Update copyright year

[oweals/openssl.git] / crypto / sha / sha512.c

diff --git a/crypto/sha/sha512.c b/crypto/sha/sha512.c
index 263bae2904b80269f40584b732f898f9e2f38fc2..50b65ee811d66122d08f667319c21a7e51f12520 100644 (file)
--- a/crypto/sha/sha512.c
+++ b/crypto/sha/sha512.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -41,7 +41,6 @@
  * As this implementation relies on 64-bit integer type, it's totally
  * inappropriate for platforms which don't support it, most notably
  * 16-bit platforms.
- *                                      <appro@fy.chalmers.se>
  */
 #include <stdlib.h>
 #include <string.h>
@@ -51,6 +50,7 @@
 #include <openssl/opensslv.h>
 
 #include "internal/cryptlib.h"
+#include "internal/sha.h"
 
 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
     defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64) || \
@@ -60,6 +60,42 @@
 # define SHA512_BLOCK_CAN_MANAGE_UNALIGNED_DATA
 #endif
 
+int sha512_224_init(SHA512_CTX *c)
+{
+    c->h[0] = U64(0x8c3d37c819544da2);
+    c->h[1] = U64(0x73e1996689dcd4d6);
+    c->h[2] = U64(0x1dfab7ae32ff9c82);
+    c->h[3] = U64(0x679dd514582f9fcf);
+    c->h[4] = U64(0x0f6d2b697bd44da8);
+    c->h[5] = U64(0x77e36f7304c48942);
+    c->h[6] = U64(0x3f9d85a86a1d36c8);
+    c->h[7] = U64(0x1112e6ad91d692a1);
+
+    c->Nl = 0;
+    c->Nh = 0;
+    c->num = 0;
+    c->md_len = SHA224_DIGEST_LENGTH;
+    return 1;
+}
+
+int sha512_256_init(SHA512_CTX *c)
+{
+    c->h[0] = U64(0x22312194fc2bf72c);
+    c->h[1] = U64(0x9f555fa3c84c64c2);
+    c->h[2] = U64(0x2393b86b6f53b151);
+    c->h[3] = U64(0x963877195940eabd);
+    c->h[4] = U64(0x96283ee2a88effe3);
+    c->h[5] = U64(0xbe5e1e2553863992);
+    c->h[6] = U64(0x2b0199fc2c85b8aa);
+    c->h[7] = U64(0x0eb72ddc81c52ca2);
+
+    c->Nl = 0;
+    c->Nh = 0;
+    c->num = 0;
+    c->md_len = SHA256_DIGEST_LENGTH;
+    return 1;
+}
+
 int SHA384_Init(SHA512_CTX *c)
 {
     c->h[0] = U64(0xcbbb9d5dc1059ed8);
@@ -144,6 +180,46 @@ int SHA512_Final(unsigned char *md, SHA512_CTX *c)
 
     switch (c->md_len) {
     /* Let compiler decide if it's appropriate to unroll... */
+    case SHA224_DIGEST_LENGTH:
+        for (n = 0; n < SHA224_DIGEST_LENGTH / 8; n++) {
+            SHA_LONG64 t = c->h[n];
+
+            *(md++) = (unsigned char)(t >> 56);
+            *(md++) = (unsigned char)(t >> 48);
+            *(md++) = (unsigned char)(t >> 40);
+            *(md++) = (unsigned char)(t >> 32);
+            *(md++) = (unsigned char)(t >> 24);
+            *(md++) = (unsigned char)(t >> 16);
+            *(md++) = (unsigned char)(t >> 8);
+            *(md++) = (unsigned char)(t);
+        }
+        /*
+         * For 224 bits, there are four bytes left over that have to be
+         * processed separately.
+         */
+        {
+            SHA_LONG64 t = c->h[SHA224_DIGEST_LENGTH / 8];
+
+            *(md++) = (unsigned char)(t >> 56);
+            *(md++) = (unsigned char)(t >> 48);
+            *(md++) = (unsigned char)(t >> 40);
+            *(md++) = (unsigned char)(t >> 32);
+        }
+        break;
+    case SHA256_DIGEST_LENGTH:
+        for (n = 0; n < SHA256_DIGEST_LENGTH / 8; n++) {
+            SHA_LONG64 t = c->h[n];
+
+            *(md++) = (unsigned char)(t >> 56);
+            *(md++) = (unsigned char)(t >> 48);
+            *(md++) = (unsigned char)(t >> 40);
+            *(md++) = (unsigned char)(t >> 32);
+            *(md++) = (unsigned char)(t >> 24);
+            *(md++) = (unsigned char)(t >> 16);
+            *(md++) = (unsigned char)(t >> 8);
+            *(md++) = (unsigned char)(t);
+        }
+        break;
     case SHA384_DIGEST_LENGTH:
         for (n = 0; n < SHA384_DIGEST_LENGTH / 8; n++) {
             SHA_LONG64 t = c->h[n];
@@ -258,7 +334,7 @@ unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
     SHA512_Update(&c, d, n);
     SHA512_Final(md, &c);
     OPENSSL_cleanse(&c, sizeof(c));
-    return (md);
+    return md;
 }
 
 unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
@@ -272,7 +348,7 @@ unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
     SHA512_Update(&c, d, n);
     SHA512_Final(md, &c);
     OPENSSL_cleanse(&c, sizeof(c));
-    return (md);
+    return md;
 }
 
 #ifndef SHA512_ASM