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fixing DES ECB decryption

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This commit is contained in:
Tobias Brunner
2009-03-12 18:38:13 +00:00
parent d25ce3701e
commit 6e7c0b1e44
1 changed files with 6 additions and 6 deletions
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src/libstrongswan/plugins/des/des_crypter.c
+6 -6
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@@ -1128,10 +1128,8 @@ static void des_ecb_encrypt(des_cblock *input, des_cblock *output, long length,
{ {
for (l-=8; l>=0; l-=8) for (l-=8; l>=0; l-=8)
{ {
c2l(in,tin0); c2l(in,tin0); tin[0]=tin0;
c2l(in,tin1); c2l(in,tin1); tin[1]=tin1;
tin[0]=tin0;
tin[1]=tin1;
des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT); des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
tout0=tin[0]; l2c(tout0,out); tout0=tin[0]; l2c(tout0,out);
tout1=tin[1]; l2c(tout1,out); tout1=tin[1]; l2c(tout1,out);
@@ -1153,14 +1151,16 @@ static void des_ecb_encrypt(des_cblock *input, des_cblock *output, long length,
c2l(in,tin0); tin[0]=tin0; c2l(in,tin0); tin[0]=tin0;
c2l(in,tin1); tin[1]=tin1; c2l(in,tin1); tin[1]=tin1;
des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
l2c(tout0,out); tout0=tin[0]; l2c(tout0,out);
l2c(tout1,out); tout1=tin[1]; l2c(tout1,out);
} }
if (l != -8) if (l != -8)
{ {
c2l(in,tin0); tin[0]=tin0; c2l(in,tin0); tin[0]=tin0;
c2l(in,tin1); tin[1]=tin1; c2l(in,tin1); tin[1]=tin1;
des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
tout0=tin[0];
tout1=tin[1];
l2cn(tout0,tout1,out,l+8); l2cn(tout0,tout1,out,l+8);
} }
} }