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I keep forgetting to fix this: update the IV! Most important!

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Ben Laurie 1999-06-09 11:08:36 +00:00
parent 233bf734d3
commit 05861c77e7
2 changed files with 9 additions and 0 deletions
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3
CHANGES
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@ -5,6 +5,9 @@
Changes between 0.9.3a and 0.9.4 Changes between 0.9.3a and 0.9.4
*) DES CBC did not update the IV. Weird.
[Ben Laurie]
*) When bntest is run from "make test" it drives bc to check its *) When bntest is run from "make test" it drives bc to check its
calculations, as well as internally checking them. If an internal check calculations, as well as internally checking them. If an internal check
fails, it needs to cause bc to give a non-zero result or make test carries fails, it needs to cause bc to give a non-zero result or make test carries

6
crypto/des/cbc_enc.c
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@ -94,6 +94,9 @@ void des_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
tout0=tin[0]; l2c(tout0,out); tout0=tin[0]; l2c(tout0,out);
tout1=tin[1]; l2c(tout1,out); tout1=tin[1]; l2c(tout1,out);
} }
iv = &(*ivec)[0];
l2c(tout0,iv);
l2c(tout1,iv);
} }
else else
{ {
@ -122,6 +125,9 @@ void des_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
/* xor0=tin0; /* xor0=tin0;
xor1=tin1; */ xor1=tin1; */
} }
iv = &(*ivec)[0];
l2c(xor0,iv);
l2c(xor1,iv);
} }
tin0=tin1=tout0=tout1=xor0=xor1=0; tin0=tin1=tout0=tout1=xor0=xor1=0;
tin[0]=tin[1]=0; tin[0]=tin[1]=0;