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spl: refactor into sts namespace

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This commit is contained in:
Michael Scire
2019-06-21 01:36:00 -07:00
parent 1671c04e24
commit f9b48f06a3
30 changed files with 2230 additions and 2152 deletions
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70
stratosphere/spl/source/spl_ctr_drbg.hpp
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@@ -20,41 +20,45 @@
#include "spl_types.hpp"
/* Nintendo implements CTR_DRBG for their csrng. We will do the same. */
class CtrDrbg {
public:
static constexpr size_t MaxRequestSize = 0x10000;
static constexpr size_t ReseedInterval = 0x7FFFFFF0;
static constexpr size_t BlockSize = AES_BLOCK_SIZE;
static constexpr size_t SeedSize = 2 * AES_BLOCK_SIZE;
private:
Aes128Context aes_ctx;
u8 counter[BlockSize];
u8 key[BlockSize];
u8 work[2][SeedSize];
u32 reseed_counter;
private:
static void Xor(void *dst, const void *src, size_t size) {
const u8 *src_u8 = reinterpret_cast<const u8 *>(src);
u8 *dst_u8 = reinterpret_cast<u8 *>(dst);
namespace sts::spl {
for (size_t i = 0; i < size; i++) {
dst_u8[i] ^= src_u8[i];
/* Nintendo implements CTR_DRBG for their csrng. We will do the same. */
class CtrDrbg {
public:
static constexpr size_t MaxRequestSize = 0x10000;
static constexpr size_t ReseedInterval = 0x7FFFFFF0;
static constexpr size_t BlockSize = AES_BLOCK_SIZE;
static constexpr size_t SeedSize = 2 * AES_BLOCK_SIZE;
private:
Aes128Context aes_ctx;
u8 counter[BlockSize];
u8 key[BlockSize];
u8 work[2][SeedSize];
u32 reseed_counter;
private:
static void Xor(void *dst, const void *src, size_t size) {
const u8 *src_u8 = reinterpret_cast<const u8 *>(src);
u8 *dst_u8 = reinterpret_cast<u8 *>(dst);
for (size_t i = 0; i < size; i++) {
dst_u8[i] ^= src_u8[i];
}
}
}
static void IncrementCounter(void *ctr) {
u64 *ctr_64 = reinterpret_cast<u64 *>(ctr);
static void IncrementCounter(void *ctr) {
u64 *ctr_64 = reinterpret_cast<u64 *>(ctr);
ctr_64[1] = __builtin_bswap64(__builtin_bswap64(ctr_64[1]) + 1);
if (!ctr_64[1]) {
ctr_64[0] = __builtin_bswap64(__builtin_bswap64(ctr_64[0]) + 1);
ctr_64[1] = __builtin_bswap64(__builtin_bswap64(ctr_64[1]) + 1);
if (!ctr_64[1]) {
ctr_64[0] = __builtin_bswap64(__builtin_bswap64(ctr_64[0]) + 1);
}
}
}
private:
void Update(const void *data);
public:
void Initialize(const void *seed);
void Reseed(const void *seed);
bool GenerateRandomBytes(void *out, size_t size);
};
private:
void Update(const void *data);
public:
void Initialize(const void *seed);
void Reseed(const void *seed);
bool GenerateRandomBytes(void *out, size_t size);
};
}