1 files changed, 274 insertions, 0 deletions
diff --git a/src/crypto/digest/digests.c b/src/crypto/digest/digests.c
new file mode 100644
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--- /dev/null
+++ b/src/crypto/digest/digests.c
@@ -0,0 +1,274 @@
+/* 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/digest.h>
+
+#include <openssl/md4.h>
+#include <openssl/md5.h>
+#include <openssl/obj.h>
+#include <openssl/sha.h>
+
+#include "internal.h"
+
+
+static int md4_init(EVP_MD_CTX *ctx) { return MD4_Init(ctx->md_data); }
+
+static int md4_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return MD4_Update(ctx->md_data, data, count);
+}
+
+static int md4_final(EVP_MD_CTX *ctx, unsigned char *out) {
+  return MD4_Final(out, ctx->md_data);
+}
+
+static const EVP_MD md4_md = {
+    NID_md4,    MD4_DIGEST_LENGTH, 0 /* flags */,       md4_init,
+    md4_update, md4_final,         64 /* block size */, sizeof(MD4_CTX),
+};
+
+const EVP_MD *EVP_md4(void) { return &md4_md; }
+
+
+static int md5_init(EVP_MD_CTX *ctx) { return MD5_Init(ctx->md_data); }
+
+static int md5_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return MD5_Update(ctx->md_data, data, count);
+}
+
+static int md5_final(EVP_MD_CTX *ctx, unsigned char *out) {
+  return MD5_Final(out, ctx->md_data);
+}
+
+static const EVP_MD md5_md = {
+    NID_md5,    MD5_DIGEST_LENGTH, 0 /* flags */,       md5_init,
+    md5_update, md5_final,         64 /* block size */, sizeof(MD5_CTX),
+};
+
+const EVP_MD *EVP_md5(void) { return &md5_md; }
+
+
+static int sha1_init(EVP_MD_CTX *ctx) { return SHA1_Init(ctx->md_data); }
+
+static int sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return SHA1_Update(ctx->md_data, data, count);
+}
+
+static int sha1_final(EVP_MD_CTX *ctx, unsigned char *md) {
+  return SHA1_Final(md, ctx->md_data);
+}
+
+static const EVP_MD sha1_md = {
+    NID_sha1,    SHA_DIGEST_LENGTH, 0 /* flags */,       sha1_init,
+    sha1_update, sha1_final,        64 /* block size */, sizeof(SHA_CTX),
+};
+
+const EVP_MD *EVP_sha1(void) { return &sha1_md; }
+
+
+static int sha224_init(EVP_MD_CTX *ctx) { return SHA224_Init(ctx->md_data); }
+
+static int sha224_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return SHA224_Update(ctx->md_data, data, count);
+}
+
+static int sha224_final(EVP_MD_CTX *ctx, unsigned char *md) {
+  return SHA224_Final(md, ctx->md_data);
+}
+
+static const EVP_MD sha224_md = {
+    NID_sha224,          SHA224_DIGEST_LENGTH, 0 /* flags */,
+    sha224_init,         sha224_update,        sha224_final,
+    64 /* block size */, sizeof(SHA256_CTX),
+};
+
+const EVP_MD *EVP_sha224(void) { return &sha224_md; }
+
+
+static int sha256_init(EVP_MD_CTX *ctx) { return SHA256_Init(ctx->md_data); }
+
+static int sha256_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return SHA256_Update(ctx->md_data, data, count);
+}
+
+static int sha256_final(EVP_MD_CTX *ctx, unsigned char *md) {
+  return SHA256_Final(md, ctx->md_data);
+}
+
+static const EVP_MD sha256_md = {
+    NID_sha256,          SHA256_DIGEST_LENGTH, 0 /* flags */,
+    sha256_init,         sha256_update,        sha256_final,
+    64 /* block size */, sizeof(SHA256_CTX),
+};
+
+const EVP_MD *EVP_sha256(void) { return &sha256_md; }
+
+
+static int sha384_init(EVP_MD_CTX *ctx) { return SHA384_Init(ctx->md_data); }
+
+static int sha384_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return SHA384_Update(ctx->md_data, data, count);
+}
+
+static int sha384_final(EVP_MD_CTX *ctx, unsigned char *md) {
+  return SHA384_Final(md, ctx->md_data);
+}
+
+static const EVP_MD sha384_md = {
+    NID_sha384,           SHA384_DIGEST_LENGTH, 0 /* flags */,
+    sha384_init,          sha384_update,        sha384_final,
+    128 /* block size */, sizeof(SHA512_CTX),
+};
+
+const EVP_MD *EVP_sha384(void) { return &sha384_md; }
+
+
+static int sha512_init(EVP_MD_CTX *ctx) { return SHA512_Init(ctx->md_data); }
+
+static int sha512_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
+  return SHA512_Update(ctx->md_data, data, count);
+}
+
+static int sha512_final(EVP_MD_CTX *ctx, unsigned char *md) {
+  return SHA512_Final(md, ctx->md_data);
+}
+
+static const EVP_MD sha512_md = {
+    NID_sha512,           SHA512_DIGEST_LENGTH, 0 /* flags */,
+    sha512_init,          sha512_update,        sha512_final,
+    128 /* block size */, sizeof(SHA512_CTX),
+};
+
+const EVP_MD *EVP_sha512(void) { return &sha512_md; }
+
+
+typedef struct {
+  MD5_CTX md5;
+  SHA_CTX sha1;
+} MD5_SHA1_CTX;
+
+static int md5_sha1_init(EVP_MD_CTX *md_ctx) {
+  MD5_SHA1_CTX *ctx = md_ctx->md_data;
+  return MD5_Init(&ctx->md5) && SHA1_Init(&ctx->sha1);
+}
+
+static int md5_sha1_update(EVP_MD_CTX *md_ctx, const void *data, size_t count) {
+  MD5_SHA1_CTX *ctx = md_ctx->md_data;
+  return MD5_Update(&ctx->md5, data, count) && SHA1_Update(&ctx->sha1, data, count);
+}
+
+static int md5_sha1_final(EVP_MD_CTX *md_ctx, unsigned char *out) {
+  MD5_SHA1_CTX *ctx = md_ctx->md_data;
+  if (!MD5_Final(out, &ctx->md5) ||
+      !SHA1_Final(out + MD5_DIGEST_LENGTH, &ctx->sha1)) {
+    return 0;
+  }
+  return 1;
+}
+
+static const EVP_MD md5_sha1_md = {
+    NID_md5_sha1,
+    MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
+    0 /* flags */,
+    md5_sha1_init,
+    md5_sha1_update,
+    md5_sha1_final,
+    64 /* block size */,
+    sizeof(MD5_SHA1_CTX),
+};
+
+const EVP_MD *EVP_md5_sha1(void) { return &md5_sha1_md; }
+
+
+struct nid_to_digest {
+  int nid;
+  const EVP_MD* (*md_func)(void);
+};
+
+static const struct nid_to_digest nid_to_digest_mapping[] = {
+  { NID_md5, EVP_md5 },
+  { NID_sha1, EVP_sha1 },
+  { NID_sha224, EVP_sha224 },
+  { NID_sha256, EVP_sha256 },
+  { NID_sha384, EVP_sha384 },
+  { NID_sha512, EVP_sha512 },
+  { NID_md5_sha1, EVP_md5_sha1 },
+  { NID_dsaWithSHA, EVP_sha1 },
+  { NID_dsaWithSHA1, EVP_sha1 },
+  { NID_ecdsa_with_SHA1, EVP_sha1 },
+  { NID_md5WithRSAEncryption, EVP_md5 },
+  { NID_sha1WithRSAEncryption, EVP_sha1 },
+  { NID_sha224WithRSAEncryption, EVP_sha224 },
+  { NID_sha256WithRSAEncryption, EVP_sha256 },
+  { NID_sha384WithRSAEncryption, EVP_sha384 },
+  { NID_sha512WithRSAEncryption, EVP_sha512 },
+};
+
+const EVP_MD* EVP_get_digestbynid(int nid) {
+  unsigned i;
+
+  for (i = 0; i < sizeof(nid_to_digest_mapping) / sizeof(struct nid_to_digest);
+       i++) {
+    if (nid_to_digest_mapping[i].nid == nid) {
+      return nid_to_digest_mapping[i].md_func();
+    }
+  }
+
+  return NULL;
+}
+
+const EVP_MD* EVP_get_digestbyobj(const ASN1_OBJECT *obj) {
+  return EVP_get_digestbynid(OBJ_obj2nid(obj));
+}