-/* $OpenBSD: md5.c,v 1.9 2023/08/10 13:54:21 jsing Exp $ */
+/* $OpenBSD: md5.c,v 1.10 2023/08/10 13:58:34 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
#include "md32_common.h"
-int
-MD5_Update(MD5_CTX *c, const void *data_, size_t len)
-{
- const unsigned char *data = data_;
- unsigned char *p;
- MD5_LONG l;
- size_t n;
-
- if (len == 0)
- return 1;
-
- l = (c->Nl + (((MD5_LONG)len) << 3))&0xffffffffUL;
- /* 95-05-24 eay Fixed a bug with the overflow handling, thanks to
- * Wei Dai <weidai@eskimo.com> for pointing it out. */
- if (l < c->Nl) /* overflow */
- c->Nh++;
- c->Nh+=(MD5_LONG)(len>>29); /* might cause compiler warning on 16-bit */
- c->Nl = l;
-
- n = c->num;
- if (n != 0) {
- p = (unsigned char *)c->data;
-
- if (len >= MD5_CBLOCK || len + n >= MD5_CBLOCK) {
- memcpy(p + n, data, MD5_CBLOCK - n);
- md5_block_data_order(c, p, 1);
- n = MD5_CBLOCK - n;
- data += n;
- len -= n;
- c->num = 0;
- memset(p, 0, MD5_CBLOCK); /* keep it zeroed */
- } else {
- memcpy(p + n, data, len);
- c->num += (unsigned int)len;
- return 1;
- }
- }
-
- n = len/MD5_CBLOCK;
- if (n > 0) {
- md5_block_data_order (c, data, n);
- n *= MD5_CBLOCK;
- data += n;
- len -= n;
- }
-
- if (len != 0) {
- p = (unsigned char *)c->data;
- c->num = (unsigned int)len;
- memcpy (p, data, len);
- }
- return 1;
-}
-
-void
-MD5_Transform(MD5_CTX *c, const unsigned char *data)
-{
- md5_block_data_order(c, data, 1);
-}
-
-int
-MD5_Final(unsigned char *md, MD5_CTX *c)
-{
- unsigned char *p = (unsigned char *)c->data;
- size_t n = c->num;
-
- p[n] = 0x80; /* there is always room for one */
- n++;
-
- if (n > (MD5_CBLOCK - 8)) {
- memset(p + n, 0, MD5_CBLOCK - n);
- n = 0;
- md5_block_data_order(c, p, 1);
- }
- memset(p + n, 0, MD5_CBLOCK - 8 - n);
-
- p += MD5_CBLOCK - 8;
-#if defined(DATA_ORDER_IS_BIG_ENDIAN)
- HOST_l2c(c->Nh, p);
- HOST_l2c(c->Nl, p);
-#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
- HOST_l2c(c->Nl, p);
- HOST_l2c(c->Nh, p);
-#endif
- p -= MD5_CBLOCK;
- md5_block_data_order(c, p, 1);
- c->num = 0;
- memset(p, 0, MD5_CBLOCK);
-
-#ifndef HASH_MAKE_STRING
-#error "HASH_MAKE_STRING must be defined!"
-#else
- HASH_MAKE_STRING(c, md);
-#endif
-
- return 1;
-}
-LCRYPTO_ALIAS(MD5_Update);
-LCRYPTO_ALIAS(MD5_Transform);
-LCRYPTO_ALIAS(MD5_Final);
-
/*
#define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
#define G(x,y,z) (((x) & (z)) | ((y) & (~(z))))
/* Implemented from RFC1321 The MD5 Message-Digest Algorithm
*/
-#define INIT_DATA_A (unsigned long)0x67452301L
-#define INIT_DATA_B (unsigned long)0xefcdab89L
-#define INIT_DATA_C (unsigned long)0x98badcfeL
-#define INIT_DATA_D (unsigned long)0x10325476L
-
-int
-MD5_Init(MD5_CTX *c)
-{
- memset (c, 0, sizeof(*c));
- c->A = INIT_DATA_A;
- c->B = INIT_DATA_B;
- c->C = INIT_DATA_C;
- c->D = INIT_DATA_D;
- return 1;
-}
-LCRYPTO_ALIAS(MD5_Init);
-
#ifndef md5_block_data_order
#ifdef X
#undef X
}
#endif
+#define INIT_DATA_A (unsigned long)0x67452301L
+#define INIT_DATA_B (unsigned long)0xefcdab89L
+#define INIT_DATA_C (unsigned long)0x98badcfeL
+#define INIT_DATA_D (unsigned long)0x10325476L
+
+int
+MD5_Init(MD5_CTX *c)
+{
+ memset (c, 0, sizeof(*c));
+ c->A = INIT_DATA_A;
+ c->B = INIT_DATA_B;
+ c->C = INIT_DATA_C;
+ c->D = INIT_DATA_D;
+ return 1;
+}
+LCRYPTO_ALIAS(MD5_Init);
+
+int
+MD5_Update(MD5_CTX *c, const void *data_, size_t len)
+{
+ const unsigned char *data = data_;
+ unsigned char *p;
+ MD5_LONG l;
+ size_t n;
+
+ if (len == 0)
+ return 1;
+
+ l = (c->Nl + (((MD5_LONG)len) << 3))&0xffffffffUL;
+ /* 95-05-24 eay Fixed a bug with the overflow handling, thanks to
+ * Wei Dai <weidai@eskimo.com> for pointing it out. */
+ if (l < c->Nl) /* overflow */
+ c->Nh++;
+ c->Nh+=(MD5_LONG)(len>>29); /* might cause compiler warning on 16-bit */
+ c->Nl = l;
+
+ n = c->num;
+ if (n != 0) {
+ p = (unsigned char *)c->data;
+
+ if (len >= MD5_CBLOCK || len + n >= MD5_CBLOCK) {
+ memcpy(p + n, data, MD5_CBLOCK - n);
+ md5_block_data_order(c, p, 1);
+ n = MD5_CBLOCK - n;
+ data += n;
+ len -= n;
+ c->num = 0;
+ memset(p, 0, MD5_CBLOCK); /* keep it zeroed */
+ } else {
+ memcpy(p + n, data, len);
+ c->num += (unsigned int)len;
+ return 1;
+ }
+ }
+
+ n = len/MD5_CBLOCK;
+ if (n > 0) {
+ md5_block_data_order (c, data, n);
+ n *= MD5_CBLOCK;
+ data += n;
+ len -= n;
+ }
+
+ if (len != 0) {
+ p = (unsigned char *)c->data;
+ c->num = (unsigned int)len;
+ memcpy (p, data, len);
+ }
+ return 1;
+}
+LCRYPTO_ALIAS(MD5_Update);
+
+void
+MD5_Transform(MD5_CTX *c, const unsigned char *data)
+{
+ md5_block_data_order(c, data, 1);
+}
+LCRYPTO_ALIAS(MD5_Transform);
+
+int
+MD5_Final(unsigned char *md, MD5_CTX *c)
+{
+ unsigned char *p = (unsigned char *)c->data;
+ size_t n = c->num;
+
+ p[n] = 0x80; /* there is always room for one */
+ n++;
+
+ if (n > (MD5_CBLOCK - 8)) {
+ memset(p + n, 0, MD5_CBLOCK - n);
+ n = 0;
+ md5_block_data_order(c, p, 1);
+ }
+ memset(p + n, 0, MD5_CBLOCK - 8 - n);
+
+ p += MD5_CBLOCK - 8;
+#if defined(DATA_ORDER_IS_BIG_ENDIAN)
+ HOST_l2c(c->Nh, p);
+ HOST_l2c(c->Nl, p);
+#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+ HOST_l2c(c->Nl, p);
+ HOST_l2c(c->Nh, p);
+#endif
+ p -= MD5_CBLOCK;
+ md5_block_data_order(c, p, 1);
+ c->num = 0;
+ memset(p, 0, MD5_CBLOCK);
+
+#ifndef HASH_MAKE_STRING
+#error "HASH_MAKE_STRING must be defined!"
+#else
+ HASH_MAKE_STRING(c, md);
+#endif
+
+ return 1;
+}
+LCRYPTO_ALIAS(MD5_Final);
+
unsigned char *
MD5(const unsigned char *d, size_t n, unsigned char *md)
{
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