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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
commit46651ce6fe013220ed397add242004d764fc0153 (patch)
tree6e5299f990f88e60174a1d3ae6e48eedd2688b2b /contrib/pgcrypto/internal-sha2.c
parentInitial commit. (diff)
downloadpostgresql-14-46651ce6fe013220ed397add242004d764fc0153.tar.xz
postgresql-14-46651ce6fe013220ed397add242004d764fc0153.zip
Adding upstream version 14.5.upstream/14.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/pgcrypto/internal-sha2.c')
-rw-r--r--contrib/pgcrypto/internal-sha2.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/contrib/pgcrypto/internal-sha2.c b/contrib/pgcrypto/internal-sha2.c
new file mode 100644
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--- /dev/null
+++ b/contrib/pgcrypto/internal-sha2.c
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+/*
+ * internal.c
+ * Wrapper for builtin functions
+ *
+ * Copyright (c) 2001 Marko Kreen
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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.
+ *
+ * contrib/pgcrypto/internal-sha2.c
+ */
+
+#include "postgres.h"
+
+#include <time.h>
+
+#include "common/cryptohash.h"
+#include "common/sha2.h"
+#include "px.h"
+
+void init_sha224(PX_MD *h);
+void init_sha256(PX_MD *h);
+void init_sha384(PX_MD *h);
+void init_sha512(PX_MD *h);
+
+/* SHA224 */
+static unsigned
+int_sha224_len(PX_MD *h)
+{
+ return PG_SHA224_DIGEST_LENGTH;
+}
+
+static unsigned
+int_sha224_block_len(PX_MD *h)
+{
+ return PG_SHA224_BLOCK_LENGTH;
+}
+
+/* SHA256 */
+static unsigned
+int_sha256_len(PX_MD *h)
+{
+ return PG_SHA256_DIGEST_LENGTH;
+}
+
+static unsigned
+int_sha256_block_len(PX_MD *h)
+{
+ return PG_SHA256_BLOCK_LENGTH;
+}
+
+/* SHA384 */
+static unsigned
+int_sha384_len(PX_MD *h)
+{
+ return PG_SHA384_DIGEST_LENGTH;
+}
+
+static unsigned
+int_sha384_block_len(PX_MD *h)
+{
+ return PG_SHA384_BLOCK_LENGTH;
+}
+
+/* SHA512 */
+static unsigned
+int_sha512_len(PX_MD *h)
+{
+ return PG_SHA512_DIGEST_LENGTH;
+}
+
+static unsigned
+int_sha512_block_len(PX_MD *h)
+{
+ return PG_SHA512_BLOCK_LENGTH;
+}
+
+/* Generic interface for all SHA2 methods */
+static void
+int_sha2_update(PX_MD *h, const uint8 *data, unsigned dlen)
+{
+ pg_cryptohash_ctx *ctx = (pg_cryptohash_ctx *) h->p.ptr;
+
+ if (pg_cryptohash_update(ctx, data, dlen) < 0)
+ elog(ERROR, "could not update %s context", "SHA2");
+}
+
+static void
+int_sha2_reset(PX_MD *h)
+{
+ pg_cryptohash_ctx *ctx = (pg_cryptohash_ctx *) h->p.ptr;
+
+ if (pg_cryptohash_init(ctx) < 0)
+ elog(ERROR, "could not initialize %s context", "SHA2");
+}
+
+static void
+int_sha2_finish(PX_MD *h, uint8 *dst)
+{
+ pg_cryptohash_ctx *ctx = (pg_cryptohash_ctx *) h->p.ptr;
+
+ if (pg_cryptohash_final(ctx, dst, h->result_size(h)) < 0)
+ elog(ERROR, "could not finalize %s context", "SHA2");
+}
+
+static void
+int_sha2_free(PX_MD *h)
+{
+ pg_cryptohash_ctx *ctx = (pg_cryptohash_ctx *) h->p.ptr;
+
+ pg_cryptohash_free(ctx);
+ pfree(h);
+}
+
+/* init functions */
+
+void
+init_sha224(PX_MD *md)
+{
+ pg_cryptohash_ctx *ctx;
+
+ ctx = pg_cryptohash_create(PG_SHA224);
+ md->p.ptr = ctx;
+
+ md->result_size = int_sha224_len;
+ md->block_size = int_sha224_block_len;
+ md->reset = int_sha2_reset;
+ md->update = int_sha2_update;
+ md->finish = int_sha2_finish;
+ md->free = int_sha2_free;
+
+ md->reset(md);
+}
+
+void
+init_sha256(PX_MD *md)
+{
+ pg_cryptohash_ctx *ctx;
+
+ ctx = pg_cryptohash_create(PG_SHA256);
+ md->p.ptr = ctx;
+
+ md->result_size = int_sha256_len;
+ md->block_size = int_sha256_block_len;
+ md->reset = int_sha2_reset;
+ md->update = int_sha2_update;
+ md->finish = int_sha2_finish;
+ md->free = int_sha2_free;
+
+ md->reset(md);
+}
+
+void
+init_sha384(PX_MD *md)
+{
+ pg_cryptohash_ctx *ctx;
+
+ ctx = pg_cryptohash_create(PG_SHA384);
+ md->p.ptr = ctx;
+
+ md->result_size = int_sha384_len;
+ md->block_size = int_sha384_block_len;
+ md->reset = int_sha2_reset;
+ md->update = int_sha2_update;
+ md->finish = int_sha2_finish;
+ md->free = int_sha2_free;
+
+ md->reset(md);
+}
+
+void
+init_sha512(PX_MD *md)
+{
+ pg_cryptohash_ctx *ctx;
+
+ ctx = pg_cryptohash_create(PG_SHA512);
+ md->p.ptr = ctx;
+
+ md->result_size = int_sha512_len;
+ md->block_size = int_sha512_block_len;
+ md->reset = int_sha2_reset;
+ md->update = int_sha2_update;
+ md->finish = int_sha2_finish;
+ md->free = int_sha2_free;
+
+ md->reset(md);
+}