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Fix dependencies: GCM != AEAD != CCM

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Manuel Pégourié-Gonnard 2014-06-24 15:26:28 +02:00
parent 5bfd968e01
commit 8f625632bb
3 changed files with 35 additions and 46 deletions
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27
include/polarssl/cipher.h
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@ -36,7 +36,7 @@
#include POLARSSL_CONFIG_FILE
#endif
#if defined(POLARSSL_GCM_C)
#if defined(POLARSSL_GCM_C) || defined(POLARSSL_CCM_C)
#define POLARSSL_CIPHER_MODE_AEAD
#endif
@ -534,25 +534,21 @@ int cipher_set_iv( cipher_context_t *ctx,
*/
int cipher_reset( cipher_context_t *ctx );
#if defined(POLARSSL_CIPHER_MODE_AEAD)
#if defined(POLARSSL_GCM_C)
/**
* \brief Add additional data (for AEAD ciphers).
* This function has no effect for non-AEAD ciphers.
* For AEAD ciphers, it may or may not be called
* repeatedly, and/or interleaved with calls to
* cipher_udpate(), depending on the cipher.
* E.g. for GCM is must be called exactly once, right
* after cipher_reset().
* Currently only supported with GCM.
* Must be called exactly once, after cipher_reset().
*
* \param ctx generic cipher context
* \param ad Additional data to use.
* \param ad_len Length of ad.
*
* \returns 0 on success, or a specific error code.
* \return 0 on success, or a specific error code.
*/
int cipher_update_ad( cipher_context_t *ctx,
const unsigned char *ad, size_t ad_len );
#endif /* POLARSSL_CIPHER_MODE_AEAD */
#endif /* POLARSSL_GCM_C */
/**
* \brief Generic cipher update function. Encrypts/decrypts
@ -606,10 +602,10 @@ int cipher_update( cipher_context_t *ctx, const unsigned char *input,
int cipher_finish( cipher_context_t *ctx,
unsigned char *output, size_t *olen );
#if defined(POLARSSL_CIPHER_MODE_AEAD)
#if defined(POLARSSL_GCM_C)
/**
* \brief Write tag for AEAD ciphers.
* No effect for other ciphers.
* Currently only supported with GCM.
* Must be called after cipher_finish().
*
* \param ctx Generic cipher context
@ -623,9 +619,8 @@ int cipher_write_tag( cipher_context_t *ctx,
/**
* \brief Check tag for AEAD ciphers.
* No effect for other ciphers.
* Calling time depends on the cipher:
* for GCM, must be called after cipher_finish().
* Currently only supported with GCM.
* Must be called after cipher_finish().
*
* \param ctx Generic cipher context
* \param tag Buffer holding the tag
@ -635,7 +630,7 @@ 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 */
#endif /* POLARSSL_GCM_C */
/**
* \brief Generic all-in-one encryption/decryption