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author | Matthieu Patou <mat@matws.net> | 2010-08-15 18:31:28 +0400 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2010-10-03 01:15:04 +0000 |
commit | ab6e3fce040f9ad27cbce44e9038a24f15b601c8 (patch) | |
tree | ab99a431c9610927b5d0d26335d2712b509fd6dc /source4/heimdal/lib/hcrypto/aes.c | |
parent | 197a1514d62494cc8b862d169c841a26e04b8925 (diff) | |
download | samba-ab6e3fce040f9ad27cbce44e9038a24f15b601c8.tar.gz samba-ab6e3fce040f9ad27cbce44e9038a24f15b601c8.tar.bz2 samba-ab6e3fce040f9ad27cbce44e9038a24f15b601c8.zip |
s4:heimdal: import lorikeet-heimdal-201009250123 (commit 42cabfb5b683dbcb97d583c397b897507689e382)
I based this on Matthieu's import of lorikeet-heimdal, and then
updated it to this commit.
Andrew Bartlett
Diffstat (limited to 'source4/heimdal/lib/hcrypto/aes.c')
-rw-r--r-- | source4/heimdal/lib/hcrypto/aes.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/source4/heimdal/lib/hcrypto/aes.c b/source4/heimdal/lib/hcrypto/aes.c index b3049c165a..77847e460e 100644 --- a/source4/heimdal/lib/hcrypto/aes.c +++ b/source4/heimdal/lib/hcrypto/aes.c @@ -119,3 +119,26 @@ AES_cbc_encrypt(const unsigned char *in, unsigned char *out, } } } + +void +AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, + unsigned long size, const AES_KEY *key, + unsigned char *iv, int forward_encrypt) +{ + int i; + + for (i = 0; i < size; i++) { + unsigned char tmp[AES_BLOCK_SIZE + 1]; + + memcpy(tmp, iv, AES_BLOCK_SIZE); + AES_encrypt(iv, iv, key); + if (!forward_encrypt) { + tmp[AES_BLOCK_SIZE] = in[i]; + } + out[i] = in[i] ^ iv[0]; + if (forward_encrypt) { + tmp[AES_BLOCK_SIZE] = out[i]; + } + memcpy(iv, &tmp[1], AES_BLOCK_SIZE); + } +} |