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Merge pull request #1387 from Indawn/sm4_rng_edit

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SM4_RNG_Update增加异或
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Zhi Guan
2022-12-30 14:38:17 +08:00
committed by GitHub
parent f89bb40822 697249efe2
commit a7251b7e06
1 changed files with 6 additions and 1 deletions
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src/sm4_rng.c
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@@ -121,6 +121,9 @@ int sm4_rng_update(SM4_RNG *rng, const uint8_t seed[32])
sm4_encrypt(&sm4_key, rng->V, rng->K);
be_incr(rng->V);
sm4_encrypt(&sm4_key, rng->V, rng->V);
memxor(rng->K, seed, 16);
memxor(rng->V, seed + 16, 16);
return 1;
}
@@ -182,7 +185,9 @@ int sm4_rng_reseed(SM4_RNG *rng, const uint8_t *addin, size_t addin_len)
sm4_df_finish(&df_ctx, seed);
sm4_rng_update(rng, seed);
rng->reseed_counter = 1;
rng->last_reseed_time = time(NULL);
gmssl_secure_clear(&df_ctx, sizeof(df_ctx));
gmssl_secure_clear(entropy, sizeof(entropy));