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Fix AES-128 writing/encryption.

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Michael R Sweet
2021-10-23 20:09:02 -04:00
parent dd56317635
commit 208c3419ff
2 changed files with 29 additions and 0 deletions
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4
pdfio-crypto.c
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@@ -239,6 +239,8 @@ _pdfio_crypto_cb_t // O - Decryption callback or `NULL` for none
// Hash it...
_pdfioCryptoMD5Init(&md5);
_pdfioCryptoMD5Append(&md5, data, sizeof(data));
if (pdf->encryption == PDFIO_ENCRYPTION_AES_128)
_pdfioCryptoMD5Append(&md5, (const uint8_t *)"sAlT", 4);
_pdfioCryptoMD5Finish(&md5, digest);
// Initialize the RC4/AES context using the digest...
@@ -301,6 +303,8 @@ _pdfio_crypto_cb_t // O - Encryption callback or `NULL` for none
// Hash it...
_pdfioCryptoMD5Init(&md5);
_pdfioCryptoMD5Append(&md5, data, sizeof(data));
if (pdf->encryption == PDFIO_ENCRYPTION_AES_128)
_pdfioCryptoMD5Append(&md5, (const uint8_t *)"sAlT", 4);
_pdfioCryptoMD5Finish(&md5, digest);
// Initialize the RC4/AES context using the digest...