecb( mbedtls_aria_context *ctx,
const unsigned char input[MBEDTLS_ARIA_BLOCKSIZE], const unsigned char input[MBEDTLS_ARIA_BLOCKSIZE],
@ -183,16 +191,20 @@ int mbedtls_aria_crypt_ecb( mbedtls_aria_context *ctx,
* *
* *
* \param ctx The ARIA context to use for encryption or decryption. * \param ctx The ARIA context to use for encryption or decryption.
* Must be initialized.
* \param mode The ARIA operation: #MBEDTLS_ARIA_ENCRYPT or * \param mode The ARIA operation: #MBEDTLS_ARIA_ENCRYPT or
* #MBEDTLS_ARIA_DECRYPT. * #MBEDTLS_ARIA_DECRYPT.
* \param length The length of the input data in Bytes. This must be a * \param length The length of the input data in Bytes. This must be a
* multiple of the block size (16 Bytes). * multiple of the block size (16 Bytes).
* \param iv Initialization vector (updated after use). * \param iv Initialization vector (updated after use).
* Must be a readable buffer of size 16 Bytes.
* \param input The buffer holding the input data. * \param input The buffer holding the input data.
* May be \c NULL if `length == 0`.
* \param output The buffer holding the output data. * \param output The buffer holding the output data.
* May be \c NULL if `length == 0`.
* *
* \return \c 0 on success, or #MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH * \return \c 0 on success.
* on failure. * \return A negative error code on failure.
*/ */
int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx, int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx,
int mode, int mode,
@ -227,15 +239,21 @@ int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx,
* *
* *
* \param ctx The ARIA context to use for encryption or decryption. * \param ctx The ARIA context to use for encryption or decryption.
* Must be initialized.
* \param mode The ARIA operation: #MBEDTLS_ARIA_ENCRYPT or * \param mode The ARIA operation: #MBEDTLS_ARIA_ENCRYPT or
* #MBEDTLS_ARIA_DECRYPT. * #MBEDTLS_ARIA_DECRYPT.
* \param length The length of the input data. * \param length The length of the input data.
* \param iv_off The offset in IV (updated after use). * \param iv_off The offset in IV (updated after use).
* Must not be larger than 15.
* \param iv The initialization vector (updated after use). * \param iv The initialization vector (updated after use).
* Must be a readable buffer of size 16 Bytes.
* \param input The buffer holding the input data. * \param input The buffer holding the input data.
* May be \c NULL if `length == 0`.
* \param output The buffer holding the output data. * \param output The buffer holding the output data.
* May be \c NULL if `length == 0`.
* *
* \return \c 0 on success. * \return \c 0 on success.
* \return A negative error code on failure.
*/ */
int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx, int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
int mode, int mode,
@ -305,17 +323,24 @@ int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx,
* securely discarded as soon as it's no longer needed. * securely discarded as soon as it's no longer needed.
* *
* \param ctx The ARIA context to use for encryption or decryption. * \param ctx The ARIA context to use for encryption or decryption.
* Must be initialized.
* \param length The length of the input data. * \param length The length of the input data.
* \param nc_off The offset in the current \p stream_block, for * \param nc_off The offset in the current \p stream_block, for
* resuming within the current cipher stream. The * resuming within the current cipher stream. The
* offset pointer should be 0 at the start of a stream. * offset pointer should be 0 at the start of a stream.
* \param nonce_counter The 128-bit nonce and counter. * Must not be larger than 15.
* \param stream_block The saved stream block for resuming. This is * \param nonce_counter The 128-bit nonce and counter. Must point to
* overwritten by the function. * an RW-buffer of length 16 bytes.
* \param stream_block The saved stream block for resuming. Must point to
* an RW-buffer of length 16 bytes.
* This is overwritten by the function.
* \param input The buffer holding the input data. * \param input The buffer holding the input data.
* May be \c NULL if `length == 0`.
* \param output The buffer holding the output data. * \param output The buffer holding the output data.
* May be \c NULL if `length == 0`.
* *
* \return \c 0 on success. * \return \c 0 on success.
* \return A negative error code on failure.
*/ */
int mbedtls_aria_crypt_ctr( mbedtls_aria_context *ctx, int mbedtls_aria_crypt_ctr( mbedtls_aria_context *ctx,
size_t length, size_t length,