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add and use constant time 32 byte equality function

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moneromooo-monero 2018-06-13 18:23:06 +01:00
parent 510dbf3329
commit d2e26c23f3
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9 changed files with 130 additions and 14 deletions
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15
src/ringct/rctTypes.h
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@ -36,6 +36,7 @@
#include <vector>
#include <iostream>
#include <cinttypes>
#include <sodium/crypto_verify_32.h>
extern "C" {
#include "crypto/crypto-ops.h"
@ -81,7 +82,7 @@ namespace rct {
unsigned char operator[](int i) const {
return bytes[i];
}
bool operator==(const key &k) const { return !memcmp(bytes, k.bytes, sizeof(bytes)); }
bool operator==(const key &k) const { return !crypto_verify_32(bytes, k.bytes); }
unsigned char bytes[32];
};
typedef std::vector<key> keyV; //vector of keys
@ -524,16 +525,16 @@ namespace rct {
static inline const crypto::secret_key rct2sk(const rct::key &k) { return (const crypto::secret_key&)k; }
static inline const crypto::key_image rct2ki(const rct::key &k) { return (const crypto::key_image&)k; }
static inline const crypto::hash rct2hash(const rct::key &k) { return (const crypto::hash&)k; }
static inline bool operator==(const rct::key &k0, const crypto::public_key &k1) { return !memcmp(&k0, &k1, 32); }
static inline bool operator!=(const rct::key &k0, const crypto::public_key &k1) { return memcmp(&k0, &k1, 32); }
static inline bool operator==(const rct::key &k0, const crypto::public_key &k1) { return !crypto_verify_32(k0.bytes, (const unsigned char*)&k1); }
static inline bool operator!=(const rct::key &k0, const crypto::public_key &k1) { return crypto_verify_32(k0.bytes, (const unsigned char*)&k1); }
}
namespace cryptonote {
static inline bool operator==(const crypto::public_key &k0, const rct::key &k1) { return !memcmp(&k0, &k1, 32); }
static inline bool operator!=(const crypto::public_key &k0, const rct::key &k1) { return memcmp(&k0, &k1, 32); }
static inline bool operator==(const crypto::secret_key &k0, const rct::key &k1) { return !memcmp(&k0, &k1, 32); }
static inline bool operator!=(const crypto::secret_key &k0, const rct::key &k1) { return memcmp(&k0, &k1, 32); }
static inline bool operator==(const crypto::public_key &k0, const rct::key &k1) { return !crypto_verify_32((const unsigned char*)&k0, k1.bytes); }
static inline bool operator!=(const crypto::public_key &k0, const rct::key &k1) { return crypto_verify_32((const unsigned char*)&k0, k1.bytes); }
static inline bool operator==(const crypto::secret_key &k0, const rct::key &k1) { return !crypto_verify_32((const unsigned char*)&k0, k1.bytes); }
static inline bool operator!=(const crypto::secret_key &k0, const rct::key &k1) { return crypto_verify_32((const unsigned char*)&k0, k1.bytes); }
}
namespace rct {