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openssl: Add support for ChaCha20-Poly1305

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It's available since OpenSSL 1.1.0.
This commit is contained in:
Tobias Brunner
2019-03-08 15:55:52 +01:00
parent 8fc6b2d0e0
commit a21710d380
2 changed files with 26 additions and 3 deletions
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src/libstrongswan/plugins/openssl/openssl_aead.c
+19
View File
@@ -239,6 +239,9 @@ aead_t *openssl_aead_create(encryption_algorithm_t algo,
case ENCR_AES_GCM_ICV16:
this->icv_size = 16;
break;
case ENCR_CHACHA20_POLY1305:
this->icv_size = 16;
break;
default:
free(this);
return NULL;
@@ -275,6 +278,22 @@ aead_t *openssl_aead_create(encryption_algorithm_t algo,
return NULL;
}
break;
#if OPENSSL_VERSION_NUMBER >= 0x1010000fL && !defined(OPENSSL_NO_CHACHA)
case ENCR_CHACHA20_POLY1305:
switch (key_size)
{
case 0:
key_size = 32;
/* FALL */
case 32:
this->cipher = EVP_chacha20_poly1305();
break;
default:
free(this);
return NULL;
}
break;
#endif /* OPENSSL_NO_CHACHA */
default:
free(this);
return NULL;
src/libstrongswan/plugins/openssl/openssl_plugin.c
+7 -3
View File
@@ -580,10 +580,11 @@ METHOD(plugin_t, get_features, int,
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_512_512),
#endif
#endif /* OPENSSL_NO_HMAC */
#if OPENSSL_VERSION_NUMBER >= 0x1000100fL
#ifndef OPENSSL_NO_AES
/* AES GCM */
#if (OPENSSL_VERSION_NUMBER >= 0x1000100fL && !defined(OPENSSL_NO_AES)) || \
(OPENSSL_VERSION_NUMBER >= 0x1010000fL && !defined(OPENSSL_NO_CHACHA))
/* AEAD (AES GCM since 1.0.1, ChaCha20-Poly1305 since 1.1.0) */
PLUGIN_REGISTER(AEAD, openssl_aead_create),
#ifndef OPENSSL_NO_AES
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 16),
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 24),
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 32),
@@ -594,6 +595,9 @@ METHOD(plugin_t, get_features, int,
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV8, 24),
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV8, 32),
#endif /* OPENSSL_NO_AES */
#if OPENSSL_VERSION_NUMBER >= 0x1010000fL && !defined(OPENSSL_NO_CHACHA)
PLUGIN_PROVIDE(AEAD, ENCR_CHACHA20_POLY1305, 32),
#endif /* OPENSSL_NO_CHACHA */
#endif /* OPENSSL_VERSION_NUMBER */
#ifndef OPENSSL_NO_ECDH
/* EC DH groups */