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added ft decryption routine

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mr-alice 2016-10-19 22:49:51 +02:00
parent 3ad0a81d8f
commit 9d32406669
4 changed files with 90 additions and 28 deletions
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14
libretroshare/src/crypto/chacha20.h
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@ -37,7 +37,7 @@ namespace librs
* \param data data that gets encrypted/decrypted in place
* \param size size of the data.
*/
static void chacha20_encrypt(uint8_t key[32], uint32_t block_counter, uint8_t nonce[12], uint8_t *data, uint32_t size) ;
void chacha20_encrypt(uint8_t key[32], uint32_t block_counter, uint8_t nonce[12], uint8_t *data, uint32_t size) ;
/*!
* \brief poly1305_tag
@ -48,7 +48,7 @@ namespace librs
* \param tag place where the tag is stored.
*/
static void poly1305_tag(uint8_t key[32],uint8_t *message,uint32_t size,uint8_t tag[16]);
void poly1305_tag(uint8_t key[32],uint8_t *message,uint32_t size,uint8_t tag[16]);
/*!
* \brief AEAD_chacha20_poly1305
@ -62,24 +62,26 @@ namespace librs
* \param size size of the data
* \param tag generated poly1305 tag.
*/
static void AEAD_chacha20_poly1305(uint8_t key[32], uint8_t nonce[12],uint8_t *data,uint32_t data_size,uint8_t *aad,uint32_t aad_size,uint8_t tag[16]) ;
bool AEAD_chacha20_poly1305(uint8_t key[32], uint8_t nonce[12],uint8_t *data,uint32_t data_size,uint8_t *aad,uint32_t aad_size,uint8_t tag[16]) ;
/*!
* \brief constant_time_memcmp
* Provides a constant time comparison of two memory chunks. The implementation comes from the FreeBSD implementation.
* Provides a constant time comparison of two memory chunks. Calls CRYPTO_memcmp.
*
* \param m1 memory block 1
* \param m2 memory block 2
* \param size common size of m1 and m2
* \return
* false if the two chunks are different
* true if the two chunks are different
*/
static bool constant_time_memcmp(const uint8_t *m1,const uint8_t *m2,uint32_t size) ;
bool constant_time_memory_compare(const uint8_t *m1,const uint8_t *m2,uint32_t size) ;
/*!
* \brief perform_tests
* Tests all methods in this class, using the tests supplied in RFC7539
*/
static void perform_tests() ;
void perform_tests() ;
}
}