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Need object when reading/writing encrypted PDFs (to decrypt/encrypt strings),

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RC4 writing is now working, AES-128 needs work, AES-256 hasn't been done yet.
This commit is contained in:
Michael R Sweet
2021-10-23 18:08:16 -04:00
parent 3af39d5d1f
commit dd56317635
8 changed files with 175 additions and 62 deletions
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2
pdfio-crypto.c
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@@ -244,6 +244,7 @@ _pdfio_crypto_cb_t // O - Decryption callback or `NULL` for none
// Initialize the RC4/AES context using the digest...
if (pdf->encryption == PDFIO_ENCRYPTION_RC4_128)
{
*ivlen = 0;
_pdfioCryptoRC4Init(&ctx->rc4, digest, sizeof(digest));
return ((_pdfio_crypto_cb_t)_pdfioCryptoRC4Crypt);
}
@@ -305,6 +306,7 @@ _pdfio_crypto_cb_t // O - Encryption callback or `NULL` for none
// Initialize the RC4/AES context using the digest...
if (pdf->encryption == PDFIO_ENCRYPTION_RC4_128)
{
*ivlen = 0;
_pdfioCryptoRC4Init(&ctx->rc4, digest, sizeof(digest));
return ((_pdfio_crypto_cb_t)_pdfioCryptoRC4Crypt);
}