X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fcrypto%2Frsa%2Frsa_ameth.c;fp=lib%2Fopenssl%2Fcrypto%2Frsa%2Frsa_ameth.c;h=4c8ecd9233e1908f3622bba39ed2c26b01a86509;hb=9ff1530871deeb0f7eaa35ca0db6630724045e4a;hp=0000000000000000000000000000000000000000;hpb=25b73076b01ae059da1a2e9a1677e00788ada620;p=cassiopeia.git diff --git a/lib/openssl/crypto/rsa/rsa_ameth.c b/lib/openssl/crypto/rsa/rsa_ameth.c new file mode 100644 index 0000000..4c8ecd9 --- /dev/null +++ b/lib/openssl/crypto/rsa/rsa_ameth.c @@ -0,0 +1,698 @@ +/* crypto/rsa/rsa_ameth.c */ +/* 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 +#ifndef OPENSSL_NO_CMS +#include +#endif +#include "asn1_locl.h" + +static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) + { + unsigned char *penc = NULL; + int penclen; + penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc); + if (penclen <= 0) + return 0; + if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_RSA), + V_ASN1_NULL, NULL, penc, penclen)) + return 1; + + OPENSSL_free(penc); + return 0; + } + +static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) + { + const unsigned char *p; + int pklen; + RSA *rsa = NULL; + if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, NULL, pubkey)) + return 0; + if (!(rsa = d2i_RSAPublicKey(NULL, &p, pklen))) + { + RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA (pkey, rsa); + return 1; + } + +static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) + { + if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0 + || BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0) + return 0; + return 1; + } + +static int old_rsa_priv_decode(EVP_PKEY *pkey, + const unsigned char **pder, int derlen) + { + RSA *rsa; + if (!(rsa = d2i_RSAPrivateKey (NULL, pder, derlen))) + { + RSAerr(RSA_F_OLD_RSA_PRIV_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA(pkey, rsa); + return 1; + } + +static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) + { + return i2d_RSAPrivateKey(pkey->pkey.rsa, pder); + } + +static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) + { + unsigned char *rk = NULL; + int rklen; + rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk); + + if (rklen <= 0) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0, + V_ASN1_NULL, NULL, rk, rklen)) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + return 1; + } + +static int rsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) + { + const unsigned char *p; + int pklen; + if (!PKCS8_pkey_get0(NULL, &p, &pklen, NULL, p8)) + return 0; + return old_rsa_priv_decode(pkey, &p, pklen); + } + +static int int_rsa_size(const EVP_PKEY *pkey) + { + return RSA_size(pkey->pkey.rsa); + } + +static int rsa_bits(const EVP_PKEY *pkey) + { + return BN_num_bits(pkey->pkey.rsa->n); + } + +static void int_rsa_free(EVP_PKEY *pkey) + { + RSA_free(pkey->pkey.rsa); + } + + +static void update_buflen(const BIGNUM *b, size_t *pbuflen) + { + size_t i; + if (!b) + return; + if (*pbuflen < (i = (size_t)BN_num_bytes(b))) + *pbuflen = i; + } + +static int do_rsa_print(BIO *bp, const RSA *x, int off, int priv) + { + char *str; + const char *s; + unsigned char *m=NULL; + int ret=0, mod_len = 0; + size_t buf_len=0; + + update_buflen(x->n, &buf_len); + update_buflen(x->e, &buf_len); + + if (priv) + { + update_buflen(x->d, &buf_len); + update_buflen(x->p, &buf_len); + update_buflen(x->q, &buf_len); + update_buflen(x->dmp1, &buf_len); + update_buflen(x->dmq1, &buf_len); + update_buflen(x->iqmp, &buf_len); + } + + m=(unsigned char *)OPENSSL_malloc(buf_len+10); + if (m == NULL) + { + RSAerr(RSA_F_DO_RSA_PRINT,ERR_R_MALLOC_FAILURE); + goto err; + } + + if (x->n != NULL) + mod_len = BN_num_bits(x->n); + + if(!BIO_indent(bp,off,128)) + goto err; + + if (priv && x->d) + { + if (BIO_printf(bp,"Private-Key: (%d bit)\n", mod_len) + <= 0) goto err; + str = "modulus:"; + s = "publicExponent:"; + } + else + { + if (BIO_printf(bp,"Public-Key: (%d bit)\n", mod_len) + <= 0) goto err; + str = "Modulus:"; + s= "Exponent:"; + } + if (!ASN1_bn_print(bp,str,x->n,m,off)) goto err; + if (!ASN1_bn_print(bp,s,x->e,m,off)) + goto err; + if (priv) + { + if (!ASN1_bn_print(bp,"privateExponent:",x->d,m,off)) + goto err; + if (!ASN1_bn_print(bp,"prime1:",x->p,m,off)) + goto err; + if (!ASN1_bn_print(bp,"prime2:",x->q,m,off)) + goto err; + if (!ASN1_bn_print(bp,"exponent1:",x->dmp1,m,off)) + goto err; + if (!ASN1_bn_print(bp,"exponent2:",x->dmq1,m,off)) + goto err; + if (!ASN1_bn_print(bp,"coefficient:",x->iqmp,m,off)) + goto err; + } + ret=1; +err: + if (m != NULL) OPENSSL_free(m); + return(ret); + } + +static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_rsa_print(bp, pkey->pkey.rsa, indent, 0); + } + + +static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_rsa_print(bp, pkey->pkey.rsa, indent, 1); + } + +static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg, + X509_ALGOR **pmaskHash) + { + const unsigned char *p; + int plen; + RSA_PSS_PARAMS *pss; + + *pmaskHash = NULL; + + if (!alg->parameter || alg->parameter->type != V_ASN1_SEQUENCE) + return NULL; + p = alg->parameter->value.sequence->data; + plen = alg->parameter->value.sequence->length; + pss = d2i_RSA_PSS_PARAMS(NULL, &p, plen); + + if (!pss) + return NULL; + + if (pss->maskGenAlgorithm) + { + ASN1_TYPE *param = pss->maskGenAlgorithm->parameter; + if (OBJ_obj2nid(pss->maskGenAlgorithm->algorithm) == NID_mgf1 + && param->type == V_ASN1_SEQUENCE) + { + p = param->value.sequence->data; + plen = param->value.sequence->length; + *pmaskHash = d2i_X509_ALGOR(NULL, &p, plen); + } + } + + return pss; + } + +static int rsa_pss_param_print(BIO *bp, RSA_PSS_PARAMS *pss, + X509_ALGOR *maskHash, int indent) + { + int rv = 0; + if (!pss) + { + if (BIO_puts(bp, " (INVALID PSS PARAMETERS)\n") <= 0) + return 0; + return 1; + } + if (BIO_puts(bp, "\n") <= 0) + goto err; + if (!BIO_indent(bp, indent, 128)) + goto err; + if (BIO_puts(bp, "Hash Algorithm: ") <= 0) + goto err; + + if (pss->hashAlgorithm) + { + if (i2a_ASN1_OBJECT(bp, pss->hashAlgorithm->algorithm) <= 0) + goto err; + } + else if (BIO_puts(bp, "sha1 (default)") <= 0) + goto err; + + if (BIO_puts(bp, "\n") <= 0) + goto err; + + if (!BIO_indent(bp, indent, 128)) + goto err; + + if (BIO_puts(bp, "Mask Algorithm: ") <= 0) + goto err; + if (pss->maskGenAlgorithm) + { + if (i2a_ASN1_OBJECT(bp, pss->maskGenAlgorithm->algorithm) <= 0) + goto err; + if (BIO_puts(bp, " with ") <= 0) + goto err; + if (maskHash) + { + if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0) + goto err; + } + else if (BIO_puts(bp, "INVALID") <= 0) + goto err; + } + else if (BIO_puts(bp, "mgf1 with sha1 (default)") <= 0) + goto err; + BIO_puts(bp, "\n"); + + if (!BIO_indent(bp, indent, 128)) + goto err; + if (BIO_puts(bp, "Salt Length: 0x") <= 0) + goto err; + if (pss->saltLength) + { + if (i2a_ASN1_INTEGER(bp, pss->saltLength) <= 0) + goto err; + } + else if (BIO_puts(bp, "14 (default)") <= 0) + goto err; + BIO_puts(bp, "\n"); + + if (!BIO_indent(bp, indent, 128)) + goto err; + if (BIO_puts(bp, "Trailer Field: 0x") <= 0) + goto err; + if (pss->trailerField) + { + if (i2a_ASN1_INTEGER(bp, pss->trailerField) <= 0) + goto err; + } + else if (BIO_puts(bp, "BC (default)") <= 0) + goto err; + BIO_puts(bp, "\n"); + + rv = 1; + + err: + return rv; + + } + +static int rsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, + const ASN1_STRING *sig, + int indent, ASN1_PCTX *pctx) + { + if (OBJ_obj2nid(sigalg->algorithm) == NID_rsassaPss) + { + int rv; + RSA_PSS_PARAMS *pss; + X509_ALGOR *maskHash; + pss = rsa_pss_decode(sigalg, &maskHash); + rv = rsa_pss_param_print(bp, pss, maskHash, indent); + if (pss) + RSA_PSS_PARAMS_free(pss); + if (maskHash) + X509_ALGOR_free(maskHash); + if (!rv) + return 0; + } + else if (!sig && BIO_puts(bp, "\n") <= 0) + return 0; + if (sig) + return X509_signature_dump(bp, sig, indent); + return 1; + } + +static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) + { + X509_ALGOR *alg = NULL; + switch (op) + { + + case ASN1_PKEY_CTRL_PKCS7_SIGN: + if (arg1 == 0) + PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg); + break; + + case ASN1_PKEY_CTRL_PKCS7_ENCRYPT: + if (arg1 == 0) + PKCS7_RECIP_INFO_get0_alg(arg2, &alg); + break; +#ifndef OPENSSL_NO_CMS + case ASN1_PKEY_CTRL_CMS_SIGN: + if (arg1 == 0) + CMS_SignerInfo_get0_algs(arg2, NULL, NULL, NULL, &alg); + break; + + case ASN1_PKEY_CTRL_CMS_ENVELOPE: + if (arg1 == 0) + CMS_RecipientInfo_ktri_get0_algs(arg2, NULL, NULL, &alg); + break; +#endif + + case ASN1_PKEY_CTRL_DEFAULT_MD_NID: + *(int *)arg2 = NID_sha1; + return 1; + + default: + return -2; + + } + + if (alg) + X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), + V_ASN1_NULL, 0); + + return 1; + + } + +/* Customised RSA item verification routine. This is called + * when a signature is encountered requiring special handling. We + * currently only handle PSS. + */ + + +static int rsa_item_verify(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, + X509_ALGOR *sigalg, ASN1_BIT_STRING *sig, + EVP_PKEY *pkey) + { + int rv = -1; + int saltlen; + const EVP_MD *mgf1md = NULL, *md = NULL; + RSA_PSS_PARAMS *pss; + X509_ALGOR *maskHash; + EVP_PKEY_CTX *pkctx; + /* Sanity check: make sure it is PSS */ + if (OBJ_obj2nid(sigalg->algorithm) != NID_rsassaPss) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_SIGNATURE_TYPE); + return -1; + } + /* Decode PSS parameters */ + pss = rsa_pss_decode(sigalg, &maskHash); + + if (pss == NULL) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_INVALID_PSS_PARAMETERS); + goto err; + } + /* Check mask and lookup mask hash algorithm */ + if (pss->maskGenAlgorithm) + { + if (OBJ_obj2nid(pss->maskGenAlgorithm->algorithm) != NID_mgf1) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_MASK_ALGORITHM); + goto err; + } + if (!maskHash) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_MASK_PARAMETER); + goto err; + } + mgf1md = EVP_get_digestbyobj(maskHash->algorithm); + if (mgf1md == NULL) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNKNOWN_MASK_DIGEST); + goto err; + } + } + else + mgf1md = EVP_sha1(); + + if (pss->hashAlgorithm) + { + md = EVP_get_digestbyobj(pss->hashAlgorithm->algorithm); + if (md == NULL) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNKNOWN_PSS_DIGEST); + goto err; + } + } + else + md = EVP_sha1(); + + if (pss->saltLength) + { + saltlen = ASN1_INTEGER_get(pss->saltLength); + + /* Could perform more salt length sanity checks but the main + * RSA routines will trap other invalid values anyway. + */ + if (saltlen < 0) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_INVALID_SALT_LENGTH); + goto err; + } + } + else + saltlen = 20; + + /* low-level routines support only trailer field 0xbc (value 1) + * and PKCS#1 says we should reject any other value anyway. + */ + if (pss->trailerField && ASN1_INTEGER_get(pss->trailerField) != 1) + { + RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_INVALID_TRAILER); + goto err; + } + + /* We have all parameters now set up context */ + + if (!EVP_DigestVerifyInit(ctx, &pkctx, md, NULL, pkey)) + goto err; + + if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_PSS_PADDING) <= 0) + goto err; + + if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkctx, saltlen) <= 0) + goto err; + + if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0) + goto err; + /* Carry on */ + rv = 2; + + err: + RSA_PSS_PARAMS_free(pss); + if (maskHash) + X509_ALGOR_free(maskHash); + return rv; + } + +static int rsa_item_sign(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, + X509_ALGOR *alg1, X509_ALGOR *alg2, + ASN1_BIT_STRING *sig) + { + int pad_mode; + EVP_PKEY_CTX *pkctx = ctx->pctx; + if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0) + return 0; + if (pad_mode == RSA_PKCS1_PADDING) + return 2; + if (pad_mode == RSA_PKCS1_PSS_PADDING) + { + const EVP_MD *sigmd, *mgf1md; + RSA_PSS_PARAMS *pss = NULL; + X509_ALGOR *mgf1alg = NULL; + ASN1_STRING *os1 = NULL, *os2 = NULL; + EVP_PKEY *pk = EVP_PKEY_CTX_get0_pkey(pkctx); + int saltlen, rv = 0; + sigmd = EVP_MD_CTX_md(ctx); + if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0) + goto err; + if (!EVP_PKEY_CTX_get_rsa_pss_saltlen(pkctx, &saltlen)) + goto err; + if (saltlen == -1) + saltlen = EVP_MD_size(sigmd); + else if (saltlen == -2) + { + saltlen = EVP_PKEY_size(pk) - EVP_MD_size(sigmd) - 2; + if (((EVP_PKEY_bits(pk) - 1) & 0x7) == 0) + saltlen--; + } + pss = RSA_PSS_PARAMS_new(); + if (!pss) + goto err; + if (saltlen != 20) + { + pss->saltLength = ASN1_INTEGER_new(); + if (!pss->saltLength) + goto err; + if (!ASN1_INTEGER_set(pss->saltLength, saltlen)) + goto err; + } + if (EVP_MD_type(sigmd) != NID_sha1) + { + pss->hashAlgorithm = X509_ALGOR_new(); + if (!pss->hashAlgorithm) + goto err; + X509_ALGOR_set_md(pss->hashAlgorithm, sigmd); + } + if (EVP_MD_type(mgf1md) != NID_sha1) + { + ASN1_STRING *stmp = NULL; + /* need to embed algorithm ID inside another */ + mgf1alg = X509_ALGOR_new(); + X509_ALGOR_set_md(mgf1alg, mgf1md); + if (!ASN1_item_pack(mgf1alg, ASN1_ITEM_rptr(X509_ALGOR), + &stmp)) + goto err; + pss->maskGenAlgorithm = X509_ALGOR_new(); + if (!pss->maskGenAlgorithm) + goto err; + X509_ALGOR_set0(pss->maskGenAlgorithm, + OBJ_nid2obj(NID_mgf1), + V_ASN1_SEQUENCE, stmp); + } + /* Finally create string with pss parameter encoding. */ + if (!ASN1_item_pack(pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), &os1)) + goto err; + if (alg2) + { + os2 = ASN1_STRING_dup(os1); + if (!os2) + goto err; + X509_ALGOR_set0(alg2, OBJ_nid2obj(NID_rsassaPss), + V_ASN1_SEQUENCE, os2); + } + X509_ALGOR_set0(alg1, OBJ_nid2obj(NID_rsassaPss), + V_ASN1_SEQUENCE, os1); + os1 = os2 = NULL; + rv = 3; + err: + if (mgf1alg) + X509_ALGOR_free(mgf1alg); + if (pss) + RSA_PSS_PARAMS_free(pss); + if (os1) + ASN1_STRING_free(os1); + return rv; + + } + return 2; + } + +const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[] = + { + { + EVP_PKEY_RSA, + EVP_PKEY_RSA, + ASN1_PKEY_SIGPARAM_NULL, + + "RSA", + "OpenSSL RSA method", + + rsa_pub_decode, + rsa_pub_encode, + rsa_pub_cmp, + rsa_pub_print, + + rsa_priv_decode, + rsa_priv_encode, + rsa_priv_print, + + int_rsa_size, + rsa_bits, + + 0,0,0,0,0,0, + + rsa_sig_print, + int_rsa_free, + rsa_pkey_ctrl, + old_rsa_priv_decode, + old_rsa_priv_encode, + rsa_item_verify, + rsa_item_sign + }, + + { + EVP_PKEY_RSA2, + EVP_PKEY_RSA, + ASN1_PKEY_ALIAS + } + };