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Simplify CTR code

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Andrew Ayer
2014-07-07 22:52:12 -07:00
parent 8de40f40b3
commit 23ff272f7d
2 changed files with 18 additions and 16 deletions
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7
crypto.hpp
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@@ -76,12 +76,13 @@ public:
private:
Aes_ecb_encryptor ecb;
char nonce[NONCE_LEN];// First 96 bits of counter
uint32_t byte_counter; // How many bytes processed so far?
unsigned char otp[BLOCK_LEN]; // The current OTP that's in use
unsigned char ctr_value[BLOCK_LEN]; // Current CTR value (used as input to AES to derive pad)
unsigned char pad[BLOCK_LEN]; // Current encryption pad (output of AES)
uint32_t byte_counter; // How many bytes processed so far?
public:
Aes_ctr_encryptor (const unsigned char* key, const unsigned char* nonce);
~Aes_ctr_encryptor ();
void process (const unsigned char* in, unsigned char* out, size_t len);