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This commit is contained in:
Gorachya
2022-05-17 17:55:29 +08:00
committed by GitHub
parent b6685304aa
commit 502bfd11c2
2 changed files with 29 additions and 17 deletions
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8
src/sm9_lib.c
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@@ -139,8 +139,6 @@ int sm9_sign_finish(SM9_SIGN_CTX *ctx, const SM9_SIGN_KEY *key, uint8_t *sig, si
return 1;
}
#define hex_r "00033C8616B06704813203DFD00965022ED15975C662337AED648835DC4B1CBE"
int sm9_do_sign(const SM9_SIGN_KEY *key, const SM3_CTX *sm3_ctx, SM9_SIGNATURE *sig)
{
sm9_fn_t r;
@@ -158,7 +156,6 @@ int sm9_do_sign(const SM9_SIGN_KEY *key, const SM3_CTX *sm3_ctx, SM9_SIGNATURE *
do {
// A2: rand r in [1, N-1]
sm9_fn_rand(r);
//sm9_bn_from_hex(r, hex_r);
// A3: w = g^r
sm9_fp12_pow(g, g, r);
@@ -289,7 +286,7 @@ int sm9_kem_encrypt(const SM9_ENC_MASTER_KEY *mpk, const char *id, size_t idlen,
SM3_KDF_CTX kdf_ctx;
// A1: Q = H1(ID||hid,N) * P1 + Ppube
sm9_hash1(r, id, idlen, SM9_HID_EXCH);
sm9_hash1(r, id, idlen, SM9_HID_ENC);
sm9_point_mul(C, r, SM9_P1);
sm9_point_add(C, C, &mpk->Ppube);
@@ -335,10 +332,11 @@ int sm9_kem_decrypt(const SM9_ENC_KEY *key, const char *id, size_t idlen, const
SM3_KDF_CTX kdf_ctx;
// B1: check C in G1
sm9_point_to_uncompressed_octets(C, cbuf + 1);
sm9_point_to_uncompressed_octets(C, cbuf);
// B2: w = e(C, de);
sm9_pairing(w, &key->de, C);
sm9_fp12_to_bytes(w, wbuf);
// B3: K = KDF(C || w || ID, klen)
sm3_kdf_init(&kdf_ctx, klen);