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aead/chacha20-poly1305: use chacha20_x_final instead of reaching into chacha20_ctx guts

This commit is contained in:
Lucas Gabriel Vuotto 2024-06-07 00:29:17 +00:00
parent 11b86db9db
commit 5bd46fffa6
1 changed files with 4 additions and 4 deletions
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8
aead_chacha20_poly1305.c
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@ -64,8 +64,8 @@ chacha20_poly1305_seal(const uint8_t *key, size_t keylen, const uint8_t *iv,
!chacha20_x_update(&cctx, poly1305_key, &olen, poly1305_key,
LC_POLY1305_KEYLEN))
return 0;
for (i = 0; i < LC_POLY1305_KEYLEN / sizeof(uint32_t); i++)
store32le(&poly1305_key[i * 4], cctx.s[i]);
if (!chacha20_x_final(&cctx, poly1305_key + olen, &olen))
return 0;
if (!poly1305_init(&pctx, poly1305_key, LC_POLY1305_KEYLEN) ||
!poly1305_update(&pctx, aad, aadlen))
@ -140,8 +140,8 @@ chacha20_poly1305_open(const uint8_t *key, size_t keylen, const uint8_t *iv,
!chacha20_x_update(&cctx, poly1305_key, &olen, poly1305_key,
LC_POLY1305_KEYLEN))
return 0;
for (i = 0; i < LC_POLY1305_KEYLEN / sizeof(uint32_t); i++)
store32le(&poly1305_key[i * 4], cctx.s[i]);
if (!chacha20_x_final(&cctx, poly1305_key + olen, &olen))
return 0;
if (!poly1305_init(&pctx, poly1305_key, LC_POLY1305_KEYLEN) ||
!poly1305_update(&pctx, aad, aadlen))