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Add support for Chacha20-Poly1305 to kernel TLS on FreeBSD.

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FreeBSD's kernel TLS supports Chacha20 for both TLS 1.2 and TLS 1.3.

Obtained from:	OpenSSL commit 77f3936928068bee9d7e0c6939709ac179cb1059
This commit is contained in:
John Baldwin 2020-12-23 14:09:51 -08:00
parent f3ff0918ff
commit 3de4f78d46
2 changed files with 15 additions and 0 deletions
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5
crypto/openssl/include/internal/ktls.h
View file

@ -40,6 +40,11 @@
# define OPENSSL_KTLS_AES_GCM_128
# define OPENSSL_KTLS_AES_GCM_256
# define OPENSSL_KTLS_TLS13
# ifdef TLS_CHACHA20_IV_LEN
# ifndef OPENSSL_NO_CHACHA
# define OPENSSL_KTLS_CHACHA20_POLY1305
# endif
# endif
typedef struct tls_enable ktls_crypto_info_t;

10
crypto/openssl/ssl/ktls.c
View file

@ -37,6 +37,10 @@ int ktls_check_supported_cipher(const SSL *s, const EVP_CIPHER *c,
case SSL_AES128GCM:
case SSL_AES256GCM:
return 1;
# ifdef OPENSSL_KTLS_CHACHA20_POLY1305
case SSL_CHACHA20POLY1305:
return 1;
# endif
case SSL_AES128:
case SSL_AES256:
if (s->ext.use_etm)
@ -74,6 +78,12 @@ int ktls_configure_crypto(const SSL *s, const EVP_CIPHER *c, EVP_CIPHER_CTX *dd,
else
crypto_info->iv_len = EVP_GCM_TLS_FIXED_IV_LEN;
break;
# ifdef OPENSSL_KTLS_CHACHA20_POLY1305
case SSL_CHACHA20POLY1305:
crypto_info->cipher_algorithm = CRYPTO_CHACHA20_POLY1305;
crypto_info->iv_len = EVP_CIPHER_CTX_get_iv_length(dd);
break;
# endif
case SSL_AES128:
case SSL_AES256:
switch (s->s3.tmp.new_cipher->algorithm_mac) {