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Update SM4 GCM IV sizes

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This commit is contained in:
Zhi Guan
2023-10-13 22:08:17 +08:00
parent 06017d23f5
commit 71fb469801
2 changed files with 14 additions and 6 deletions
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3
include/gmssl/aead.h
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@@ -84,9 +84,6 @@ typedef struct {
} SM4_GCM_CTX;
#define SM4_GCM_KEY_SIZE 16
#define SM4_GCM_MIN_IV_SIZE 1
#define SM4_GCM_DEFAULT_IV_SIZE 12
#define SM4_GCM_MAX_IV_SIZE 64
#define SM4_GCM_DEFAULT_TAG_SIZE 16
_gmssl_export int sm4_gcm_encrypt_init(SM4_GCM_CTX *ctx,

17
include/gmssl/sm4.h
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@@ -73,17 +73,28 @@ void sm4_ctr_encrypt(const SM4_KEY *key, uint8_t ctr[SM4_BLOCK_SIZE],
#define SM4_GCM_IV_MIN_SIZE 1
#define SM4_GCM_IV_MAX_SIZE ((uint64_t)(1 << (64-3)))
#define SM4_GCM_IV_MAX_SIZE (((uint64_t)1 << (64-3)) - 1) // 2305843009213693951
#define SM4_GCM_IV_DEFAULT_BITS 96
#define SM4_GCM_IV_DEFAULT_SIZE 12
//#define NIST_SP800_GCM_MAX_IV_SIZE (((uint64_t)1 << (64-3)) - 1) // 2305843009213693951
#define SM4_GCM_MAX_IV_SIZE 64
#define SM4_GCM_MIN_IV_SIZE 1
#define SM4_GCM_DEFAULT_IV_SIZE 12
#define SM4_GCM_MIN_AAD_SIZE 0
#define SM4_GCM_MAX_AAD_SIZE ((uint64_t)(1 << (64-3)))
#define SM4_GCM_MAX_AAD_SIZE (((uint64_t)1 << (64-3)) - 1) // 2305843009213693951
#define SM4_GCM_MIN_PLAINTEXT_SIZE 0
#define SM4_GCM_MAX_PLAINTEXT_SIZE ((((uint64_t)1 << 39) - 256) >> 3)
#define SM4_GCM_MAX_PLAINTEXT_SIZE ((((uint64_t)1 << 39) - 256) >> 3) // 68719476704
#define SM4_GCM_MAX_TAG_SIZE 16
#define SM4_GCM_MIN_TAG_SIZE 12
// For certain applications (voice or video), tag may be 64 or 32 bits
// see NIST Special Publication 800-38D, Appendix C for more details
int sm4_gcm_encrypt(const SM4_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,