aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/des/cbc3_enc.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/des/cbc3_enc.c')
-rw-r--r--crypto/des/cbc3_enc.c80
1 files changed, 38 insertions, 42 deletions
diff --git a/crypto/des/cbc3_enc.c b/crypto/des/cbc3_enc.c
index b5db4e14f73e..249518a6a68f 100644
--- a/crypto/des/cbc3_enc.c
+++ b/crypto/des/cbc3_enc.c
@@ -5,21 +5,21 @@
* 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:
@@ -34,10 +34,10 @@
* 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
+ * 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
@@ -49,7 +49,7 @@
* 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
@@ -60,40 +60,36 @@
/* HAS BUGS! DON'T USE - this is only present for use in des.c */
void DES_3cbc_encrypt(DES_cblock *input, DES_cblock *output, long length,
- DES_key_schedule ks1, DES_key_schedule ks2, DES_cblock *iv1,
- DES_cblock *iv2, int enc)
- {
- int off=((int)length-1)/8;
- long l8=((length+7)/8)*8;
- DES_cblock niv1,niv2;
-
- if (enc == DES_ENCRYPT)
- {
- DES_cbc_encrypt((unsigned char*)input,
- (unsigned char*)output,length,&ks1,iv1,enc);
- if (length >= sizeof(DES_cblock))
- memcpy(niv1,output[off],sizeof(DES_cblock));
- DES_cbc_encrypt((unsigned char*)output,
- (unsigned char*)output,l8,&ks2,iv1,!enc);
- DES_cbc_encrypt((unsigned char*)output,
- (unsigned char*)output,l8,&ks1,iv2,enc);
- if (length >= sizeof(DES_cblock))
- memcpy(niv2,output[off],sizeof(DES_cblock));
- }
- else
- {
- if (length >= sizeof(DES_cblock))
- memcpy(niv2,input[off],sizeof(DES_cblock));
- DES_cbc_encrypt((unsigned char*)input,
- (unsigned char*)output,l8,&ks1,iv2,enc);
- DES_cbc_encrypt((unsigned char*)output,
- (unsigned char*)output,l8,&ks2,iv1,!enc);
- if (length >= sizeof(DES_cblock))
- memcpy(niv1,output[off],sizeof(DES_cblock));
- DES_cbc_encrypt((unsigned char*)output,
- (unsigned char*)output,length,&ks1,iv1,enc);
- }
- memcpy(*iv1,niv1,sizeof(DES_cblock));
- memcpy(*iv2,niv2,sizeof(DES_cblock));
- }
+ DES_key_schedule ks1, DES_key_schedule ks2,
+ DES_cblock *iv1, DES_cblock *iv2, int enc)
+{
+ int off = ((int)length - 1) / 8;
+ long l8 = ((length + 7) / 8) * 8;
+ DES_cblock niv1, niv2;
+ if (enc == DES_ENCRYPT) {
+ DES_cbc_encrypt((unsigned char *)input,
+ (unsigned char *)output, length, &ks1, iv1, enc);
+ if (length >= sizeof(DES_cblock))
+ memcpy(niv1, output[off], sizeof(DES_cblock));
+ DES_cbc_encrypt((unsigned char *)output,
+ (unsigned char *)output, l8, &ks2, iv1, !enc);
+ DES_cbc_encrypt((unsigned char *)output,
+ (unsigned char *)output, l8, &ks1, iv2, enc);
+ if (length >= sizeof(DES_cblock))
+ memcpy(niv2, output[off], sizeof(DES_cblock));
+ } else {
+ if (length >= sizeof(DES_cblock))
+ memcpy(niv2, input[off], sizeof(DES_cblock));
+ DES_cbc_encrypt((unsigned char *)input,
+ (unsigned char *)output, l8, &ks1, iv2, enc);
+ DES_cbc_encrypt((unsigned char *)output,
+ (unsigned char *)output, l8, &ks2, iv1, !enc);
+ if (length >= sizeof(DES_cblock))
+ memcpy(niv1, output[off], sizeof(DES_cblock));
+ DES_cbc_encrypt((unsigned char *)output,
+ (unsigned char *)output, length, &ks1, iv1, enc);
+ }
+ memcpy(*iv1, niv1, sizeof(DES_cblock));
+ memcpy(*iv2, niv2, sizeof(DES_cblock));
+}