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authorCaolán McNamara <caolanm@redhat.com>2016-10-20 14:25:13 +0100
committerCaolán McNamara <caolanm@redhat.com>2016-10-21 11:16:11 +0100
commitfc514cbf30be1613fdf4d4b7c12cbd55ca08b9b0 (patch)
tree927407e2073694207561dfb3a1761c5da24b7d88 /include/filter
parentfcc846e8f29839eaace7e1d28746abea8f4b598a (diff)
move some useful header information to mscodec for reuse
Change-Id: Ic7adf3ed3c8279cc93a06975d6fb337210d1af87
Diffstat (limited to 'include/filter')
-rw-r--r--include/filter/msfilter/mscodec.hxx64
1 files changed, 64 insertions, 0 deletions
diff --git a/include/filter/msfilter/mscodec.hxx b/include/filter/msfilter/mscodec.hxx
index 1b91df68b33d..dd3acbc1a6bf 100644
--- a/include/filter/msfilter/mscodec.hxx
+++ b/include/filter/msfilter/mscodec.hxx
@@ -355,6 +355,70 @@ private:
sal_uInt8 m_pDocId[16];
};
+const sal_uInt32 ENCRYPTINFO_CRYPTOAPI = 0x00000004;
+const sal_uInt32 ENCRYPTINFO_DOCPROPS = 0x00000008;
+const sal_uInt32 ENCRYPTINFO_EXTERNAL = 0x00000010;
+const sal_uInt32 ENCRYPTINFO_AES = 0x00000020;
+
+const sal_uInt32 ENCRYPT_ALGO_AES128 = 0x0000660E;
+const sal_uInt32 ENCRYPT_ALGO_AES192 = 0x0000660F;
+const sal_uInt32 ENCRYPT_ALGO_AES256 = 0x00006610;
+const sal_uInt32 ENCRYPT_ALGO_RC4 = 0x00006801;
+
+const sal_uInt32 ENCRYPT_HASH_SHA1 = 0x00008004;
+
+const sal_uInt32 ENCRYPT_KEY_SIZE_AES_128 = 0x00000080;
+const sal_uInt32 ENCRYPT_KEY_SIZE_AES_192 = 0x000000C0;
+const sal_uInt32 ENCRYPT_KEY_SIZE_AES_256 = 0x00000100;
+
+const sal_uInt32 ENCRYPT_PROVIDER_TYPE_AES = 0x00000018;
+const sal_uInt32 ENCRYPT_PROVIDER_TYPE_RC4 = 0x00000001;
+
+// version of encryption info used in MS Office 2007 (major = 3, minor = 2)
+const sal_uInt32 VERSION_INFO_2007_FORMAT = 0x00020003;
+// version of encryption info used in MS Office 2007 SP2 and older (major = 4, minor = 2)
+const sal_uInt32 VERSION_INFO_2007_FORMAT_SP2 = 0x00020004;
+
+// version of encryption info - agile (major = 4, minor = 4)
+const sal_uInt32 VERSION_INFO_AGILE = 0x00040004;
+
+const sal_uInt32 SALT_LENGTH = 16;
+const sal_uInt32 ENCRYPTED_VERIFIER_LENGTH = 16;
+const sal_uInt32 SHA1_HASH_LENGTH = RTL_DIGEST_LENGTH_SHA1; // 20
+const sal_uInt32 SHA256_HASH_LENGTH = 32;
+const sal_uInt32 SHA512_HASH_LENGTH = 64;
+
+struct MSFILTER_DLLPUBLIC EncryptionStandardHeader
+{
+ sal_uInt32 flags;
+ sal_uInt32 sizeExtra; // 0
+ sal_uInt32 algId; // if flag AES && CRYPTOAPI this defaults to 128-bit AES
+ sal_uInt32 algIdHash; // 0: determine by flags - defaults to SHA-1 if not external
+ sal_uInt32 keyBits; // key size in bits: 0 (determine by flags), 128, 192, 256
+ sal_uInt32 providedType; // AES or RC4
+ sal_uInt32 reserved1; // 0
+ sal_uInt32 reserved2; // 0
+
+ EncryptionStandardHeader();
+};
+
+struct MSFILTER_DLLPUBLIC EncryptionVerifierAES
+{
+ sal_uInt32 saltSize; // must be 0x00000010
+ sal_uInt8 salt[SALT_LENGTH]; // random generated salt value
+ sal_uInt8 encryptedVerifier[ENCRYPTED_VERIFIER_LENGTH]; // randomly generated verifier value
+ sal_uInt32 encryptedVerifierHashSize; // actually written hash size - depends on algorithm
+ sal_uInt8 encryptedVerifierHash[SHA256_HASH_LENGTH]; // verifier value hash - itself also encrypted
+
+ EncryptionVerifierAES();
+};
+
+struct MSFILTER_DLLPUBLIC StandardEncryptionInfo
+{
+ EncryptionStandardHeader header;
+ EncryptionVerifierAES verifier;
+};
+
} // namespace msfilter