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Ommit AEAD functions if GCM not defined

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Manuel Pégourié-Gonnard 2013-09-03 16:35:53 +02:00
parent aa9ffc5e98
commit 43a4780b03
3 changed files with 58 additions and 28 deletions
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13
include/polarssl/cipher.h
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@ -30,6 +30,12 @@
#ifndef POLARSSL_CIPHER_H
#define POLARSSL_CIPHER_H
#include "config.h"
#if defined(POLARSSL_GCM_C)
#define POLARSSL_CIPHER_MODE_AEAD
#endif
#include <string.h>
#if defined(_MSC_VER) && !defined(inline)
@ -457,15 +463,13 @@ int cipher_set_iv( cipher_context_t *ctx,
* \brief Finish preparation of the given context
*
* \param ctx generic cipher context
* \param ad Additional data for AEAD ciphers, or discarded.
* May be NULL only if ad_len is 0.
* \param ad_len Length of ad for AEAD ciphers, or discarded.
*
* \returns 0 on success, POLARSSL_ERR_CIPHER_BAD_INPUT_DATA
* if parameter verification fails.
*/
int cipher_reset( cipher_context_t *ctx );
#if defined(POLARSSL_CIPHER_MODE_AEAD)
/**
* \brief Add additional data (for AEAD ciphers).
* This function has no effect for non-AEAD ciphers.
@ -483,6 +487,7 @@ int cipher_reset( cipher_context_t *ctx );
*/
int cipher_update_ad( cipher_context_t *ctx,
const unsigned char *ad, size_t ad_len );
#endif /* POLARSSL_CIPHER_MODE_AEAD */
/**
* \brief Generic cipher update function. Encrypts/decrypts
@ -530,6 +535,7 @@ int cipher_update( cipher_context_t *ctx, const unsigned char *input, size_t ile
int cipher_finish( cipher_context_t *ctx,
unsigned char *output, size_t *olen );
#if defined(POLARSSL_CIPHER_MODE_AEAD)
/**
* \brief Write tag for AEAD ciphers.
* No effect for other ciphers.
@ -556,6 +562,7 @@ int cipher_write_tag( cipher_context_t *ctx,
*/
int cipher_check_tag( cipher_context_t *ctx,
const unsigned char *tag, size_t tag_len );
#endif /* POLARSSL_CIPHER_MODE_AEAD */
/**
* \brief Checkup routine