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-rw-r--r--openssl/crypto/rsa/rsa_ameth.c349
1 files changed, 349 insertions, 0 deletions
diff --git a/openssl/crypto/rsa/rsa_ameth.c b/openssl/crypto/rsa/rsa_ameth.c
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+++ b/openssl/crypto/rsa/rsa_ameth.c
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+/* 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 <stdio.h>
+#include "cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/rsa.h>
+#include <openssl/bn.h>
+#ifndef OPENSSL_NO_CMS
+#include <openssl/cms.h>
+#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 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;
+
+ }
+
+
+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,
+
+ int_rsa_free,
+ rsa_pkey_ctrl,
+ old_rsa_priv_decode,
+ old_rsa_priv_encode
+ },
+
+ {
+ EVP_PKEY_RSA2,
+ EVP_PKEY_RSA,
+ ASN1_PKEY_ALIAS
+ }
+ };
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