Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
--- a/external/boringssl/crypto/x509/a_sign.c
+++ b/external/boringssl/crypto/x509/a_sign.c
@@ -0,0 +1,135 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+#include <openssl/digest.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+#include <openssl/x509.h>
+
+#include "internal.h"
+
+int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1,
+                   X509_ALGOR *algor2, ASN1_BIT_STRING *signature, void *asn,
+                   EVP_PKEY *pkey, const EVP_MD *type)
+{
+    EVP_MD_CTX ctx;
+    EVP_MD_CTX_init(&ctx);
+    if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) {
+        EVP_MD_CTX_cleanup(&ctx);
+        return 0;
+    }
+    return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx);
+}
+
+int ASN1_item_sign_ctx(const ASN1_ITEM *it,
+                       X509_ALGOR *algor1, X509_ALGOR *algor2,
+                       ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx)
+{
+    EVP_PKEY *pkey;
+    unsigned char *buf_in = NULL, *buf_out = NULL;
+    size_t inl = 0, outl = 0, outll = 0;
+
+    pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx);
+
+    /* Write out the requested copies of the AlgorithmIdentifier. */
+    if (algor1 && !x509_digest_sign_algorithm(ctx, algor1)) {
+        goto err;
+    }
+    if (algor2 && !x509_digest_sign_algorithm(ctx, algor2)) {
+        goto err;
+    }
+
+    inl = ASN1_item_i2d(asn, &buf_in, it);
+    outll = outl = EVP_PKEY_size(pkey);
+    buf_out = OPENSSL_malloc((unsigned int)outl);
+    if ((buf_in == NULL) || (buf_out == NULL)) {
+        outl = 0;
+        OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    if (!EVP_DigestSignUpdate(ctx, buf_in, inl)
+        || !EVP_DigestSignFinal(ctx, buf_out, &outl)) {
+        outl = 0;
+        OPENSSL_PUT_ERROR(X509, ERR_R_EVP_LIB);
+        goto err;
+    }
+    if (signature->data != NULL)
+        OPENSSL_free(signature->data);
+    signature->data = buf_out;
+    buf_out = NULL;
+    signature->length = outl;
+    /*
+     * In the interests of compatibility, I'll make sure that the bit string
+     * has a 'not-used bits' value of 0
+     */
+    signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+    signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ err:
+    EVP_MD_CTX_cleanup(ctx);
+    if (buf_in != NULL) {
+        OPENSSL_cleanse((char *)buf_in, (unsigned int)inl);
+        OPENSSL_free(buf_in);
+    }
+    if (buf_out != NULL) {
+        OPENSSL_cleanse((char *)buf_out, outll);
+        OPENSSL_free(buf_out);
+    }
+    return (outl);
+}