From: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> OpenSSL >= 1.1.0 supports ChaCha20-Poly1305 AEAD cipher, so let's support it in linux-generic.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> --- /** Email created from pull request 434 (lumag:crypto-upd) ** https://github.com/Linaro/odp/pull/434 ** Patch: https://github.com/Linaro/odp/pull/434.patch ** Base sha: abc7b3bb0babe8efa0fde52752bcd514f2f0d422 ** Merge commit sha: 15e0c830b5937ae889b7bcf6822797dbe0ecb799 **/ platform/linux-generic/odp_crypto.c | 58 +++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/platform/linux-generic/odp_crypto.c b/platform/linux-generic/odp_crypto.c index 00db3f9f2..66dc8f236 100644 --- a/platform/linux-generic/odp_crypto.c +++ b/platform/linux-generic/odp_crypto.c @@ -27,6 +27,12 @@ #include <openssl/hmac.h> #include <openssl/evp.h> +#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(OPENSSL_NO_POLY1305) +#define _ODP_HAVE_CHACHA20_POLY1305 1 +#else +#define _ODP_HAVE_CHACHA20_POLY1305 0 +#endif + #define MAX_SESSIONS 32 /* @@ -55,6 +61,11 @@ static const odp_crypto_cipher_capability_t cipher_capa_aes_gcm[] = { {.key_len = 24, .iv_len = 12}, {.key_len = 32, .iv_len = 12} }; +#if _ODP_HAVE_CHACHA20_POLY1305 +static const odp_crypto_cipher_capability_t cipher_capa_chacha20_poly1305[] = { +{.key_len = 32, .iv_len = 12} }; +#endif + /* * Authentication algorithm capabilities * @@ -86,6 +97,11 @@ static const odp_crypto_auth_capability_t auth_capa_aes_gmac[] = { {.digest_len = 16, .key_len = 16, .aad_len = {.min = 0, .max = 0, .inc = 0}, .iv_len = 12 } }; +#if _ODP_HAVE_CHACHA20_POLY1305 +static const odp_crypto_auth_capability_t auth_capa_chacha20_poly1305[] = { +{.digest_len = 16, .key_len = 0, .aad_len = {.min = 8, .max = 12, .inc = 4} } }; +#endif + /** Forward declaration of session structure */ typedef struct odp_crypto_generic_session_t odp_crypto_generic_session_t; @@ -838,6 +854,9 @@ int odp_crypto_capability(odp_crypto_capability_t *capa) capa->ciphers.bit.aes_cbc = 1; capa->ciphers.bit.aes_ctr = 1; capa->ciphers.bit.aes_gcm = 1; +#if _ODP_HAVE_CHACHA20_POLY1305 + capa->ciphers.bit.chacha20_poly1305 = 1; +#endif capa->auths.bit.null = 1; capa->auths.bit.md5_hmac = 1; @@ -846,6 +865,9 @@ int odp_crypto_capability(odp_crypto_capability_t *capa) capa->auths.bit.sha512_hmac = 1; capa->auths.bit.aes_gcm = 1; capa->auths.bit.aes_gmac = 1; +#if _ODP_HAVE_CHACHA20_POLY1305 + capa->auths.bit.chacha20_poly1305 = 1; +#endif #if ODP_DEPRECATED_API capa->ciphers.bit.aes128_cbc = 1; @@ -889,6 +911,12 @@ int odp_crypto_cipher_capability(odp_cipher_alg_t cipher, src = cipher_capa_aes_gcm; num = sizeof(cipher_capa_aes_gcm) / size; break; +#if _ODP_HAVE_CHACHA20_POLY1305 + case ODP_CIPHER_ALG_CHACHA20_POLY1305: + src = cipher_capa_chacha20_poly1305; + num = sizeof(cipher_capa_chacha20_poly1305) / size; + break; +#endif default: return -1; } @@ -937,6 +965,12 @@ int odp_crypto_auth_capability(odp_auth_alg_t auth, src = auth_capa_aes_gmac; num = sizeof(auth_capa_aes_gmac) / size; break; +#if _ODP_HAVE_CHACHA20_POLY1305 + case ODP_AUTH_ALG_CHACHA20_POLY1305: + src = auth_capa_chacha20_poly1305; + num = sizeof(auth_capa_chacha20_poly1305) / size; + break; +#endif default: return -1; } @@ -1059,6 +1093,17 @@ odp_crypto_session_create(odp_crypto_session_param_t *param, else rc = -1; break; +#if _ODP_HAVE_CHACHA20_POLY1305 + case ODP_CIPHER_ALG_CHACHA20_POLY1305: + /* ChaCha20_Poly1305 requires to do both auth and + * cipher at the same time */ + if (param->auth_alg != ODP_AUTH_ALG_CHACHA20_POLY1305) + rc = -1; + else + rc = process_aes_gcm_param(session, + EVP_chacha20_poly1305()); + break; +#endif default: rc = -1; } @@ -1131,6 +1176,19 @@ odp_crypto_session_create(odp_crypto_session_param_t *param, else rc = -1; break; +#if _ODP_HAVE_CHACHA20_POLY1305 + case ODP_AUTH_ALG_CHACHA20_POLY1305: + /* ChaCha20_Poly1305 requires to do both auth and + * cipher at the same time */ + if (param->cipher_alg == ODP_CIPHER_ALG_CHACHA20_POLY1305) { + session->auth.func = null_crypto_routine; + session->auth.init = null_crypto_init_routine; + rc = 0; + } else { + rc = -1; + } + break; +#endif default: rc = -1; }
