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[54.197.127.237]) by mx.google.com with ESMTP id u63si2016437qkc.314.2018.01.30.07.17.59; Tue, 30 Jan 2018 07:17:59 -0800 (PST) Received-SPF: pass (google.com: domain of lng-odp-bounces@lists.linaro.org designates 54.197.127.237 as permitted sender) client-ip=54.197.127.237; Authentication-Results: mx.google.com; spf=pass (google.com: domain of lng-odp-bounces@lists.linaro.org designates 54.197.127.237 as permitted sender) smtp.mailfrom=lng-odp-bounces@lists.linaro.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=yandex.ru Received: by lists.linaro.org (Postfix, from userid 109) id 857AB616E3; Tue, 30 Jan 2018 15:17:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on ip-10-142-244-252 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,FREEMAIL_FROM, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2 autolearn=disabled version=3.4.0 Received: from [127.0.0.1] (localhost [127.0.0.1]) by lists.linaro.org (Postfix) with ESMTP id 9549B6178E; Tue, 30 Jan 2018 15:02:18 +0000 (UTC) X-Original-To: lng-odp@lists.linaro.org Delivered-To: lng-odp@lists.linaro.org Received: by lists.linaro.org (Postfix, from userid 109) id 88BA4614E1; Tue, 30 Jan 2018 15:00:46 +0000 (UTC) Received: from forward102p.mail.yandex.net (forward102p.mail.yandex.net [77.88.28.102]) by lists.linaro.org (Postfix) with ESMTPS id D485E61508 for ; Tue, 30 Jan 2018 15:00:24 +0000 (UTC) Received: from mxback7j.mail.yandex.net (mxback7j.mail.yandex.net [IPv6:2a02:6b8:0:1619::110]) by forward102p.mail.yandex.net (Yandex) with ESMTP id 68E38430233D for ; Tue, 30 Jan 2018 18:00:23 +0300 (MSK) Received: from smtp1p.mail.yandex.net (smtp1p.mail.yandex.net [2a02:6b8:0:1472:2741:0:8b6:6]) by mxback7j.mail.yandex.net (nwsmtp/Yandex) with ESMTP id rMw1vBdh07-0NBW0QEO; Tue, 30 Jan 2018 18:00:23 +0300 Received: by smtp1p.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id sxKD104gxy-0Mri8mNS; Tue, 30 Jan 2018 18:00:22 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Github ODP bot To: lng-odp@lists.linaro.org Date: Tue, 30 Jan 2018 18:00:08 +0300 Message-Id: <1517324412-24567-14-git-send-email-odpbot@yandex.ru> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1517324412-24567-1-git-send-email-odpbot@yandex.ru> References: <1517324412-24567-1-git-send-email-odpbot@yandex.ru> Github-pr-num: 434 Subject: [lng-odp] [PATCH API-NEXT v3 13/17] linux-gen: crypto: provide AES-CCM implementation X-BeenThere: lng-odp@lists.linaro.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: "The OpenDataPlane \(ODP\) List" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lng-odp-bounces@lists.linaro.org Sender: "lng-odp" From: Dmitry Eremin-Solenikov AES-CCM support in OpenSSL is quite unique: it requires whole data to be passed in single EVP_EncryptUpdate/EVP_DecryptUpdate call. Supporting this requires copying data back-and-forth between packet and temporary buffer. Signed-off-by: Dmitry Eremin-Solenikov --- /** 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 | 192 ++++++++++++++++++++++++++++++++++++ 1 file changed, 192 insertions(+) diff --git a/platform/linux-generic/odp_crypto.c b/platform/linux-generic/odp_crypto.c index 66dc8f236..e9d436198 100644 --- a/platform/linux-generic/odp_crypto.c +++ b/platform/linux-generic/odp_crypto.c @@ -61,6 +61,14 @@ static const odp_crypto_cipher_capability_t cipher_capa_aes_gcm[] = { {.key_len = 24, .iv_len = 12}, {.key_len = 32, .iv_len = 12} }; +static const odp_crypto_cipher_capability_t cipher_capa_aes_ccm[] = { +{.key_len = 16, .iv_len = 11}, +{.key_len = 16, .iv_len = 13}, +{.key_len = 24, .iv_len = 11}, +{.key_len = 24, .iv_len = 13}, +{.key_len = 32, .iv_len = 11}, +{.key_len = 32, .iv_len = 13} }; + #if _ODP_HAVE_CHACHA20_POLY1305 static const odp_crypto_cipher_capability_t cipher_capa_chacha20_poly1305[] = { {.key_len = 32, .iv_len = 12} }; @@ -93,6 +101,9 @@ static const odp_crypto_auth_capability_t auth_capa_sha512_hmac[] = { static const odp_crypto_auth_capability_t auth_capa_aes_gcm[] = { {.digest_len = 16, .key_len = 0, .aad_len = {.min = 8, .max = 12, .inc = 4} } }; +static const odp_crypto_auth_capability_t auth_capa_aes_ccm[] = { +{.digest_len = 8, .key_len = 0, .aad_len = {.min = 8, .max = 12, .inc = 4} } }; + 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 } }; @@ -813,6 +824,153 @@ static int process_aes_gmac_param(odp_crypto_generic_session_t *session, return 0; } +static +odp_crypto_alg_err_t aes_ccm_encrypt(odp_packet_t pkt, + const odp_crypto_packet_op_param_t *param, + odp_crypto_generic_session_t *session) +{ + EVP_CIPHER_CTX *ctx; + const uint8_t *aad_head = param->aad_ptr; + uint32_t aad_len = session->p.auth_aad_len; + void *iv_ptr; + int dummy_len = 0; + int cipher_len; + uint32_t in_len = param->cipher_range.length; + uint8_t data[in_len]; + uint8_t block[EVP_MAX_MD_SIZE]; + int ret; + + if (param->cipher_iv_ptr) + iv_ptr = param->cipher_iv_ptr; + else if (session->p.cipher_iv.data) + iv_ptr = session->cipher.iv_data; + else + return ODP_CRYPTO_ALG_ERR_IV_INVALID; + + /* Encrypt it */ + ctx = EVP_CIPHER_CTX_new(); + EVP_EncryptInit_ex(ctx, session->cipher.evp_cipher, NULL, + NULL, NULL); + EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, + session->p.cipher_iv.length, NULL); + EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, + session->p.auth_digest_len, NULL); + EVP_EncryptInit_ex(ctx, NULL, NULL, session->cipher.key_data, iv_ptr); + EVP_CIPHER_CTX_set_padding(ctx, 0); + + /* Set len */ + EVP_EncryptUpdate(ctx, NULL, &dummy_len, NULL, in_len); + + /* Authenticate header data (if any) without encrypting them */ + if (aad_len > 0) + EVP_EncryptUpdate(ctx, NULL, &dummy_len, + aad_head, aad_len); + + odp_packet_copy_to_mem(pkt, param->cipher_range.offset, in_len, + data); + + EVP_EncryptUpdate(ctx, data, &cipher_len, data, in_len); + + ret = EVP_EncryptFinal_ex(ctx, data + cipher_len, &dummy_len); + cipher_len += dummy_len; + + odp_packet_copy_from_mem(pkt, param->cipher_range.offset, in_len, + data); + + EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_GET_TAG, + session->p.auth_digest_len, block); + odp_packet_copy_from_mem(pkt, param->hash_result_offset, + session->p.auth_digest_len, block); + + EVP_CIPHER_CTX_free(ctx); + + return ret <= 0 ? ODP_CRYPTO_ALG_ERR_DATA_SIZE : + ODP_CRYPTO_ALG_ERR_NONE; +} + +static +odp_crypto_alg_err_t aes_ccm_decrypt(odp_packet_t pkt, + const odp_crypto_packet_op_param_t *param, + odp_crypto_generic_session_t *session) +{ + EVP_CIPHER_CTX *ctx; + const uint8_t *aad_head = param->aad_ptr; + uint32_t aad_len = session->p.auth_aad_len; + void *iv_ptr; + int dummy_len = 0; + int cipher_len; + uint32_t in_len = param->cipher_range.length; + uint8_t data[in_len]; + uint8_t block[EVP_MAX_MD_SIZE]; + int ret; + + if (param->cipher_iv_ptr) + iv_ptr = param->cipher_iv_ptr; + else if (session->p.cipher_iv.data) + iv_ptr = session->cipher.iv_data; + else + return ODP_CRYPTO_ALG_ERR_IV_INVALID; + + /* Decrypt it */ + ctx = EVP_CIPHER_CTX_new(); + EVP_DecryptInit_ex(ctx, session->cipher.evp_cipher, NULL, + NULL, NULL); + EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, + session->p.cipher_iv.length, NULL); + odp_packet_copy_to_mem(pkt, param->hash_result_offset, + session->p.auth_digest_len, block); + EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, + session->p.auth_digest_len, block); + EVP_DecryptInit_ex(ctx, NULL, NULL, session->cipher.key_data, iv_ptr); + EVP_CIPHER_CTX_set_padding(ctx, 0); + + /* Set len */ + EVP_DecryptUpdate(ctx, NULL, &dummy_len, NULL, in_len); + + /* Authenticate header data (if any) without encrypting them */ + if (aad_len > 0) + EVP_DecryptUpdate(ctx, NULL, &dummy_len, + aad_head, aad_len); + + odp_packet_copy_to_mem(pkt, param->cipher_range.offset, in_len, + data); + + ret = EVP_DecryptUpdate(ctx, data, &cipher_len, data, in_len); + + EVP_DecryptFinal_ex(ctx, data + cipher_len, &dummy_len); + cipher_len += dummy_len; + + odp_packet_copy_from_mem(pkt, param->cipher_range.offset, in_len, + data); + + EVP_CIPHER_CTX_free(ctx); + + return ret <= 0 ? ODP_CRYPTO_ALG_ERR_ICV_CHECK : + ODP_CRYPTO_ALG_ERR_NONE; +} + +static int process_aes_ccm_param(odp_crypto_generic_session_t *session, + const EVP_CIPHER *cipher) +{ + /* Verify Key len is valid */ + if ((uint32_t)EVP_CIPHER_key_length(cipher) != + session->p.cipher_key.length) + return -1; + + memcpy(session->cipher.key_data, session->p.cipher_key.data, + session->p.cipher_key.length); + + session->cipher.evp_cipher = cipher; + + /* Set function */ + if (ODP_CRYPTO_OP_ENCODE == session->p.op) + session->cipher.func = aes_ccm_encrypt; + else + session->cipher.func = aes_ccm_decrypt; + + return 0; +} + static int process_auth_param(odp_crypto_generic_session_t *session, uint32_t key_length, const EVP_MD *evp_md) @@ -854,6 +1012,7 @@ 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; + capa->ciphers.bit.aes_ccm = 1; #if _ODP_HAVE_CHACHA20_POLY1305 capa->ciphers.bit.chacha20_poly1305 = 1; #endif @@ -864,6 +1023,7 @@ int odp_crypto_capability(odp_crypto_capability_t *capa) capa->auths.bit.sha256_hmac = 1; capa->auths.bit.sha512_hmac = 1; capa->auths.bit.aes_gcm = 1; + capa->auths.bit.aes_ccm = 1; capa->auths.bit.aes_gmac = 1; #if _ODP_HAVE_CHACHA20_POLY1305 capa->auths.bit.chacha20_poly1305 = 1; @@ -911,6 +1071,10 @@ int odp_crypto_cipher_capability(odp_cipher_alg_t cipher, src = cipher_capa_aes_gcm; num = sizeof(cipher_capa_aes_gcm) / size; break; + case ODP_CIPHER_ALG_AES_CCM: + src = cipher_capa_aes_ccm; + num = sizeof(cipher_capa_aes_ccm) / size; + break; #if _ODP_HAVE_CHACHA20_POLY1305 case ODP_CIPHER_ALG_CHACHA20_POLY1305: src = cipher_capa_chacha20_poly1305; @@ -965,6 +1129,10 @@ int odp_crypto_auth_capability(odp_auth_alg_t auth, src = auth_capa_aes_gmac; num = sizeof(auth_capa_aes_gmac) / size; break; + case ODP_AUTH_ALG_AES_CCM: + src = auth_capa_aes_ccm; + num = sizeof(auth_capa_aes_ccm) / size; + break; #if _ODP_HAVE_CHACHA20_POLY1305 case ODP_AUTH_ALG_CHACHA20_POLY1305: src = auth_capa_chacha20_poly1305; @@ -1093,6 +1261,20 @@ odp_crypto_session_create(odp_crypto_session_param_t *param, else rc = -1; break; + case ODP_CIPHER_ALG_AES_CCM: + /* AES-CCM requires to do both auth and + * cipher at the same time */ + if (param->auth_alg != ODP_AUTH_ALG_AES_CCM) + rc = -1; + else if (param->cipher_key.length == 16) + rc = process_aes_ccm_param(session, EVP_aes_128_ccm()); + else if (param->cipher_key.length == 24) + rc = process_aes_ccm_param(session, EVP_aes_192_ccm()); + else if (param->cipher_key.length == 32) + rc = process_aes_ccm_param(session, EVP_aes_256_ccm()); + else + rc = -1; + break; #if _ODP_HAVE_CHACHA20_POLY1305 case ODP_CIPHER_ALG_CHACHA20_POLY1305: /* ChaCha20_Poly1305 requires to do both auth and @@ -1176,6 +1358,16 @@ odp_crypto_session_create(odp_crypto_session_param_t *param, else rc = -1; break; + case ODP_AUTH_ALG_AES_CCM: + /* AES-CCM requires to do both auth and + * cipher at the same time */ + if (param->cipher_alg == ODP_CIPHER_ALG_AES_CCM) { + session->auth.func = null_crypto_routine; + rc = 0; + } else { + rc = -1; + } + break; #if _ODP_HAVE_CHACHA20_POLY1305 case ODP_AUTH_ALG_CHACHA20_POLY1305: /* ChaCha20_Poly1305 requires to do both auth and