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Fix quic header protect cipher return

pull/7477/head
Juliusz Sosinowicz 2024-04-26 14:18:40 +02:00
parent e1bd4dd1ec
commit 49952a97d7
1 changed files with 10 additions and 3 deletions
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13
src/quic.c
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@ -1038,11 +1038,17 @@ const WOLFSSL_EVP_CIPHER* wolfSSL_quic_get_hp(WOLFSSL* ssl)
switch (cipher->cipherSuite) { switch (cipher->cipherSuite) {
#if !defined(NO_AES) && defined(HAVE_AESGCM) #if !defined(NO_AES) && defined(HAVE_AESGCM)
/* This has to be CTR even though the spec says that ECB is used for
* mask generation. ngtcp2_crypto_hp_mask uses a hack where they pass
* in the "ECB" input as the IV for the CTR cipher and then the input
* is just a cleared buffer. They do this so that the EVP
* init-update-final cycle can be used without the padding that is added
* for EVP_aes_(128|256)_ecb. */
case TLS_AES_128_GCM_SHA256: case TLS_AES_128_GCM_SHA256:
evp_cipher = wolfSSL_EVP_aes_128_gcm(); evp_cipher = wolfSSL_EVP_aes_128_ctr();
break; break;
case TLS_AES_256_GCM_SHA384: case TLS_AES_256_GCM_SHA384:
evp_cipher = wolfSSL_EVP_aes_256_gcm(); evp_cipher = wolfSSL_EVP_aes_256_ctr();
break; break;
#endif #endif
#if defined(HAVE_CHACHA) && defined(HAVE_POLY1305) #if defined(HAVE_CHACHA) && defined(HAVE_POLY1305)
@ -1051,8 +1057,9 @@ const WOLFSSL_EVP_CIPHER* wolfSSL_quic_get_hp(WOLFSSL* ssl)
break; break;
#endif #endif
#if !defined(NO_AES) && defined(HAVE_AESCCM) && defined(WOLFSSL_AES_128) #if !defined(NO_AES) && defined(HAVE_AESCCM) && defined(WOLFSSL_AES_128)
/* This has to be CTR. See comment above. */
case TLS_AES_128_CCM_SHA256: case TLS_AES_128_CCM_SHA256:
evp_cipher = wolfSSL_EVP_aes_128_ccm(); evp_cipher = wolfSSL_EVP_aes_128_ctr();
break; break;
case TLS_AES_128_CCM_8_SHA256: case TLS_AES_128_CCM_8_SHA256:
WOLFSSL_MSG("wolfSSL_quic_get_hp: no CCM-8 support in EVP layer"); WOLFSSL_MSG("wolfSSL_quic_get_hp: no CCM-8 support in EVP layer");