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Check sm4-gcm max plaintext size

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Zhi Guan
2024-06-11 23:22:39 +08:00
parent b1f25ab306
commit 6248cc171c
2 changed files with 50 additions and 3 deletions
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4
include/gmssl/sm4.h
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@@ -94,7 +94,8 @@ int sm4_ctr32_encrypt_finish(SM4_CTR_CTX *ctx, uint8_t *out, size_t *outlen);
#define SM4_GCM_MAX_AAD_SIZE (1<<24) // 16MiB
#define SM4_GCM_MIN_PLAINTEXT_SIZE 0
#define SM4_GCM_MAX_PLAINTEXT_SIZE ((((uint64_t)1 << 39) - 256) >> 3) // 68719476704
#define SM4_GCM_MAX_PLAINTEXT_NBLOCKS (((uint64_t)1 << 32) - 2)
#define SM4_GCM_MAX_PLAINTEXT_SIZE (SM4_GCM_MAX_PLAINTEXT_NBLOCKS * 16) // 68719476704
#define SM4_GCM_MAX_TAG_SIZE 16
#define SM4_GCM_MIN_TAG_SIZE 12
@@ -117,6 +118,7 @@ typedef struct {
size_t taglen;
uint8_t mac[16];
size_t maclen;
uint64_t encedlen;
} SM4_GCM_CTX;
int sm4_gcm_encrypt_init(SM4_GCM_CTX *ctx,