From 1684c8f398922065a97e7da4dac4ac6a33cc5218 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Wed, 9 Apr 2014 16:03:55 +0200 Subject: Back to the standard "app" module. This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure I'll have to tweak the final apk name in build.gradle. --- app/openssl/crypto/ec/ec_pmeth.c | 340 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 340 insertions(+) create mode 100644 app/openssl/crypto/ec/ec_pmeth.c (limited to 'app/openssl/crypto/ec/ec_pmeth.c') diff --git a/app/openssl/crypto/ec/ec_pmeth.c b/app/openssl/crypto/ec/ec_pmeth.c new file mode 100644 index 00000000..f433076c --- /dev/null +++ b/app/openssl/crypto/ec/ec_pmeth.c @@ -0,0 +1,340 @@ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "cryptlib.h" +#include +#include +#include +#include +#include +#include "evp_locl.h" + +/* EC pkey context structure */ + +typedef struct + { + /* Key and paramgen group */ + EC_GROUP *gen_group; + /* message digest */ + const EVP_MD *md; + } EC_PKEY_CTX; + +static int pkey_ec_init(EVP_PKEY_CTX *ctx) + { + EC_PKEY_CTX *dctx; + dctx = OPENSSL_malloc(sizeof(EC_PKEY_CTX)); + if (!dctx) + return 0; + dctx->gen_group = NULL; + dctx->md = NULL; + + ctx->data = dctx; + + return 1; + } + +static int pkey_ec_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) + { + EC_PKEY_CTX *dctx, *sctx; + if (!pkey_ec_init(dst)) + return 0; + sctx = src->data; + dctx = dst->data; + if (sctx->gen_group) + { + dctx->gen_group = EC_GROUP_dup(sctx->gen_group); + if (!dctx->gen_group) + return 0; + } + dctx->md = sctx->md; + return 1; + } + +static void pkey_ec_cleanup(EVP_PKEY_CTX *ctx) + { + EC_PKEY_CTX *dctx = ctx->data; + if (dctx) + { + if (dctx->gen_group) + EC_GROUP_free(dctx->gen_group); + OPENSSL_free(dctx); + } + } + +static int pkey_ec_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, + const unsigned char *tbs, size_t tbslen) + { + int ret, type; + unsigned int sltmp; + EC_PKEY_CTX *dctx = ctx->data; + EC_KEY *ec = ctx->pkey->pkey.ec; + + if (!sig) + { + *siglen = ECDSA_size(ec); + return 1; + } + else if(*siglen < (size_t)ECDSA_size(ec)) + { + ECerr(EC_F_PKEY_EC_SIGN, EC_R_BUFFER_TOO_SMALL); + return 0; + } + + if (dctx->md) + type = EVP_MD_type(dctx->md); + else + type = NID_sha1; + + + ret = ECDSA_sign(type, tbs, tbslen, sig, &sltmp, ec); + + if (ret <= 0) + return ret; + *siglen = (size_t)sltmp; + return 1; + } + +static int pkey_ec_verify(EVP_PKEY_CTX *ctx, + const unsigned char *sig, size_t siglen, + const unsigned char *tbs, size_t tbslen) + { + int ret, type; + EC_PKEY_CTX *dctx = ctx->data; + EC_KEY *ec = ctx->pkey->pkey.ec; + + if (dctx->md) + type = EVP_MD_type(dctx->md); + else + type = NID_sha1; + + ret = ECDSA_verify(type, tbs, tbslen, sig, siglen, ec); + + return ret; + } + +static int pkey_ec_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen) + { + int ret; + size_t outlen; + const EC_POINT *pubkey = NULL; + if (!ctx->pkey || !ctx->peerkey) + { + ECerr(EC_F_PKEY_EC_DERIVE, EC_R_KEYS_NOT_SET); + return 0; + } + + if (!key) + { + const EC_GROUP *group; + group = EC_KEY_get0_group(ctx->pkey->pkey.ec); + *keylen = (EC_GROUP_get_degree(group) + 7)/8; + return 1; + } + + pubkey = EC_KEY_get0_public_key(ctx->peerkey->pkey.ec); + + /* NB: unlike PKS#3 DH, if *outlen is less than maximum size this is + * not an error, the result is truncated. + */ + + outlen = *keylen; + + ret = ECDH_compute_key(key, outlen, pubkey, ctx->pkey->pkey.ec, 0); + if (ret < 0) + return ret; + *keylen = ret; + return 1; + } + +static int pkey_ec_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) + { + EC_PKEY_CTX *dctx = ctx->data; + EC_GROUP *group; + switch (type) + { + case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID: + group = EC_GROUP_new_by_curve_name(p1); + if (group == NULL) + { + ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_CURVE); + return 0; + } + if (dctx->gen_group) + EC_GROUP_free(dctx->gen_group); + dctx->gen_group = group; + return 1; + + case EVP_PKEY_CTRL_MD: + if (EVP_MD_type((const EVP_MD *)p2) != NID_sha1 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha224 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha256 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha384 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha512) + { + ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_DIGEST_TYPE); + return 0; + } + dctx->md = p2; + return 1; + + case EVP_PKEY_CTRL_PEER_KEY: + /* Default behaviour is OK */ + case EVP_PKEY_CTRL_DIGESTINIT: + case EVP_PKEY_CTRL_PKCS7_SIGN: + case EVP_PKEY_CTRL_CMS_SIGN: + return 1; + + default: + return -2; + + } + } + +static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, + const char *type, const char *value) + { + if (!strcmp(type, "ec_paramgen_curve")) + { + int nid; + nid = OBJ_sn2nid(value); + if (nid == NID_undef) + nid = OBJ_ln2nid(value); + if (nid == NID_undef) + { + ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); + return 0; + } + return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); + } + return -2; + } + +static int pkey_ec_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) + { + EC_KEY *ec = NULL; + EC_PKEY_CTX *dctx = ctx->data; + int ret = 0; + if (dctx->gen_group == NULL) + { + ECerr(EC_F_PKEY_EC_PARAMGEN, EC_R_NO_PARAMETERS_SET); + return 0; + } + ec = EC_KEY_new(); + if (!ec) + return 0; + ret = EC_KEY_set_group(ec, dctx->gen_group); + if (ret) + EVP_PKEY_assign_EC_KEY(pkey, ec); + else + EC_KEY_free(ec); + return ret; + } + +static int pkey_ec_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) + { + EC_KEY *ec = NULL; + if (ctx->pkey == NULL) + { + ECerr(EC_F_PKEY_EC_KEYGEN, EC_R_NO_PARAMETERS_SET); + return 0; + } + ec = EC_KEY_new(); + if (!ec) + return 0; + EVP_PKEY_assign_EC_KEY(pkey, ec); + /* Note: if error return, pkey is freed by parent routine */ + if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey)) + return 0; + return EC_KEY_generate_key(pkey->pkey.ec); + } + +const EVP_PKEY_METHOD ec_pkey_meth = + { + EVP_PKEY_EC, + 0, + pkey_ec_init, + pkey_ec_copy, + pkey_ec_cleanup, + + 0, + pkey_ec_paramgen, + + 0, + pkey_ec_keygen, + + 0, + pkey_ec_sign, + + 0, + pkey_ec_verify, + + 0,0, + + 0,0,0,0, + + 0,0, + + 0,0, + + 0, + pkey_ec_derive, + + pkey_ec_ctrl, + pkey_ec_ctrl_str + + }; -- cgit v1.2.3