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| author | Tor Andersson <tor@ghostscript.com> | 2009-08-19 03:54:12 +0200 |
|---|---|---|
| committer | Tor Andersson <tor@ghostscript.com> | 2009-08-19 03:54:12 +0200 |
| commit | e70e153f8fda0b65360beeea52409b6c543e7e24 (patch) | |
| tree | 9ffd0125e442a4e103faa9f90b0ce9aa978c4789 /fitz | |
| parent | d12d21f0ba50873a32a67a340e1dd1857c8c69df (diff) | |
| download | mupdf-e70e153f8fda0b65360beeea52409b6c543e7e24.tar.xz | |
Round down data buffer to be decrypted to a multiple of 16 for AES filter.
Diffstat (limited to 'fitz')
| -rw-r--r-- | fitz/filt_aesd.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fitz/filt_aesd.c b/fitz/filt_aesd.c index 63145bf1..9b4c0962 100644 --- a/fitz/filt_aesd.c +++ b/fitz/filt_aesd.c @@ -50,10 +50,7 @@ fz_processaesdfilter(fz_filter *filter, fz_buffer *in, fz_buffer *out) return fz_ioneedout; n = MIN(in->wp - in->rp, out->ep - out->wp); - if (n % 16 != 0) - return fz_throw("size of data to decrypt not a multiple of 16"); - if (n < 16) - return fz_throw("size of data to decrypt too small"); + n = (n / 16) * 16; aes_crypt_cbc(&f->aes, AES_DECRYPT, n, f->iv, in->rp, out->wp); in->rp += n; |