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- Added GCM ciphersuites to TLS implementation

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This commit is contained in:
Paul Bakker 2012-04-18 14:23:57 +00:00
parent 0b22e3e989
commit ca4ab49158
8 changed files with 433 additions and 52 deletions
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10
include/polarssl/gcm.h
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@ -35,6 +35,7 @@
#define GCM_DECRYPT 0
#define POLARSSL_ERR_GCM_AUTH_FAILED -0x0012 /**< Authenticated decryption failed. */
#define POLARSSL_ERR_GCM_BAD_INPUT -0x0014 /**< Bad input parameters to function. */
/**
* \brief GCM context structure
@ -64,6 +65,11 @@ int gcm_init( gcm_context *ctx, const unsigned char *key, unsigned int keysize )
/**
* \brief GCM buffer encryption/decryption using AES
*
* \note On encryption, the output buffer can be the same as the input buffer.
* On decryption, the output buffer cannot be the same as input buffer.
* If buffers overlap, the output buffer must trail at least 8 bytes
* behind the input buffer.
*
* \param ctx GCM context
* \param mode GCM_ENCRYPT or GCM_DECRYPT
* \param length length of the input data
@ -93,6 +99,10 @@ int gcm_crypt_and_tag( gcm_context *ctx,
/**
* \brief GCM buffer authenticated decryption using AES
*
* \note On decryption, the output buffer cannot be the same as input buffer.
* If buffers overlap, the output buffer must trail at least 8 bytes
* behind the input buffer.
*
* \param ctx GCM context
* \param length length of the input data
* \param iv initialization vector