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(_krb5_aes_cts_encrypt): out iv is the iv of the next to last block,

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fix decryption case too


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13311 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2004-02-03 21:04:41 +00:00
parent b1c7bcffd1
commit 38222b38b2
1 changed files with 2 additions and 0 deletions
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2
lib/krb5/crypto.c
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@@ -2203,6 +2203,7 @@ _krb5_aes_cts_encrypt(const unsigned char *in, unsigned char *out,
len -= AES_BLOCK_SIZE;
memcpy(tmp, in, AES_BLOCK_SIZE); /* save last iv */
AES_decrypt(in, tmp2, key);
memcpy(tmp3, in + AES_BLOCK_SIZE, len);
@@ -2214,6 +2215,7 @@ _krb5_aes_cts_encrypt(const unsigned char *in, unsigned char *out,
AES_decrypt(tmp3, out, key);
for (i = 0; i < AES_BLOCK_SIZE; i++)
out[i] ^= ivec[i];
memcpy(ivec, tmp, AES_BLOCK_SIZE);
}
}